/* roulang page: index */
:root{
      --bg:#071018;
      --bg-2:#0B1623;
      --panel:#101D2A;
      --panel-2:#132638;
      --text:#EAF3F8;
      --muted:#9EB3C5;
      --muted-2:#6F879A;
      --line:rgba(120,220,255,.18);
      --line-strong:rgba(40,215,255,.42);
      --cyan:#28D7FF;
      --cyan-2:#6CEBFF;
      --purple:#7C5CFF;
      --green:#39E6A3;
      --amber:#FFB86B;
      --danger-soft:#FF6B8A;
      --radius-sm:12px;
      --radius:20px;
      --radius-lg:28px;
      --shadow:0 22px 60px rgba(0,0,0,.32);
      --glow:0 0 28px rgba(40,215,255,.18);
      --container:1200px;
      --ease:220ms ease;
      --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      background:
        radial-gradient(circle at 16% 10%,rgba(40,215,255,.12),transparent 30%),
        radial-gradient(circle at 84% 18%,rgba(124,92,255,.13),transparent 28%),
        linear-gradient(180deg,var(--bg),var(--bg-2) 45%,#050B12);
      color:var(--text);
      font-family:var(--font);
      line-height:1.8;
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      opacity:.18;
      background-image:
        linear-gradient(rgba(120,220,255,.08) 1px,transparent 1px),
        linear-gradient(90deg,rgba(120,220,255,.08) 1px,transparent 1px);
      background-size:48px 48px;
      mask-image:linear-gradient(to bottom,black,transparent 82%);
      z-index:-2;
    }
    a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background var(--ease),transform var(--ease)}
    a:hover,a:focus{color:var(--cyan)}
    img{max-width:100%;height:auto;display:block}
    button,input,select,textarea{font-family:inherit}
    ::selection{background:rgba(40,215,255,.28);color:#fff}
    .site-shell{position:relative;min-height:100vh}
    .container{
      width:min(calc(100% - 40px),var(--container));
      margin-inline:auto;
    }
    .section{padding:92px 0;position:relative}
    .section.tight{padding:68px 0}
    .section-head{max-width:760px;margin-bottom:34px}
    .section-kicker{
      display:inline-flex;
      gap:8px;
      align-items:center;
      color:var(--cyan-2);
      font-size:13px;
      letter-spacing:.08em;
      font-weight:700;
      margin-bottom:12px;
    }
    .section-kicker:before{
      content:"";
      width:8px;height:8px;border-radius:50%;
      background:var(--cyan);
      box-shadow:0 0 14px rgba(40,215,255,.8);
    }
    h1,h2,h3,h4,p{margin-top:0}
    h1{
      font-size:clamp(34px,5vw,56px);
      line-height:1.14;
      letter-spacing:-.04em;
      font-weight:800;
      margin-bottom:22px;
    }
    h2{
      font-size:clamp(28px,3.4vw,38px);
      line-height:1.22;
      letter-spacing:-.03em;
      font-weight:800;
      margin-bottom:14px;
    }
    h3{
      font-size:22px;
      line-height:1.35;
      font-weight:760;
      margin-bottom:10px;
    }
    p{color:var(--muted);font-size:16px}
    .lead{font-size:18px;color:#C6D7E4;max-width:720px}
    .top-wrap{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(5,12,20,.78);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(120,220,255,.15);
      box-shadow:0 12px 36px rgba(0,0,0,.28);
    }
    .top-wrap:after{
      content:"";
      position:absolute;
      left:0;right:0;bottom:-1px;height:1px;
      background:linear-gradient(90deg,transparent,rgba(40,215,255,.9),rgba(124,92,255,.55),transparent);
      opacity:.85;
    }
    .title-bar{background:transparent;padding:14px 0}
    .title-bar-title{font-weight:800;letter-spacing:.02em}
    .menu-icon:after{background:var(--cyan);box-shadow:0 7px 0 var(--cyan),0 14px 0 var(--cyan)}
    .top-bar{
      max-width:var(--container);
      margin:auto;
      min-height:78px;
      background:transparent;
      padding:0 20px;
    }
    .top-bar ul{background:transparent}
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      font-weight:850;
      letter-spacing:.01em;
      color:#fff;
      white-space:nowrap;
    }
    .brand-mark{
      width:42px;height:42px;border-radius:14px;
      display:grid;place-items:center;
      background:linear-gradient(135deg,rgba(40,215,255,.95),rgba(124,92,255,.85));
      color:#041018;
      box-shadow:0 0 24px rgba(40,215,255,.26);
      font-weight:900;
    }
    .nav-menu a{
      color:#BBD0DE;
      font-weight:650;
      padding:28px 15px;
      position:relative;
    }
    .nav-menu a:after{
      content:"";
      position:absolute;
      left:16px;right:16px;bottom:18px;height:2px;
      background:linear-gradient(90deg,var(--cyan),var(--purple));
      border-radius:99px;
      opacity:0;
      transform:scaleX(.2);
      transition:opacity var(--ease),transform var(--ease);
      box-shadow:0 0 14px rgba(40,215,255,.8);
    }
    .nav-menu a:hover:after,.nav-menu a.active:after{opacity:1;transform:scaleX(1)}
    .nav-menu a.active{color:#fff}
    .nav-cta{margin-left:14px}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:46px;
      padding:13px 21px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:800;
      line-height:1;
      cursor:pointer;
      transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),filter var(--ease);
    }
    .btn.primary{
      background:linear-gradient(135deg,var(--cyan),var(--green));
      color:#031018;
      box-shadow:0 12px 30px rgba(40,215,255,.22);
    }
    .btn.secondary{
      color:#DFF7FF;
      background:rgba(13,30,45,.58);
      border-color:rgba(40,215,255,.34);
      backdrop-filter:blur(10px);
    }
    .btn:hover{transform:translateY(-2px);filter:brightness(1.08)}
    .btn.primary:hover{box-shadow:0 18px 38px rgba(40,215,255,.32)}
    .btn.secondary:hover{background:rgba(40,215,255,.12);border-color:rgba(40,215,255,.6)}
    .btn:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
      outline:3px solid rgba(40,215,255,.34);
      outline-offset:3px;
    }
    .hero{
      padding:118px 0 88px;
      position:relative;
      overflow:hidden;
    }
    .hero:before{
      content:"";
      position:absolute;
      inset:8% -10% auto auto;
      width:520px;height:520px;
      background:radial-gradient(circle,rgba(40,215,255,.16),transparent 60%);
      filter:blur(8px);
      pointer-events:none;
    }
    .hero-badge{
      display:inline-flex;
      align-items:center;
      gap:10px;
      padding:9px 13px;
      border:1px solid var(--line);
      border-radius:999px;
      background:rgba(13,30,45,.54);
      color:#CDEAF5;
      font-size:13px;
      font-weight:700;
      margin-bottom:22px;
      backdrop-filter:blur(12px);
    }
    .hero-badge span{
      width:8px;height:8px;border-radius:50%;
      background:var(--green);
      box-shadow:0 0 16px rgba(57,230,163,.85);
    }
    .hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}
    .hero-note{
      display:flex;
      gap:14px;
      flex-wrap:wrap;
      margin-top:28px;
      color:var(--muted);
      font-size:14px;
    }
    .hero-note strong{color:#fff}
    .dashboard{
      position:relative;
      padding:24px;
      border-radius:var(--radius-lg);
      background:linear-gradient(180deg,rgba(19,38,56,.82),rgba(10,23,35,.72));
      border:1px solid rgba(120,220,255,.24);
      box-shadow:var(--shadow),var(--glow);
      overflow:hidden;
      backdrop-filter:blur(16px);
    }
    .dashboard:before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(115deg,transparent 20%,rgba(255,255,255,.07) 48%,transparent 68%);
      transform:translateX(-70%);
      animation:sweep 7s infinite;
      pointer-events:none;
    }
    @keyframes sweep{
      0%,45%{transform:translateX(-80%)}
      70%,100%{transform:translateX(85%)}
    }
    .dash-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
    .dot-row{display:flex;gap:7px}
    .dot-row i{width:10px;height:10px;border-radius:50%;background:rgba(158,179,197,.5)}
    .dot-row i:nth-child(1){background:var(--danger-soft)}
    .dot-row i:nth-child(2){background:var(--amber)}
    .dot-row i:nth-child(3){background:var(--green)}
    .dash-title{font-weight:800;color:#fff}
    .risk-ring{
      margin:8px auto 22px;
      width:210px;height:210px;border-radius:50%;
      display:grid;place-items:center;
      background:
        radial-gradient(circle at center,#0D1E2D 0 48%,transparent 49%),
        conic-gradient(var(--green) 0 42%,var(--cyan) 42% 72%,rgba(124,92,255,.8) 72% 92%,rgba(255,184,107,.55) 92%);
      box-shadow:inset 0 0 32px rgba(0,0,0,.4),0 0 36px rgba(40,215,255,.14);
    }
    .risk-ring strong{font-size:40px;line-height:1;color:#fff}
    .risk-ring span{display:block;text-align:center;color:var(--muted);font-size:13px;margin-top:8px}
