/* roulang page: index */
:root{
      --primary:#7C3AED;
      --primary-2:#8B5CF6;
      --secondary:#14B8A6;
      --cyan:#22D3EE;
      --accent:#A3E635;
      --ink:#111827;
      --ink-2:#172033;
      --muted:#5B6472;
      --bg:#F7F8FC;
      --bg-soft:#F3F0FF;
      --bg-cyan:#EEFDFB;
      --dark:#11121A;
      --dark-2:#171526;
      --line:rgba(124,58,237,.14);
      --line-strong:rgba(20,184,166,.35);
      --card:#FFFFFF;
      --radius:28px;
      --radius-lg:34px;
      --shadow:0 18px 50px rgba(31,24,69,.10);
      --shadow-hover:0 24px 70px rgba(31,24,69,.16);
      --ease:cubic-bezier(.2,.75,.25,1);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
      color:var(--ink);
      background:
        radial-gradient(circle at 7% 8%, rgba(124,58,237,.12), transparent 32%),
        radial-gradient(circle at 86% 14%, rgba(20,184,166,.13), transparent 34%),
        linear-gradient(180deg,#fff 0%,var(--bg) 42%,#fff 100%);
      line-height:1.75;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    ::selection{background:rgba(124,58,237,.18);color:var(--ink)}
    .site-container{max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
    .skip-link{position:absolute;left:-999px;top:12px;background:#fff;color:var(--primary);padding:10px 14px;border-radius:999px;z-index:100}
    .skip-link:focus{left:12px}
    .topbar{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(255,255,255,.86);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(124,58,237,.10);
      transition:box-shadow .25s var(--ease), background .25s var(--ease);
    }
    .topbar.scrolled{box-shadow:0 10px 30px rgba(17,24,39,.08);background:rgba(255,255,255,.94)}
    .nav-shell{height:68px;display:flex;align-items:center;justify-content:space-between;gap:22px}
    .brand{display:flex;align-items:center;gap:12px;min-width:max-content}
    .brand-mark{
      width:42px;height:42px;border-radius:16px;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      position:relative;box-shadow:0 12px 28px rgba(124,58,237,.22);
      overflow:hidden;
    }
    .brand-mark:before{
      content:"";position:absolute;inset:10px 8px;
      border:2px solid rgba(255,255,255,.78);
      border-left-color:transparent;border-right-color:transparent;
      border-radius:50%;
      transform:rotate(-18deg);
    }
    .brand-mark:after{
      content:"";position:absolute;width:8px;height:8px;border-radius:50%;
      right:8px;top:8px;background:var(--accent);box-shadow:0 0 18px rgba(163,230,53,.8);
    }
    .brand-title{font-size:18px;font-weight:800;letter-spacing:-.02em;color:var(--ink)}
    .brand-sub{display:block;margin-top:-2px;font-size:11px;color:var(--muted);line-height:1.1}
    .desktop-nav{display:flex;align-items:center;gap:4px}
    .nav-link{
      position:relative;
      padding:9px 14px;
      border-radius:999px;
      font-size:14px;
      font-weight:700;
      color:#394150;
      transition:color .22s var(--ease),background .22s var(--ease),transform .22s var(--ease);
    }
    .nav-link:after{
      content:"";position:absolute;left:18px;right:18px;bottom:5px;height:2px;
      border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--secondary));
      transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease);
    }
    .nav-link:hover{color:var(--primary);background:rgba(124,58,237,.06);transform:translateY(-1px)}
    .nav-link:hover:after,.nav-link.active:after{transform:scaleX(1)}
    .nav-link.active{color:var(--primary);background:linear-gradient(90deg,rgba(124,58,237,.10),rgba(20,184,166,.08))}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .search-pill{
      display:flex;align-items:center;gap:8px;
      min-width:160px;padding:9px 13px;border:1px solid var(--line);
      border-radius:999px;background:#fff;color:var(--muted);font-size:13px;font-weight:650;
      box-shadow:0 8px 20px rgba(31,24,69,.05);
    }
    .search-dot{width:8px;height:8px;border-radius:50%;background:var(--secondary);box-shadow:0 0 0 5px rgba(20,184,166,.12)}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:9px;
      border:0;border-radius:999px;padding:12px 18px;
      font-weight:800;font-size:14px;line-height:1;
      cursor:pointer;transition:transform .24s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease),border-color .24s var(--ease),color .24s var(--ease);
      white-space:nowrap;
    }
    .btn-primary{
      color:#fff;background:linear-gradient(135deg,var(--primary),var(--secondary));
      box-shadow:0 14px 34px rgba(124,58,237,.24);
    }
    .btn-primary:hover{transform:translateY(-3px);box-shadow:0 20px 44px rgba(20,184,166,.24);background:linear-gradient(135deg,var(--secondary),var(--primary))}
    .btn-secondary{color:var(--primary);background:#fff;border:1px solid rgba(124,58,237,.18);box-shadow:0 10px 26px rgba(31,24,69,.06)}
    .btn-secondary:hover{transform:translateY(-3px);background:#F5F2FF;border-color:rgba(124,58,237,.30)}
    .btn-dark-secondary{color:#fff;background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.22)}
    .btn-dark-secondary:hover{background:#fff;color:var(--primary);transform:translateY(-3px)}
    .btn:focus-visible,.nav-link:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible,a:focus-visible,button:focus-visible{