    .status-list{display:grid;gap:12px}
    .status-item{
      display:flex;justify-content:space-between;gap:12px;align-items:center;
      padding:14px 15px;border-radius:16px;
      background:rgba(7,16,24,.56);
      border:1px solid rgba(120,220,255,.14);
    }
    .status-item b{color:#fff}
    .status-item em{font-style:normal;color:var(--green);font-weight:800}
    .glass-card{
      background:rgba(13,30,45,.62);
      backdrop-filter:blur(14px);
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:0 18px 46px rgba(0,0,0,.22);
      transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease),background var(--ease);
      position:relative;
      overflow:hidden;
    }
    .glass-card:hover{
      transform:translateY(-4px);
      border-color:var(--line-strong);
      box-shadow:0 22px 58px rgba(0,0,0,.28),0 0 26px rgba(40,215,255,.12);
    }
    .pain-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}
    .pain-card{padding:24px;display:grid;grid-template-columns:54px 1fr;gap:18px}
    .pain-card:nth-child(even){margin-top:34px}
    .num{
      width:46px;height:46px;border-radius:15px;
      display:grid;place-items:center;
      color:#06131B;
      font-weight:900;
      background:linear-gradient(135deg,var(--cyan),var(--green));
      box-shadow:0 0 22px rgba(40,215,255,.2);
    }
    .architecture{
      display:grid;
      grid-template-columns:.86fr 1.14fr;
      gap:34px;
      align-items:center;
    }
    .layer-map{display:flex;flex-direction:column;gap:14px;position:relative}
    .layer-map:before{
      content:"";position:absolute;left:27px;top:30px;bottom:30px;width:1px;
      background:linear-gradient(var(--cyan),var(--purple));
      box-shadow:0 0 18px rgba(40,215,255,.5);
    }
    .layer{
      display:grid;grid-template-columns:56px 1fr;gap:16px;align-items:center;
      padding:16px;
      border-radius:18px;
      background:rgba(13,30,45,.68);
      border:1px solid var(--line);
      position:relative;
    }
    .layer-icon{
      width:40px;height:40px;border-radius:13px;
      display:grid;place-items:center;
      background:rgba(40,215,255,.12);
      border:1px solid rgba(40,215,255,.25);
      color:var(--cyan);
      font-weight:900;
      z-index:1;
    }
    .layer h3{font-size:18px;margin-bottom:2px}
    .metrics{
      background:linear-gradient(180deg,rgba(8,17,27,.92),rgba(12,27,40,.82));
      border-block:1px solid rgba(120,220,255,.12);
    }
    .metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
    .metric-card{padding:26px}
    .metric-value{
      font-size:40px;
      font-weight:900;
      color:#fff;
      line-height:1;
      margin-bottom:12px;
      letter-spacing:-.03em;
    }
    .metric-value small{font-size:16px;color:var(--cyan);margin-left:4px}
    .metric-line{
      height:34px;margin-top:16px;border-radius:10px;
      background:
        linear-gradient(135deg,transparent 10%,rgba(40,215,255,.18) 11% 18%,transparent 19% 38%,rgba(57,230,163,.18) 39% 48%,transparent 49%),
        rgba(255,255,255,.03);
    }
    .case-layout{display:grid;grid-template-columns:1fr 1fr;gap:22px}
    .case-card{padding:26px}
    .case-card.wide{grid-column:span 2;display:grid;grid-template-columns:1fr 1.2fr;gap:26px;align-items:center}
    .badge-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:16px}
    .badge{
      display:inline-flex;align-items:center;
      min-height:28px;
      padding:6px 11px;
      border-radius:999px;
      font-size:12px;
      font-weight:800;
      letter-spacing:.04em;
      color:#DFF7FF;
      background:rgba(40,215,255,.11);
      border:1px solid rgba(40,215,255,.22);
    }
    .badge.purple{background:rgba(124,92,255,.13);border-color:rgba(124,92,255,.28)}
    .quote{font-size:18px;color:#DCECF5;line-height:1.75}
    .faq-wrap .accordion{background:transparent}
    .faq-wrap .accordion-item{
      margin-bottom:12px;
      border:1px solid var(--line);
      border-radius:18px;
      overflow:hidden;
      background:rgba(13,30,45,.58);
      backdrop-filter:blur(12px);
    }
    .faq-wrap .accordion-title{
      color:#F5FBFF;
      border:0;
      padding:20px 52px 20px 24px;
      font-size:16px;
      font-weight:800;
      background:transparent;
    }
    .faq-wrap .accordion-title:before{
      right:22px;
      color:var(--cyan);
      font-size:24px;
      margin-top:-12px;
    }
    .faq-wrap .accordion-title:after{
      content:"";
      width:8px;height:8px;border-radius:50%;
      background:var(--cyan);
      box-shadow:0 0 14px rgba(40,215,255,.75);
      position:absolute;left:10px;top:50%;transform:translateY(-50%);
    }
    .faq-wrap .accordion-title:hover,.faq-wrap .accordion-title:focus{background:rgba(40,215,255,.06);color:#fff}
    .faq-wrap .is-active .accordion-title{border-bottom:1px solid rgba(40,215,255,.18)}
    .faq-wrap .accordion-content{
      border:0;
      background:rgba(7,16,24,.28);
      color:var(--muted);
      padding:18px 24px 24px;
    }
    .cta-panel{
      padding:42px;
      border-radius:var(--radius-lg);
      background:
        radial-gradient(circle at 88% 20%,rgba(40,215,255,.18),transparent 30%),
        linear-gradient(135deg,rgba(19,38,56,.86),rgba(8,17,27,.88));
      border:1px solid rgba(120,220,255,.24);
      box-shadow:var(--shadow),var(--glow);
      display:grid;
      grid-template-columns:1.2fr auto;
      gap:26px;
      align-items:center;
    }
    .cta-panel h2{margin-bottom:10px}
    .cta-actions{display:flex;gap:14px;flex-wrap:wrap;justify-content:flex-end}
    .footer{
      background:#040910;
      border-top:1px solid rgba(120,220,255,.16);
      position:relative;
      padding:58px 0 24px;
    }
    .footer:before{
      content:"";position:absolute;left:0;right:0;top:0;height:1px;
      background:linear-gradient(90deg,transparent,rgba(40,215,255,.68),rgba(124,92,255,.5),transparent);
    }
    .footer-grid{display:grid;grid-template-columns:1.3fr .8fr .8fr 1fr;gap:30px}
    .footer h3,.footer h4{color:#fff}
    .footer p,.footer a,.footer li{color:#92A8B9;font-size:14px}
    .footer ul{list-style:none;margin:0;padding:0;display:grid;gap:9px}
    .footer a:hover{color:var(--cyan)}
    .copyright{
      margin-top:36px;
      padding-top:18px;
      border-top:1px solid rgba(120,220,255,.1);
      color:#7890A2;
      font-size:13px;
      display:flex;
      justify-content:space-between;
      gap:14px;
      flex-wrap:wrap;
    }
    .back-top{
      position:fixed;right:18px;bottom:18px;z-index:40;
      width:44px;height:44px;border-radius:16px;border:1px solid rgba(40,215,255,.3);
      background:rgba(13,30,45,.72);color:var(--cyan);
      display:grid;place-items:center;
      box-shadow:0 14px 30px rgba(0,0,0,.28);
      opacity:0;pointer-events:none;transform:translateY(10px);
    }
    .back-top.show{opacity:1;pointer-events:auto;transform:translateY(0)}
    @media (max-width:1024px){
      .top-bar{padding:0 16px}
      .nav-menu a{padding:18px 12px}
      .hero{padding:82px 0 70px}
      .architecture,.case-card.wide,.cta-panel{grid-template-columns:1fr}
      .metric-grid{grid-template-columns:repeat(2,1fr)}
      .cta-actions{justify-content:flex-start}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      .container{width:min(calc(100% - 28px),var(--container))}
      .top-wrap{position:sticky}
      .top-bar{display:none}
      .top-bar.open{display:block;padding-bottom:16px}
      .top-bar-left,.top-bar-right{width:100%}
      .nav-menu{display:block;width:100%;padding:8px 0}
      .nav-menu li{display:block}
      .nav-menu a{min-height:44px;padding:13px 2px}
      .nav-menu a:after{left:2px;right:auto;width:34px;bottom:7px}
      .nav-cta{margin:10px 0 0}
      .nav-cta .btn{width:100%}
      .section{padding:62px 0}
      .hero{padding:60px 0 56px}
      .hero-actions .btn{width:100%}
      .dashboard{margin-top:24px;padding:18px}
      .risk-ring{width:178px;height:178px}
      .pain-grid,.case-layout{grid-template-columns:1fr}
      .pain-card:nth-child(even){margin-top:0}
      .case-card.wide{grid-column:auto}
      .metric-grid{grid-template-columns:1fr}
      .cta-panel{padding:28px}
      .cta-actions .btn{width:100%}
      .footer-grid{grid-template-columns:1fr}
    }
    @media (max-width:520px){
      h1{font-size:32px}
      h2{font-size:27px}
      .pain-card{grid-template-columns:1fr;gap:14px}
      .status-item{align-items:flex-start;flex-direction:column}
      .layer{grid-template-columns:44px 1fr;padding:14px}
      .metric-value{font-size:34px}
      .footer{padding-top:44px}
      .back-top{display:none}
    }