      outline:3px solid rgba(34,211,238,.36);
      outline-offset:3px;
    }
    .mobile-menu-btn{
      display:none;width:42px;height:42px;border:1px solid var(--line);
      background:#fff;border-radius:15px;align-items:center;justify-content:center;
    }
    .mobile-menu-btn span,.mobile-menu-btn span:before,.mobile-menu-btn span:after{
      display:block;width:18px;height:2px;background:var(--ink);border-radius:9px;position:relative;transition:.2s var(--ease);
    }
    .mobile-menu-btn span:before,.mobile-menu-btn span:after{content:"";position:absolute;left:0}
    .mobile-menu-btn span:before{top:-6px}.mobile-menu-btn span:after{top:6px}
    .mobile-panel{
      display:none;margin:0 20px 14px;padding:14px;background:#fff;border:1px solid var(--line);
      border-radius:24px;box-shadow:var(--shadow);
    }
    .mobile-panel.open{display:block}
    .mobile-panel a{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border-radius:16px;font-weight:750;color:#334155}
    .mobile-panel a.active,.mobile-panel a:hover{background:linear-gradient(90deg,rgba(124,58,237,.10),rgba(20,184,166,.08));color:var(--primary)}
    .hero{
      position:relative;
      padding:84px 0 78px;
      overflow:hidden;
    }
    .hero:before{
      content:"";position:absolute;right:-160px;top:35px;width:540px;height:540px;border-radius:50%;
      background:radial-gradient(circle,rgba(34,211,238,.22),transparent 60%);
      pointer-events:none;
    }
    .hero:after{
      content:"";position:absolute;left:-150px;bottom:-180px;width:480px;height:480px;border-radius:50%;
      background:radial-gradient(circle,rgba(124,58,237,.16),transparent 62%);
      pointer-events:none;
    }
    .section{padding:84px 0}
    .section-tight{padding:64px 0}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:7px 12px;border-radius:999px;
      background:linear-gradient(90deg,rgba(124,58,237,.10),rgba(20,184,166,.10));
      color:var(--primary);font-size:13px;font-weight:800;
      border:1px solid rgba(124,58,237,.14);
    }
    .eyebrow:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 18px rgba(163,230,53,.65)}
    .gradient-text{background:linear-gradient(90deg,var(--primary),var(--secondary));-webkit-background-clip:text;background-clip:text;color:transparent}
    .hero-title{
      font-weight:900;line-height:1.05;letter-spacing:-.045em;
      font-size:clamp(2.35rem,6vw,4.65rem);
      color:var(--ink);
    }
    .lead{font-size:18px;line-height:1.9;color:var(--muted)}
    .trust-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
    .trust-chip{
      display:inline-flex;align-items:center;gap:8px;padding:9px 12px;border-radius:999px;
      background:rgba(255,255,255,.76);border:1px solid var(--line);color:#344054;font-weight:700;font-size:13px;
    }
    .trust-chip i{width:7px;height:7px;border-radius:50%;background:var(--secondary)}
    .visual-card{
      position:relative;min-height:560px;border-radius:38px;padding:16px;
      background:linear-gradient(145deg,rgba(124,58,237,.24),rgba(20,184,166,.18));
      box-shadow:0 28px 80px rgba(31,24,69,.16);
      border:1px solid rgba(124,58,237,.18);
    }
    .visual-frame{
      position:relative;height:100%;min-height:528px;border-radius:30px;overflow:hidden;
      background:linear-gradient(145deg,#231a43,#0f322f);
    }
    .visual-frame img{width:100%;height:100%;min-height:528px;object-fit:cover;opacity:.88;filter:saturate(1.08) contrast(1.03)}
    .visual-frame:after{
      content:"";position:absolute;inset:0;
      background:
        linear-gradient(180deg,rgba(17,18,26,.10),rgba(17,18,26,.58)),
        radial-gradient(circle at 20% 12%,rgba(124,58,237,.45),transparent 38%),
        radial-gradient(circle at 82% 28%,rgba(20,184,166,.38),transparent 34%);
    }
    .float-badge{
      position:absolute;z-index:3;
      background:rgba(255,255,255,.90);backdrop-filter:blur(14px);
      border:1px solid rgba(255,255,255,.60);border-radius:22px;
      padding:14px 16px;box-shadow:0 18px 40px rgba(17,24,39,.16);
    }
    .float-badge strong{display:block;font-size:24px;line-height:1;font-weight:900;color:var(--ink)}
    .float-badge span{display:block;margin-top:5px;font-size:12px;color:var(--muted);font-weight:700}
    .badge-one{left:-22px;top:54px}.badge-two{right:-16px;top:210px}.badge-three{left:30px;bottom:38px}
    .tide-line{
      position:absolute;z-index:4;left:42px;right:42px;bottom:146px;height:74px;
      border-radius:999px;border:1px solid rgba(255,255,255,.26);
      background:linear-gradient(90deg,rgba(124,58,237,.28),rgba(20,184,166,.18));
      clip-path:polygon(0 52%,10% 44%,20% 62%,31% 30%,42% 55%,52% 36%,64% 58%,76% 38%,88% 50%,100% 32%,100% 100%,0 100%);
      opacity:.86;
    }
    .card{
      background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
      box-shadow:var(--shadow);transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease),background .25s var(--ease);
    }
    .card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
    .section-title{font-size:clamp(2rem,4.2vw,3rem);line-height:1.16;letter-spacing:-.035em;font-weight:900;color:var(--ink)}