/* roulang page: category1 */
:root {
      --bg-0: #071018;
      --bg-1: #0b1623;
      --bg-2: #101d2a;
      --bg-3: #132638;
      --panel: rgba(13, 30, 45, .68);
      --panel-strong: rgba(17, 40, 60, .86);
      --text: #eaf3f8;
      --muted: #9eb3c5;
      --muted-2: #6f879a;
      --line: rgba(120, 220, 255, .18);
      --line-strong: rgba(40, 215, 255, .42);
      --primary: #28d7ff;
      --primary-2: #39e6a3;
      --violet: #7c5cff;
      --warning: #ffb86b;
      --shadow: 0 22px 70px rgba(0, 0, 0, .34);
      --glow: 0 0 34px rgba(40, 215, 255, .18);
      --radius-sm: 12px;
      --radius: 20px;
      --radius-lg: 28px;
      --container: 1200px;
      --speed: 240ms ease;
      --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: var(--font);
      color: var(--text);
      background:
        radial-gradient(circle at 18% 6%, rgba(40, 215, 255, .14), transparent 32%),
        radial-gradient(circle at 82% 12%, rgba(124, 92, 255, .13), transparent 34%),
        linear-gradient(180deg, var(--bg-0) 0%, var(--bg-1) 44%, #08131d 100%);
      line-height: 1.8;
      overflow-x: hidden;
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      opacity: .18;
      background-image:
        linear-gradient(rgba(120, 220, 255, .08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(120, 220, 255, .08) 1px, transparent 1px);
      background-size: 48px 48px;
      mask-image: linear-gradient(to bottom, #000, transparent 75%);
      z-index: -1;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color var(--speed), border-color var(--speed), background var(--speed), transform var(--speed), box-shadow var(--speed);
    }

    a:hover,
    a:focus {
      color: var(--primary);
    }

    img,
    svg {
      max-width: 100%;
      height: auto;
      display: block;
    }

    button,
    input,
    textarea,
    select {
      font-family: inherit;
    }

    .container {
      width: min(calc(100% - 40px), var(--container));
      margin: 0 auto;
    }

    .section {
      padding: 78px 0;
      position: relative;
    }

    .section.compact {
      padding: 58px 0;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 14px;
      padding: 7px 12px;
      border: 1px solid var(--line);
      border-radius: 999px;
      color: var(--primary);
      background: rgba(40, 215, 255, .07);
      font-size: 13px;
      letter-spacing: .08em;
      font-weight: 700;
    }

    .eyebrow::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--primary-2);
      box-shadow: 0 0 14px rgba(57, 230, 163, .8);
    }

    h1,
    h2,
    h3,
    h4,
    p {
      margin-top: 0;
    }

    h1 {
      font-size: clamp(32px, 5vw, 52px);
      line-height: 1.18;
      letter-spacing: -.04em;
      font-weight: 800;
      margin-bottom: 18px;
    }

    h2 {
      font-size: clamp(28px, 3.4vw, 38px);
      line-height: 1.25;
      letter-spacing: -.03em;
      font-weight: 800;
      margin-bottom: 16px;
    }

    h3 {
      font-size: 22px;
      line-height: 1.35;
      font-weight: 750;
      margin-bottom: 10px;
    }

    h4 {
      font-size: 16px;
      font-weight: 750;
      margin-bottom: 14px;
    }

    p {
      color: var(--muted);
      font-size: 16px;
    }

    .lead {
      font-size: 18px;
      color: #c3d4df;
      max-width: 760px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 44px;
      padding: 12px 20px;
      border-radius: 999px;
      border: 1px solid transparent;
      font-size: 15px;
      font-weight: 750;
      line-height: 1;
      cursor: pointer;
      gap: 8px;
      white-space: nowrap;
    }

    .btn.primary {
      background: linear-gradient(135deg, var(--primary), var(--primary-2));
      color: #06121a;
      box-shadow: 0 0 28px rgba(40, 215, 255, .28);
    }

    .btn.primary:hover,
    .btn.primary:focus {
      color: #06121a;
      transform: translateY(-2px);
      box-shadow: 0 0 38px rgba(40, 215, 255, .42);
      filter: brightness(1.05);
    }

    .btn.ghost {
      color: var(--text);
      border-color: var(--line-strong);
      background: rgba(13, 30, 45, .48);
    }

    .btn.ghost:hover,
    .btn.ghost:focus {
      background: rgba(40, 215, 255, .12);
      color: var(--primary);
      transform: translateY(-2px);
    }