    .section-desc{color:var(--muted);font-size:17px;line-height:1.85}
    .service-main{
      min-height:100%;padding:32px;border-radius:34px;
      background:
        linear-gradient(135deg,rgba(124,58,237,.12),rgba(20,184,166,.10)),
        #fff;
      position:relative;overflow:hidden;
    }
    .service-main:after{
      content:"";position:absolute;right:-60px;bottom:-90px;width:260px;height:260px;border-radius:50%;
      background:radial-gradient(circle,rgba(34,211,238,.22),transparent 65%);
    }
    .icon-box{
      width:52px;height:52px;border-radius:20px;
      display:flex;align-items:center;justify-content:center;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      color:#fff;box-shadow:0 16px 32px rgba(124,58,237,.20);
    }
    .service-strip{
      padding:22px 24px;display:grid;grid-template-columns:auto 1fr auto;gap:16px;align-items:center;
    }
    .tag{
      display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;
      background:rgba(124,58,237,.08);color:var(--primary);border:1px solid rgba(124,58,237,.12);
      font-size:12px;font-weight:800;line-height:1.2;
    }
    .tag-cyan{background:rgba(20,184,166,.10);color:#0F766E;border-color:rgba(20,184,166,.16)}
    .dark-panel{
      border-radius:38px;background:
        radial-gradient(circle at 12% 20%,rgba(124,58,237,.45),transparent 28%),
        radial-gradient(circle at 88% 24%,rgba(20,184,166,.34),transparent 32%),
        linear-gradient(135deg,var(--dark),var(--dark-2));
      color:#fff;position:relative;overflow:hidden;border:1px solid rgba(255,255,255,.10);
      box-shadow:0 28px 80px rgba(17,18,26,.24);
    }
    .dark-panel:before{
      content:"";position:absolute;inset:0;
      background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
      background-size:38px 38px;mask-image:linear-gradient(180deg,rgba(0,0,0,.75),transparent 88%);
      pointer-events:none;
    }
    .kpi-card{
      position:relative;z-index:1;padding:24px;border-radius:26px;background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);backdrop-filter:blur(12px);
      transition:.24s var(--ease);
    }
    .kpi-card:hover{transform:translateY(-4px);background:rgba(255,255,255,.12)}
    .kpi-number{
      font-size:42px;line-height:1;font-weight:950;letter-spacing:-.04em;
      background:linear-gradient(90deg,#fff,var(--cyan),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent;
    }
    .scenario-card{padding:26px;position:relative;overflow:hidden}
    .scenario-card.wide{grid-column:span 2}
    .mini-graphic{
      height:86px;border-radius:24px;margin-top:22px;
      background:
        linear-gradient(90deg,rgba(124,58,237,.14),rgba(20,184,166,.10)),
        repeating-linear-gradient(90deg,rgba(124,58,237,.10) 0 12px,transparent 12px 24px);
      position:relative;overflow:hidden;
    }
    .mini-graphic:after{
      content:"";position:absolute;left:18px;right:18px;top:32px;height:4px;border-radius:999px;
      background:linear-gradient(90deg,var(--primary),var(--secondary),var(--accent));
      box-shadow:0 0 22px rgba(20,184,166,.30);
    }
    .image-tile{
      position:relative;overflow:hidden;border-radius:26px;border:1px solid var(--line);min-height:240px;background:linear-gradient(135deg,#F3F0FF,#EEFDFB);
    }
    .image-tile img{width:100%;height:100%;min-height:240px;object-fit:cover}
    .image-tile:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 15%,rgba(17,18,26,.55))}
    .step-item{display:grid;grid-template-columns:54px 1fr;gap:18px;position:relative}
    .step-item:not(:last-child){padding-bottom:28px}
    .step-item:not(:last-child):after{
      content:"";position:absolute;left:26px;top:58px;bottom:0;width:2px;
      background:linear-gradient(180deg,rgba(124,58,237,.28),rgba(20,184,166,.20));
    }
    .step-num{
      width:54px;height:54px;border-radius:20px;display:flex;align-items:center;justify-content:center;
      background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;font-weight:900;box-shadow:0 14px 30px rgba(124,58,237,.22);
      position:relative;z-index:1;
    }
    .dashboard{
      border-radius:34px;padding:28px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);
      position:relative;overflow:hidden;
    }
    .dashboard:before{
      content:"";position:absolute;right:-70px;top:-70px;width:190px;height:190px;border-radius:50%;
      background:radial-gradient(circle,rgba(20,184,166,.18),transparent 70%);
    }
    .dash-row{
      display:flex;align-items:center;justify-content:space-between;gap:14px;padding:14px 0;border-bottom:1px solid rgba(124,58,237,.10);
      position:relative;z-index:1;
    }
    .progress{height:9px;border-radius:999px;background:#EFEAFB;overflow:hidden;min-width:130px}
    .progress span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--secondary))}
    details.faq-item{
      background:#fff;border:1px solid var(--line);border-radius:24px;padding:0 22px;box-shadow:0 12px 34px rgba(31,24,69,.06);
      transition:.22s var(--ease);
    }
    details.faq-item + details.faq-item{margin-top:14px}
    details.faq-item[open]{border-color:var(--line-strong);background:linear-gradient(135deg,rgba(124,58,237,.045),rgba(20,184,166,.035)),#fff}
    details.faq-item:hover{border-color:var(--line-strong)}
    details.faq-item summary{
      list-style:none;cursor:pointer;padding:20px 0;font-weight:850;color:var(--ink);display:flex;align-items:center;justify-content:space-between;gap:18px;
    }
    details.faq-item summary::-webkit-details-marker{display:none}
    .faq-plus{
      flex:0 0 auto;width:30px;height:30px;border-radius:999px;display:flex;align-items:center;justify-content:center;
      background:rgba(124,58,237,.08);color:var(--primary);font-weight:900;transition:.22s var(--ease);
    }
    details[open] .faq-plus{transform:rotate(45deg);background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff}
    .faq-body{color:var(--muted);padding:0 0 20px;font-size:15.5px}
    .contact-panel{
      border-radius:38px;padding:38px;background:
        radial-gradient(circle at 22% 8%,rgba(124,58,237,.46),transparent 30%),
        radial-gradient(circle at 92% 18%,rgba(20,184,166,.34),transparent 32%),
        linear-gradient(135deg,#11121A,#19162B);
      color:#fff;overflow:hidden;position:relative;box-shadow:0 28px 80px rgba(17,18,26,.25);
    }
    .contact-panel:after{
      content:"";position:absolute;right:32px;bottom:32px;width:150px;height:80px;border:1px solid rgba(255,255,255,.18);
      border-left:0;border-top:0;border-radius:0 0 80px 0;opacity:.6;
    }
    .form-card{position:relative;z-index:1;background:rgba(255,255,255,.92);border:1px solid rgba(255,255,255,.62);border-radius:30px;padding:24px;color:var(--ink);box-shadow:0 22px 55px rgba(0,0,0,.18)}
    .field{width:100%;height:52px;border-radius:16px;border:1px solid #E6E2F5;background:#fff;padding:0 15px;color:var(--ink);transition:.2s var(--ease)}
    textarea.field{height:auto;min-height:118px;padding-top:13px;resize:vertical}
    .field:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(124,58,237,.10);outline:0}
    .footer{
      margin-top:50px;background:#fff;border-top:1px solid rgba(124,58,237,.12);
    }
    .footer-top{padding:54px 0 34px}
    .footer-link{color:#4B5563;font-weight:700;transition:.2s var(--ease)}
    .footer-link:hover{color:var(--primary)}
    .footer-tags{display:flex;flex-wrap:wrap;gap:8px}
    .footer-tag{padding:7px 10px;border-radius:999px;background:#F5F2FF;color:var(--primary);font-size:12px;font-weight:800;border:1px solid rgba(124,58,237,.10)}
    .copyright{border-top:1px solid rgba(124,58,237,.10);padding:18px 0;color:#667085;font-size:13px}
    @media (max-width:1024px){
      .desktop-nav,.search-pill,.nav-actions .btn-primary{display:none}
      .mobile-menu-btn{display:flex}
      .visual-card{min-height:460px;margin-top:26px}
      .visual-frame,.visual-frame img{min-height:430px}
      .scenario-card.wide{grid-column:span 1}
      .service-strip{grid-template-columns:auto 1fr}
      .service-strip .tag{grid-column:2}
    }
    @media (max-width:768px){
      .site-container{padding-left:18px;padding-right:18px}
      .nav-shell{height:62px}
      .brand-title{font-size:16px}
      .brand-sub{display:none}
      .brand-mark{width:38px;height:38px;border-radius:14px}
      .hero{padding:58px 0 54px}
      .section{padding:62px 0}
      .section-tight{padding:50px 0}
      .lead{font-size:16px}
      .visual-card{padding:10px;border-radius:30px;min-height:380px}
      .visual-frame,.visual-frame img{min-height:360px;border-radius:24px}
      .float-badge{padding:11px 12px;border-radius:18px}
      .float-badge strong{font-size:19px}
      .badge-one{left:8px;top:28px}.badge-two{right:8px;top:150px}.badge-three{left:16px;bottom:24px}
      .tide-line{left:24px;right:24px;bottom:110px;height:58px}
      .service-main{padding:24px;border-radius:28px}
      .dark-panel,.contact-panel{border-radius:30px}
      .contact-panel{padding:26px}
      .form-card{padding:18px;border-radius:24px}
    }
    @media (max-width:520px){
      .hero-title{font-size:2.25rem}
      .btn{width:100%;padding:14px 18px}
      .hero-actions{width:100%;display:grid;grid-template-columns:1fr;gap:12px}
      .trust-row{display:grid;grid-template-columns:1fr}
      .kpi-number{font-size:34px}
      .dash-row{align-items:flex-start;flex-direction:column}
      .progress{width:100%}
      details.faq-item{padding:0 16px}
    }

/* roulang page: category1 */
:root{
      --primary:#7C3AED;
      --primary-2:#8B5CF6;
      --secondary:#14B8A6;
      --secondary-2:#22D3EE;
      --accent:#A3E635;
      --ink:#111827;
      --ink-2:#172033;
      --muted:#5B6472;
      --soft:#F7F8FC;
      --soft-purple:#F3F0FF;
      --soft-cyan:#EEFDFB;
      --line:rgba(124,58,237,.14);
      --line-strong:rgba(20,184,166,.35);
      --card:#FFFFFF;
      --dark:#11121A;
      --dark-2:#171526;
      --radius:28px;
      --radius-lg:34px;
      --shadow:0 18px 50px rgba(31,24,69,.10);
      --shadow-hover:0 24px 70px rgba(31,24,69,.16);
      --nav-h:72px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
      color:var(--ink);
      background:
        radial-gradient(circle at 8% 0%, rgba(124,58,237,.14), transparent 30%),
        radial-gradient(circle at 92% 8%, rgba(20,184,166,.14), transparent 28%),
        linear-gradient(180deg,#FCFCFF 0%,#F7F8FC 45%,#FFFFFF 100%);