    .btn:focus-visible,
    .menu-icon:focus-visible,
    input:focus-visible,
    select:focus-visible,
    textarea:focus-visible {
      outline: 3px solid rgba(40, 215, 255, .34);
      outline-offset: 3px;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      min-height: 26px;
      padding: 5px 11px;
      border-radius: 999px;
      border: 1px solid rgba(120, 220, 255, .2);
      background: rgba(40, 215, 255, .08);
      color: #bff3ff;
      font-size: 12px;
      font-weight: 750;
      letter-spacing: .03em;
    }

    .badge.violet {
      background: rgba(124, 92, 255, .12);
      border-color: rgba(124, 92, 255, .28);
      color: #d9d1ff;
    }

    .badge.green {
      background: rgba(57, 230, 163, .1);
      border-color: rgba(57, 230, 163, .28);
      color: #c9ffe9;
    }

    .top-wrap {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(5, 12, 20, .78);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(120, 220, 255, .12);
      box-shadow: 0 18px 45px rgba(0, 0, 0, .22);
    }

    .top-wrap::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: -1px;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(40, 215, 255, .78), rgba(124, 92, 255, .5), transparent);
    }

    .title-bar {
      background: transparent;
      padding: 14px 0;
    }

    .top-bar {
      max-width: var(--container);
      min-height: 78px;
      margin: 0 auto;
      padding: 0 20px;
      background: transparent;
    }

    .top-bar ul {
      background: transparent;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 11px;
      color: var(--text);
      font-weight: 800;
      letter-spacing: -.02em;
      font-size: 18px;
    }

    .brand:hover {
      color: var(--text);
    }

    .brand-mark {
      display: inline-grid;
      place-items: center;
      width: 36px;
      height: 36px;
      border-radius: 12px;
      color: #06121a;
      background: linear-gradient(135deg, var(--primary), var(--primary-2));
      box-shadow: 0 0 24px rgba(40, 215, 255, .28);
      font-weight: 900;
    }

    .nav-menu {
      gap: 4px;
    }

    .nav-menu a:not(.btn) {
      position: relative;
      min-height: 44px;
      display: inline-flex;
      align-items: center;
      padding: 10px 13px;
      color: #c7d6df;
      font-size: 15px;
      font-weight: 650;
    }

    .nav-menu a:not(.btn)::after {
      content: "";
      position: absolute;
      left: 14px;
      right: 14px;
      bottom: 4px;
      height: 2px;
      border-radius: 2px;
      transform: scaleX(0);
      transform-origin: center;
      background: var(--primary);
      box-shadow: 0 0 12px rgba(40, 215, 255, .9);
      transition: transform var(--speed);
    }

    .nav-menu a:not(.btn):hover,
    .nav-menu a:not(.btn).active {
      color: #fff;
    }

    .nav-menu a:not(.btn):hover::after,
    .nav-menu a:not(.btn).active::after {
      transform: scaleX(1);
    }

    .nav-cta {
      margin-left: 10px;
    }

    .menu-icon::after {
      background: #dff8ff;
      box-shadow: 0 7px 0 #dff8ff, 0 14px 0 #dff8ff;
    }

    .page-hero {
      padding: 84px 0 52px;
      position: relative;
      overflow: hidden;
      background:
        radial-gradient(circle at 80% 15%, rgba(40, 215, 255, .16), transparent 28%),
        radial-gradient(circle at 12% 62%, rgba(124, 92, 255, .12), transparent 30%);
    }

    .page-hero::after {
      content: "";
      position: absolute;
      inset: auto -10% -90px -10%;
      height: 180px;
      background: linear-gradient(90deg, transparent, rgba(40, 215, 255, .12), transparent);
      filter: blur(16px);
      transform: rotate(-2deg);
    }

    .breadcrumb {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px;
      margin-bottom: 24px;
      color: var(--muted-2);
      font-size: 14px;
    }

    .breadcrumb a {
      color: #b8c8d4;
    }

    .breadcrumb a:hover {
      color: var(--primary);
    }

    .hero-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 26px;
    }

    .hero-panel {
      position: relative;
      padding: 24px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--line);
      background: linear-gradient(145deg, rgba(13, 30, 45, .78), rgba(13, 30, 45, .45));
      backdrop-filter: blur(14px);
      box-shadow: var(--shadow), var(--glow);
      overflow: hidden;
    }

    .hero-panel::before {
      content: "";
      position: absolute;
      inset: 0;
      opacity: .32;
      background:
        linear-gradient(135deg, transparent 0 42%, rgba(40, 215, 255, .18) 43%, transparent 44%),
        radial-gradient(circle at 86% 12%, rgba(57, 230, 163, .18), transparent 26%);
      pointer-events: none;
    }

    .signal-list {
      position: relative;
      display: grid;
      gap: 14px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .signal-list li {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 14px 15px;
      border-radius: 16px;
      border: 1px solid rgba(120, 220, 255, .14);
      background: rgba(7, 16, 24, .46);
    }

    .signal-list strong {
      color: #fff;
      font-size: 14px;
    }

    .signal-list span {
      color: var(--primary-2);
      font-weight: 800;
      font-size: 13px;
    }

    .layout-grid {
      align-items: start;
    }

    .topic-nav {
      position: sticky;
      top: 106px;
      padding: 20px;
      border-radius: var(--radius);
      border: 1px solid var(--line);
      background: rgba(13, 30, 45, .6);
      backdrop-filter: blur(14px);
      box-shadow: 0 16px 48px rgba(0, 0, 0, .2);
    }

    .topic-nav h3 {
      font-size: 16px;
      color: #fff;
      margin-bottom: 14px;
    }

    .topic-nav ul {
      list-style: none;
      margin: 0;
      padding: 0;
      display: grid;
      gap: 8px;
    }

    .topic-nav a {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 11px 12px;
      border-radius: 13px;
      color: #bdd0dc;
      background: rgba(255, 255, 255, .02);
      border: 1px solid transparent;
      font-size: 14px;
      font-weight: 650;
    }

    .topic-nav a::after {
      content: "›";
      color: var(--primary);
      opacity: .7;
    }

    .topic-nav a:hover,
    .topic-nav a.active {
      border-color: var(--line-strong);
      background: rgba(40, 215, 255, .08);
      color: #fff;
    }

    .section-head {
      display: flex;
      justify-content: space-between;
      gap: 24px;
      align-items: end;
      margin-bottom: 26px;
    }

    .section-head p {
      max-width: 620px;
      margin-bottom: 0;
    }

    .article-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 18px;
    }

    .article-card,
    .feature-banner,
    .note-card,
    .faq-wrap,
    .cta-panel {
      position: relative;
      border: 1px solid var(--line);
      background: var(--panel);
      backdrop-filter: blur(14px);
      border-radius: var(--radius);
      box-shadow: 0 16px 42px rgba(0, 0, 0, .18);
      overflow: hidden;
      transition: transform var(--speed), border-color var(--speed), box-shadow var(--speed), background var(--speed);
    }

    .article-card::before,
    .note-card::before,
    .feature-banner::before {
      content: "";
      position: absolute;
      inset: 0;
      opacity: 0;
      background: linear-gradient(115deg, transparent 0 36%, rgba(40, 215, 255, .1) 50%, transparent 64%);
      transform: translateX(-40%);
      transition: opacity var(--speed), transform 520ms ease;
      pointer-events: none;
    }

    .article-card:hover,
    .note-card:hover,
    .feature-banner:hover {
      transform: translateY(-4px);
      border-color: var(--line-strong);
      box-shadow: var(--shadow), var(--glow);
      background: rgba(17, 40, 60, .78);
    }

    .article-card:hover::before,
    .note-card:hover::before,
    .feature-banner:hover::before {
      opacity: 1;
      transform: translateX(40%);
    }

    .article-card {
      min-height: 246px;
      padding: 24px;
      display: flex;
      flex-direction: column;
    }

    .article-card h3 {
      margin-top: 18px;
    }

    .article-card p {
      margin-bottom: 18px;
      font-size: 15px;
      flex: 1;
    }

    .article-meta {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 10px;
      color: var(--muted-2);
      font-size: 13px;
      border-top: 1px solid rgba(120, 220, 255, .1);
      padding-top: 15px;
    }

    .article-meta span + span::before {
      content: "";
      display: inline-block;
      width: 4px;
      height: 4px;
      border-radius: 50%;
      background: rgba(120, 220, 255, .45);
      margin-right: 10px;
      vertical-align: middle;
    }

    .feature-banner {
      padding: 30px;
      background:
        radial-gradient(circle at 88% 12%, rgba(57, 230, 163, .16), transparent 32%),
        linear-gradient(145deg, rgba(19, 38, 56, .82), rgba(13, 30, 45, .62));
    }

    .feature-list {
      margin: 0;
      padding: 0;
      list-style: none;
      display: grid;
      gap: 12px;
    }

    .feature-list li {
      padding: 14px 14px 14px 40px;
      border-radius: 15px;
      background: rgba(7, 16, 24, .42);
      border: 1px solid rgba(120, 220, 255, .12);
      color: #c6d6df;
      position: relative;
      font-size: 15px;
    }

    .feature-list li::before {
      content: "";
      position: absolute;
      left: 16px;
      top: 22px;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--primary);
      box-shadow: 0 0 14px rgba(40, 215, 255, .75);
    }

    .note-grid {
      display: grid;
      grid-template-columns: 1.15fr .85fr;
      gap: 18px;
    }

    .note-card {
      padding: 26px;
    }

    .note-card.large {
      min-height: 300px;
      background:
        linear-gradient(145deg, rgba(40, 215, 255, .08), transparent 46%),
        rgba(13, 30, 45, .68);
    }

    .check-list {
      list-style: none;
      padding: 0;
      margin: 20px 0 0;
      display: grid;
      gap: 12px;
    }

    .check-list li {
      position: relative;
      padding-left: 28px;
      color: #c7d7e0;
      font-size: 15px;
    }

    .check-list li::before {
      content: "✓";
      position: absolute;
      left: 0;
      top: 0;
      color: var(--primary-2);
      font-weight: 900;
    }

    .mini-stat {
      display: grid;
      gap: 12px;
      margin-top: 20px;
    }

    .mini-stat .item {
      padding: 14px;
      border-radius: 16px;
      background: rgba(7, 16, 24, .42);
      border: 1px solid rgba(120, 220, 255, .12);
    }

    .mini-stat strong {
      display: block;
      color: #fff;
      font-size: 22px;
      line-height: 1.2;
    }

    .mini-stat span {
      color: var(--muted);
      font-size: 13px;
    }

    .accordion {
      background: transparent;
    }

    .faq-wrap {
      padding: 8px;
    }

    .accordion-item {
      margin-bottom: 10px;
      border: 1px solid rgba(120, 220, 255, .12);
      border-radius: 16px;
      overflow: hidden;
      background: rgba(7, 16, 24, .34);
    }

    .accordion-title {
      position: relative;
      padding: 18px 48px 18px 42px;
      border: 0;
      color: var(--text);
      font-size: 16px;
      font-weight: 750;
      line-height: 1.4;
      background: transparent;
    }

    .accordion-title::before {
      right: 18px;
      margin-top: -12px;
      color: var(--primary);
      font-size: 24px;
      transition: transform var(--speed);
    }

    .accordion-title::after {
      content: "";
      position: absolute;
      left: 18px;
      top: 24px;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--primary);
      box-shadow: 0 0 12px rgba(40, 215, 255, .85);
    }

    .accordion-title:hover,
    .accordion-title:focus {
      background: rgba(40, 215, 255, .06);
      color: #fff;
    }

    .accordion-content {
      border: 0;
      padding: 0 42px 20px;
      background: transparent;
      color: var(--muted);
    }