      line-height:1.75;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    ::selection{background:rgba(124,58,237,.18);color:var(--ink)}
    :focus-visible{outline:3px solid rgba(34,211,238,.58);outline-offset:3px;border-radius:14px}
    .site-container{width:min(1200px, calc(100% - 40px));margin-inline:auto}
    .topbar{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(255,255,255,.88);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(124,58,237,.12);
      transition:box-shadow .25s ease, background .25s ease;
    }
    .topbar.is-scrolled{box-shadow:0 12px 36px rgba(31,24,69,.08);background:rgba(255,255,255,.94)}
    .nav-shell{
      min-height:var(--nav-h);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:13px;
      min-width:240px;
    }
    .brand-mark{
      width:44px;
      height:44px;
      border-radius:16px;
      position:relative;
      flex:0 0 auto;
      background:
        radial-gradient(circle at 70% 20%, rgba(163,230,53,.85), transparent 18%),
        linear-gradient(135deg,var(--primary),var(--secondary));
      box-shadow:0 14px 34px rgba(124,58,237,.28);
      overflow:hidden;
    }
    .brand-mark:before{
      content:"";
      position:absolute;
      inset:11px 8px;
      border:2px solid rgba(255,255,255,.78);
      border-left-color:transparent;
      border-right-color:transparent;
      border-radius:50%;
      transform:rotate(-18deg);
    }
    .brand-mark:after{
      content:"";
      position:absolute;
      left:12px;
      right:12px;
      top:21px;
      height:2px;
      border-radius:999px;
      background:rgba(255,255,255,.9);
      box-shadow:0 6px 0 rgba(255,255,255,.35);
    }
    .brand-title{display:block;font-weight:900;letter-spacing:-.02em;color:var(--ink);line-height:1.1;font-size:18px}
    .brand-sub{display:block;font-size:12px;line-height:1.25;color:var(--muted);margin-top:3px;white-space:nowrap}
    .desktop-nav{display:flex;align-items:center;gap:6px;padding:5px;border:1px solid rgba(124,58,237,.10);border-radius:999px;background:rgba(247,248,252,.68)}
    .nav-link{
      position:relative;
      padding:9px 16px;
      border-radius:999px;
      font-size:14px;
      font-weight:800;
      color:#4B5563;
      transition:color .22s ease, background .22s ease, transform .22s ease;
    }
    .nav-link:after{
      content:"";
      position:absolute;
      left:18px;
      right:18px;
      bottom:5px;
      height:2px;
      border-radius:999px;
      background:linear-gradient(90deg,var(--primary),var(--secondary));
      opacity:0;
      transform:scaleX(.35);
      transition:opacity .22s ease, transform .22s ease;
    }
    .nav-link:hover{color:var(--primary);background:rgba(124,58,237,.06);transform:translateY(-1px)}
    .nav-link:hover:after{opacity:.65;transform:scaleX(1)}
    .nav-link.active{
      color:var(--primary);
      background:linear-gradient(90deg,rgba(124,58,237,.12),rgba(20,184,166,.10));
    }
    .nav-link.active:after{opacity:1;transform:scaleX(1)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .search-pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:42px;
      padding:0 14px;
      border-radius:999px;
      border:1px solid rgba(124,58,237,.13);
      background:#fff;
      color:#536071;
      font-size:13px;
      font-weight:800;
      box-shadow:0 10px 24px rgba(31,24,69,.05);
      transition:transform .22s ease,border-color .22s ease,color .22s ease;
    }
    .search-pill:hover{transform:translateY(-2px);border-color:var(--line-strong);color:var(--primary)}
    .search-dot{
      width:9px;
      height:9px;
      border-radius:999px;
      background:var(--accent);
      box-shadow:0 0 0 5px rgba(163,230,53,.16);
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:44px;
      padding:0 20px;
      border-radius:999px;
      font-weight:900;
      font-size:14px;
      line-height:1;
      border:1px solid transparent;
      cursor:pointer;
      transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
      white-space:nowrap;
    }
    .btn:hover{transform:translateY(-2px)}
    .btn:active{transform:translateY(0) scale(.99)}
    .btn-primary{
      color:#fff;
      background:linear-gradient(100deg,var(--primary),var(--secondary));
      box-shadow:0 16px 34px rgba(124,58,237,.24);
    }
    .btn-primary:hover{box-shadow:0 18px 42px rgba(20,184,166,.26);background:linear-gradient(100deg,var(--secondary),var(--primary))}
    .btn-secondary{
      color:var(--primary);
      background:#fff;
      border-color:rgba(124,58,237,.18);
      box-shadow:0 12px 30px rgba(31,24,69,.06);
    }
    .btn-secondary:hover{background:var(--soft-purple);border-color:rgba(124,58,237,.32)}
    .btn-dark-secondary{
      color:#fff;
      background:rgba(255,255,255,.10);
      border-color:rgba(255,255,255,.24);
    }
    .btn-dark-secondary:hover{background:#fff;color:var(--primary)}
    .mobile-menu-btn{
      display:none;
      width:44px;
      height:44px;
      border:1px solid rgba(124,58,237,.15);
      border-radius:16px;
      background:#fff;
      position:relative;
      box-shadow:0 10px 24px rgba(31,24,69,.06);
    }
    .mobile-menu-btn span,
    .mobile-menu-btn:before,
    .mobile-menu-btn:after{