    .is-active > .accordion-title {
      border-bottom: 1px solid rgba(40, 215, 255, .16);
      color: #fff;
    }

    .is-active > .accordion-title::before {
      transform: rotate(45deg);
    }

    .cta-panel {
      padding: 34px;
      background:
        radial-gradient(circle at 82% 18%, rgba(40, 215, 255, .18), transparent 32%),
        linear-gradient(135deg, rgba(16, 29, 42, .94), rgba(8, 19, 29, .92));
      border-radius: var(--radius-lg);
    }

    .cta-actions {
      display: flex;
      gap: 12px;
      justify-content: flex-end;
      flex-wrap: wrap;
    }

    .footer {
      padding: 62px 0 28px;
      background: #050c14;
      border-top: 1px solid rgba(120, 220, 255, .12);
      position: relative;
    }

    .footer::before {
      content: "";
      position: absolute;
      top: -1px;
      left: 0;
      right: 0;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(40, 215, 255, .62), rgba(124, 92, 255, .42), transparent);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr .8fr .9fr 1.1fr;
      gap: 30px;
      margin-bottom: 34px;
    }

    .footer p,
    .footer li {
      color: var(--muted);
      font-size: 14px;
    }

    .footer ul {
      margin: 0;
      padding: 0;
      list-style: none;
      display: grid;
      gap: 9px;
    }

    .footer a {
      color: var(--muted);
    }

    .footer a:hover {
      color: var(--primary);
    }

    .copyright {
      display: flex;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
      padding-top: 20px;
      border-top: 1px solid rgba(120, 220, 255, .1);
      color: var(--muted-2);
      font-size: 13px;
    }

    .back-top {
      position: fixed;
      right: 20px;
      bottom: 22px;
      width: 44px;
      height: 44px;
      display: grid;
      place-items: center;
      border-radius: 16px;
      border: 1px solid var(--line);
      background: rgba(13, 30, 45, .74);
      backdrop-filter: blur(12px);
      color: var(--primary);
      box-shadow: var(--glow);
      z-index: 40;
    }

    .back-top:hover {
      transform: translateY(-3px);
      border-color: var(--line-strong);
      color: #fff;
    }

    @media (min-width: 1200px) {
      .article-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
      }
    }

    @media (max-width: 1024px) {
      .top-bar {
        padding: 0 20px;
      }

      .section {
        padding: 64px 0;
      }

      .topic-nav {
        position: static;
        margin-bottom: 22px;
      }

      .topic-nav ul {
        display: flex;
        overflow-x: auto;
        padding-bottom: 4px;
        scrollbar-width: none;
      }

      .topic-nav ul::-webkit-scrollbar {
        display: none;
      }

      .topic-nav a {
        white-space: nowrap;
      }

      .note-grid,
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .container {
        width: min(calc(100% - 28px), var(--container));
      }

      .top-bar {
        display: none;
        padding: 12px 14px 18px;
        background: rgba(5, 12, 20, .94);
        backdrop-filter: blur(16px);
      }

      .top-bar.expanded {
        display: block;
      }

      .top-bar-left,
      .top-bar-right,
      .top-bar .menu {
        width: 100%;
      }

      .top-bar-left {
        display: none;
      }

      .nav-menu {
        display: grid;
        gap: 8px;
      }

      .nav-menu a:not(.btn),
      .nav-cta .btn {
        width: 100%;
        justify-content: flex-start;
        min-height: 46px;
      }

      .nav-cta {
        margin-left: 0;
        margin-top: 4px;
      }

      .page-hero {
        padding: 58px 0 40px;
      }

      .section-head {
        display: block;
      }

      .article-grid,
      .note-grid,
      .footer-grid {
        grid-template-columns: 1fr;
      }

      .hero-panel {
        margin-top: 20px;
      }

      .cta-actions {
        justify-content: flex-start;
      }

      .cta-actions .btn {
        width: 100%;
      }

      .copyright {
        display: grid;
      }
    }

    @media (max-width: 520px) {
      body::before {
        opacity: .1;
      }

      h1 {
        font-size: 32px;
      }

      .section {
        padding: 52px 0;
      }

      .article-card,
      .feature-banner,
      .note-card,
      .cta-panel {
        padding: 20px;
        border-radius: 18px;
      }

      .accordion-title {
        padding: 16px 42px 16px 36px;
        font-size: 15px;
      }