      content:"";
      position:absolute;
      left:12px;
      right:12px;
      height:2px;
      border-radius:999px;
      background:var(--ink);
      transition:transform .25s ease,opacity .25s ease,top .25s ease;
    }
    .mobile-menu-btn span{top:21px}
    .mobile-menu-btn:before{top:15px}
    .mobile-menu-btn:after{top:27px}
    .mobile-menu-btn[aria-expanded="true"] span{opacity:0}
    .mobile-menu-btn[aria-expanded="true"]:before{top:21px;transform:rotate(45deg)}
    .mobile-menu-btn[aria-expanded="true"]:after{top:21px;transform:rotate(-45deg)}
    .mobile-panel{
      display:none;
      width:min(1200px, calc(100% - 40px));
      margin:0 auto 14px;
      padding:12px;
      border:1px solid rgba(124,58,237,.13);
      border-radius:24px;
      background:rgba(255,255,255,.96);
      box-shadow:var(--shadow);
    }
    .mobile-panel a{
      display:flex;
      align-items:center;
      justify-content:space-between;
      padding:14px 14px;
      border-radius:16px;
      font-weight:900;
      color:#374151;
    }
    .mobile-panel a:hover,.mobile-panel a.active{background:linear-gradient(90deg,rgba(124,58,237,.12),rgba(20,184,166,.10));color:var(--primary)}
    .section{padding:84px 0}
    .section-sm{padding:60px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      border:1px solid rgba(124,58,237,.14);
      background:rgba(255,255,255,.75);
      color:var(--primary);
      font-weight:900;
      font-size:13px;
      letter-spacing:.02em;
      box-shadow:0 10px 28px rgba(31,24,69,.06);
    }
    .eyebrow:before{
      content:"";
      width:8px;
      height:8px;
      border-radius:999px;
      background:var(--accent);
      box-shadow:0 0 0 5px rgba(163,230,53,.14);
    }
    .gradient-text{
      background:linear-gradient(96deg,var(--primary),var(--secondary));
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .topic-hero{
      position:relative;
      padding:54px 0 46px;
      overflow:hidden;
      background:
        linear-gradient(90deg,rgba(255,255,255,.72),rgba(255,255,255,.82)),
        radial-gradient(circle at 85% 25%,rgba(34,211,238,.22),transparent 34%),
        radial-gradient(circle at 16% 18%,rgba(124,58,237,.17),transparent 32%);
    }
    .topic-hero:before{
      content:"";
      position:absolute;
      inset:0;
      background-image:
        linear-gradient(rgba(124,58,237,.07) 1px, transparent 1px),
        linear-gradient(90deg, rgba(20,184,166,.07) 1px, transparent 1px);
      background-size:34px 34px;
      mask-image:linear-gradient(90deg,rgba(0,0,0,.75),transparent 88%);
      pointer-events:none;
    }
    .hero-card{
      position:relative;
      border:1px solid rgba(124,58,237,.13);
      border-radius:var(--radius-lg);
      padding:20px;
      background:rgba(255,255,255,.74);
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .hero-card:after{
      content:"";
      position:absolute;
      width:190px;
      height:190px;
      right:-70px;
      top:-90px;
      border-radius:50%;
      background:radial-gradient(circle,rgba(163,230,53,.25),transparent 70%);
      pointer-events:none;
    }
    .visual-img{
      width:100%;
      min-height:260px;
      border-radius:26px;
      object-fit:cover;
      background:linear-gradient(135deg,var(--soft-purple),var(--soft-cyan));
    }
    .visual-overlay{
      position:absolute;
      inset:20px;
      border-radius:26px;
      background:linear-gradient(180deg,rgba(17,18,26,.05),rgba(17,18,26,.42));
      pointer-events:none;
    }
    .floating-metric{
      position:absolute;
      left:38px;
      bottom:38px;
      right:38px;
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:10px;
      z-index:2;
    }
    .metric-chip{
      padding:12px 14px;
      border-radius:18px;
      background:rgba(255,255,255,.86);
      backdrop-filter:blur(12px);
      border:1px solid rgba(255,255,255,.52);
      box-shadow:0 14px 28px rgba(0,0,0,.12);
    }
    .metric-chip strong{display:block;font-size:20px;line-height:1.1;color:var(--primary)}
    .metric-chip span{display:block;font-size:12px;color:#4B5563;margin-top:4px;font-weight:800}
    .breadcrumb{
      display:flex;
      align-items:center;
      gap:8px;
      flex-wrap:wrap;
      font-size:14px;
      color:#667085;
      font-weight:800;
      margin-bottom:18px;
    }
    .breadcrumb a:hover{color:var(--primary)}
    .hero-statbar{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:12px;
      margin-top:28px;
    }
    .hero-stat{
      border:1px solid rgba(124,58,237,.12);
      border-radius:20px;
      padding:14px;
      background:rgba(255,255,255,.78);
      box-shadow:0 12px 28px rgba(31,24,69,.05);
    }
    .hero-stat b{display:block;color:var(--ink);font-size:16px}
    .hero-stat span{display:block;color:var(--muted);font-size:13px;margin-top:2px}
    .tag-row{display:flex;flex-wrap:wrap;gap:12px}
    .filter-tag{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:42px;
      padding:0 18px;
      border-radius:999px;
      border:1px solid rgba(124,58,237,.14);
      background:#fff;
      color:#4B5563;
      font-weight:900;
      font-size:14px;
      box-shadow:0 10px 24px rgba(31,24,69,.05);
      transition:transform .22s ease,border-color .22s ease,color .22s ease,background .22s ease;
    }
    .filter-tag:hover{transform:translateY(-3px);border-color:var(--line-strong);color:var(--primary)}
    .filter-tag.active{background:linear-gradient(100deg,var(--primary),var(--secondary));color:#fff;border-color:transparent;box-shadow:0 16px 34px rgba(124,58,237,.22)}
    .card{
      border:1px solid rgba(124,58,237,.12);
      border-radius:var(--radius);
      background:var(--card);
      box-shadow:var(--shadow);
      transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
    }
    .card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
    .featured-card{overflow:hidden}
    .featured-media{
      position:relative;
      border-radius:24px;
      overflow:hidden;
      background:linear-gradient(135deg,var(--soft-purple),var(--soft-cyan));
    }
    .featured-media img{width:100%;height:318px;object-fit:cover}
    .featured-media:after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg,rgba(17,18,26,0),rgba(17,18,26,.34));
    }
    .category-badge{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:6px 11px;
      border-radius:999px;
      font-size:12px;
      font-weight:900;
      color:var(--primary);
      background:rgba(124,58,237,.10);
      border:1px solid rgba(124,58,237,.13);
    }
    .category-badge.cyan{color:#0F766E;background:rgba(20,184,166,.10);border-color:rgba(20,184,166,.18)}
    .article-meta{
      display:flex;
      align-items:center;
      gap:10px;
      flex-wrap:wrap;
      color:#667085;
      font-size:13px;
      font-weight:800;
    }
    .article-meta span{display:inline-flex;align-items:center;gap:6px}
    .article-meta span:before{
      content:"";
      width:5px;
      height:5px;
      border-radius:999px;
      background:rgba(124,58,237,.45);
    }
    .compact-list{display:grid;gap:14px}
    .compact-item{
      display:grid;
      grid-template-columns:92px 1fr;
      gap:14px;
      align-items:center;
      padding:14px;
      border-radius:24px;
      border:1px solid rgba(124,58,237,.10);
      background:rgba(255,255,255,.82);
      box-shadow:0 12px 32px rgba(31,24,69,.06);
      transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
    }
    .compact-item:hover{transform:translateX(4px);border-color:var(--line-strong);box-shadow:0 18px 42px rgba(31,24,69,.10)}
    .compact-thumb{
      width:92px;
      height:92px;
      border-radius:20px;
      overflow:hidden;
      background:
        radial-gradient(circle at 72% 20%,rgba(163,230,53,.34),transparent 28%),
        linear-gradient(135deg,rgba(124,58,237,.18),rgba(20,184,166,.16));
      position:relative;
    }
    .compact-thumb img{width:100%;height:100%;object-fit:cover}
    .compact-thumb.icon-only:before{
      content:"";
      position:absolute;
      inset:24px;
      border:2px solid rgba(124,58,237,.55);
      border-left-color:rgba(20,184,166,.58);
      border-radius:50%;
    }
    .timeline{
      position:relative;
      display:grid;
      gap:16px;
    }
    .timeline:before{
      content:"";
      position:absolute;
      left:22px;
      top:12px;
      bottom:12px;
      width:2px;
      background:linear-gradient(var(--primary),var(--secondary));
      opacity:.24;
    }
    .timeline-item{
      position:relative;
      padding:18px 18px 18px 62px;
      border-radius:24px;
      border:1px solid rgba(124,58,237,.11);
      background:#fff;
      box-shadow:0 12px 32px rgba(31,24,69,.05);
      transition:transform .22s ease,border-color .22s ease;
    }
    .timeline-item:hover{transform:translateY(-3px);border-color:var(--line-strong)}
    .timeline-dot{
      position:absolute;
      left:13px;
      top:21px;
      width:20px;
      height:20px;
      border-radius:50%;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      border:4px solid #fff;
      box-shadow:0 0 0 5px rgba(124,58,237,.10);
    }
    .info-panel{
      border-radius:var(--radius-lg);
      border:1px solid rgba(124,58,237,.12);
      background:
        radial-gradient(circle at 88% 10%,rgba(20,184,166,.12),transparent 24%),
        radial-gradient(circle at 8% 90%,rgba(124,58,237,.10),transparent 24%),
        #fff;
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .info-col{
      padding:26px;
      border-right:1px solid rgba(124,58,237,.10);
    }
    .info-col:last-child{border-right:0}
    .info-icon{
      width:46px;
      height:46px;
      border-radius:17px;
      background:linear-gradient(135deg,rgba(124,58,237,.14),rgba(20,184,166,.12));
      display:grid;
      place-items:center;
      margin-bottom:14px;
    }
    .info-icon svg{width:24px;height:24px;stroke:var(--primary)}
    .faq-wrap{display:grid;gap:14px}
    details.faq-item{
      border:1px solid rgba(124,58,237,.12);
      border-radius:24px;
      background:#fff;
      box-shadow:0 12px 30px rgba(31,24,69,.05);
      overflow:hidden;
      transition:border-color .25s ease,background .25s ease,box-shadow .25s ease;
    }
    details.faq-item[open]{
      border-color:var(--line-strong);
      background:linear-gradient(180deg,#fff,rgba(238,253,251,.65));
      box-shadow:0 18px 46px rgba(31,24,69,.09);
    }
    .faq-item summary{
      list-style:none;
      cursor:pointer;
      padding:20px 24px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
      font-weight:950;
      color:var(--ink);
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{
      content:"+";
      width:30px;
      height:30px;
      border-radius:50%;
      display:grid;
      place-items:center;
      flex:0 0 auto;
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      transition:transform .25s ease;
      line-height:1;
    }
    .faq-item[open] summary:after{transform:rotate(45deg)}
    .faq-item p{padding:0 24px 22px;color:var(--muted);margin:0}
    .cta-band{
      position:relative;
      overflow:hidden;
      border-radius:36px;
      padding:42px;
      background:
        radial-gradient(circle at 85% 20%,rgba(34,211,238,.24),transparent 30%),
        radial-gradient(circle at 12% 88%,rgba(124,58,237,.32),transparent 32%),
        linear-gradient(135deg,var(--dark),var(--dark-2));
      color:#fff;
      box-shadow:0 28px 70px rgba(17,18,26,.22);
    }
    .cta-band:before{
      content:"";
      position:absolute;
      inset:0;
      background-image:linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
      background-size:38px 38px;
      opacity:.32;
      pointer-events:none;
    }
    .cta-band > *{position:relative;z-index:1}
    .mini-form{
      display:grid;
      gap:12px;
      padding:18px;
      border:1px solid rgba(255,255,255,.14);
      border-radius:28px;
      background:rgba(255,255,255,.08);
      backdrop-filter:blur(14px);
    }
    .mini-form input,.mini-form textarea,.mini-form select{
      width:100%;
      border:1px solid rgba(255,255,255,.18);
      border-radius:16px;
      background:rgba(255,255,255,.92);
      color:var(--ink);
      min-height:50px;
      padding:0 15px;
      outline:none;
      transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;
    }
    .mini-form textarea{min-height:106px;padding-top:13px;resize:vertical}
    .mini-form input:focus,.mini-form textarea:focus,.mini-form select:focus{
      border-color:var(--secondary);
      box-shadow:0 0 0 4px rgba(34,211,238,.16);
      background:#fff;
    }
    .footer{
      margin-top:40px;
      background:
        radial-gradient(circle at 10% 0%,rgba(124,58,237,.10),transparent 28%),
        radial-gradient(circle at 90% 22%,rgba(20,184,166,.10),transparent 25%),
        #fff;
      border-top:1px solid rgba(124,58,237,.12);
    }
    .footer-top{padding:56px 0}
    .footer .brand{min-width:0}
    .footer-link{
      color:#5B6472;
      font-weight:800;
      transition:color .2s ease,transform .2s ease;
    }
    .footer-link:hover{color:var(--primary);transform:translateX(4px)}
    .footer-tags{display:flex;flex-wrap:wrap;gap:10px}
    .footer-tag{
      display:inline-flex;
      align-items:center;
      padding:7px 12px;
      border-radius:999px;
      background:linear-gradient(90deg,rgba(124,58,237,.09),rgba(20,184,166,.08));
      border:1px solid rgba(124,58,237,.12);
      color:#3F4654;
      font-size:13px;
      font-weight:900;
    }
    .copyright{
      border-top:1px solid rgba(124,58,237,.10);
      padding:18px 0;
      color:#667085;
      font-size:13px;
      font-weight:700;
      background:rgba(247,248,252,.58);
    }
    @media (max-width:1024px){
      :root{--nav-h:66px}
      .desktop-nav,.search-pill{display:none}
      .mobile-menu-btn{display:inline-block}
      .brand{min-width:0}
      .hero-statbar{grid-template-columns:repeat(2,minmax(0,1fr))}
      .section{padding:70px 0}
      .info-col{border-right:0;border-bottom:1px solid rgba(124,58,237,.10)}
      .info-col:last-child{border-bottom:0}
    }
    @media (max-width:768px){
      .site-container{width:min(100% - 32px,1200px)}
      .brand-sub{display:none}
      .brand-title{font-size:17px}
      .brand-mark{width:40px;height:40px;border-radius:15px}
      .nav-actions .btn-primary{display:none}
      .topic-hero{padding:38px 0 34px}
      .hero-card{padding:14px;border-radius:28px}
      .visual-img{min-height:220px;border-radius:22px}
      .visual-overlay{inset:14px;border-radius:22px}
      .floating-metric{left:24px;right:24px;bottom:24px}
      .metric-chip{padding:10px}
      .metric-chip strong{font-size:17px}
      .hero-statbar{grid-template-columns:1fr}
      .featured-media img{height:240px}
      .compact-item{grid-template-columns:78px 1fr;padding:12px;border-radius:22px}
      .compact-thumb{width:78px;height:78px;border-radius:18px}
      .cta-band{padding:28px;border-radius:30px}
      .section{padding:58px 0}
      .section-sm{padding:46px 0}
    }
    @media (max-width:520px){
      .site-container{width:min(100% - 28px,1200px)}
      .mobile-panel{width:min(100% - 28px,1200px)}
      .tag-row{gap:9px}
      .filter-tag{min-height:39px;padding:0 14px;font-size:13px}
      .floating-metric{grid-template-columns:1fr;gap:8px}
      .compact-item{grid-template-columns:1fr}
      .compact-thumb{width:100%;height:128px}
      .timeline:before{left:18px}
      .timeline-item{padding-left:52px}
      .timeline-dot{left:9px}
      .btn{width:100%}
      .cta-band .btn{width:100%}
    }