      .accordion-title::after {
        left: 15px;
        top: 22px;
      }

      .accordion-content {
        padding: 0 20px 18px 36px;
      }

      .back-top {
        display: none;
      }
    }

/* roulang page: category2 */
:root{
      --bg:#071018;
      --bg-2:#0B1623;
      --surface:#101D2A;
      --surface-2:#132638;
      --glass:rgba(13,30,45,.68);
      --glass-strong:rgba(15,39,58,.82);
      --text:#EAF3F8;
      --muted:#9EB3C5;
      --muted-2:#71889A;
      --line:rgba(120,220,255,.18);
      --line-strong:rgba(40,215,255,.44);
      --cyan:#28D7FF;
      --cyan-2:#71F0FF;
      --purple:#7C5CFF;
      --green:#39E6A3;
      --amber:#FFB86B;
      --danger-soft:#778391;
      --radius:22px;
      --radius-lg:30px;
      --shadow:0 22px 70px rgba(0,0,0,.36);
      --glow:0 0 32px rgba(40,215,255,.18);
      --container:1200px;
      --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font);
      color:var(--text);
      background:
        radial-gradient(circle at 12% 8%, rgba(40,215,255,.13), transparent 30%),
        radial-gradient(circle at 88% 14%, rgba(124,92,255,.13), transparent 34%),
        linear-gradient(180deg, var(--bg), var(--bg-2) 52%, #050B12);
      line-height:1.8;
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background-image:
        linear-gradient(rgba(120,220,255,.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(120,220,255,.04) 1px, transparent 1px);
      background-size:44px 44px;
      mask-image:linear-gradient(to bottom, rgba(0,0,0,.75), rgba(0,0,0,.15));
      z-index:-2;
    }
    a{color:inherit;text-decoration:none;transition:color .22s ease, border-color .22s ease, background .22s ease, transform .22s ease}
    a:hover,a:focus{color:var(--cyan)}
    img{max-width:100%;height:auto;display:block}
    button,input,select,textarea{font-family:inherit}
    button,.button,.btn{appearance:none;border:0;cursor:pointer}
    :focus-visible{outline:2px solid var(--cyan);outline-offset:4px}
    .container{
      width:min(calc(100% - 40px), var(--container));
      margin:0 auto;
    }
    .section{padding:84px 0;position:relative}
    .section.compact{padding:64px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border:1px solid var(--line);
      border-radius:999px;
      color:var(--cyan-2);
      background:rgba(40,215,255,.08);
      font-size:13px;
      font-weight:700;
      letter-spacing:.04em;
      margin-bottom:18px;
    }
    .eyebrow:before{
      content:"";
      width:7px;height:7px;border-radius:50%;
      background:var(--green);
      box-shadow:0 0 14px rgba(57,230,163,.8);
    }
    h1,h2,h3,h4,p{margin-top:0}
    h1{
      font-size:clamp(32px,5vw,54px);
      line-height:1.16;
      font-weight:800;
      letter-spacing:-.04em;
      margin-bottom:22px;
    }
    h2{
      font-size:clamp(28px,3.6vw,38px);
      line-height:1.22;
      font-weight:800;
      letter-spacing:-.03em;
      margin-bottom:16px;
    }
    h3{
      font-size:22px;
      line-height:1.35;
      font-weight:760;
      margin-bottom:10px;
    }
    p{color:var(--muted);font-size:16px}
    .lead{font-size:18px;color:#C9D9E5;max-width:680px}
    .muted{color:var(--muted)}
    .top-wrap{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(5,12,20,.78);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(120,220,255,.12);
      box-shadow:0 18px 45px rgba(0,0,0,.22);
    }
    .top-wrap:after{
      content:"";
      position:absolute;
      left:0;right:0;bottom:0;height:1px;
      background:linear-gradient(90deg, transparent, rgba(40,215,255,.75), rgba(124,92,255,.45), transparent);
    }
    .title-bar{
      background:transparent;
      padding:14px 0;
    }
    .top-bar{
      width:min(calc(100% - 40px), var(--container));
      margin:0 auto;
      min-height:78px;
      padding:0;
      background:transparent;
    }
    .top-bar ul{background:transparent}
    .brand{
      display:inline-flex;
      align-items:center;
      gap:11px;
      color:var(--text);
      font-weight:800;
      letter-spacing:.01em;
      white-space:nowrap;
    }
    .brand:hover{color:#fff}
    .brand-mark{
      width:38px;
      height:38px;
      display:inline-grid;
      place-items:center;
      border-radius:13px;
      color:#061018;
      background:linear-gradient(135deg,var(--cyan),var(--green));
      box-shadow:0 0 24px rgba(40,215,255,.35);
      font-weight:900;
    }
    .nav-menu{gap:6px}
    .nav-menu a{
      position:relative;
      padding:27px 14px;
      color:#B7C8D6;
      font-size:15px;
      font-weight:700;
    }
    .nav-menu a:not(.btn):after{
      content:"";
      position:absolute;
      left:14px;
      right:14px;
      bottom:18px;
      height:2px;
      border-radius:999px;
      background:linear-gradient(90deg,var(--cyan),var(--purple));
      transform:scaleX(0);
      opacity:0;
      transform-origin:center;
      transition:transform .24s ease, opacity .24s ease;
      box-shadow:0 0 14px rgba(40,215,255,.55);
    }
    .nav-menu a:not(.btn):hover:after,
    .nav-menu a:not(.btn).active:after{transform:scaleX(1);opacity:1}
    .nav-menu a.active{color:#fff}
    .nav-cta{margin-left:10px}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:44px;
      padding:12px 20px;
      border-radius:999px;
      font-weight:800;
      line-height:1;
      border:1px solid transparent;
      transition:transform .22s ease, box-shadow .22s ease, background .22s ease, border-color .22s ease, filter .22s ease;
      white-space:nowrap;
    }
    .btn.primary{
      color:#05121B;
      background:linear-gradient(135deg,var(--cyan),var(--green));
      box-shadow:0 12px 32px rgba(40,215,255,.24), inset 0 1px 0 rgba(255,255,255,.45);
    }
    .btn.secondary{
      color:var(--cyan-2);
      background:rgba(40,215,255,.06);
      border-color:var(--line-strong);
    }
    .btn:hover{
      transform:translateY(-2px);
      filter:brightness(1.06);
      box-shadow:0 16px 38px rgba(40,215,255,.28);
      color:#061018;
    }
    .btn.secondary:hover{background:rgba(40,215,255,.14);color:#fff}
    .hero{
      padding:86px 0 72px;
      overflow:hidden;
    }
    .hero:before{
      content:"";
      position:absolute;
      width:620px;height:620px;
      right:-160px;top:40px;
      background:radial-gradient(circle, rgba(40,215,255,.15), transparent 62%);
      pointer-events:none;
      z-index:-1;
    }
    .breadcrumb{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:8px;
      margin-bottom:22px;
      color:var(--muted);
      font-size:14px;
    }
    .breadcrumb a{color:#C6D7E4}
    .breadcrumb span{color:var(--muted-2)}
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      margin-top:30px;
    }
    .tag-wall{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:28px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      border-radius:999px;
      padding:8px 12px;
      color:#CFEAF4;
      background:rgba(124,92,255,.10);
      border:1px solid rgba(124,92,255,.26);
      font-size:13px;
      font-weight:700;
    }
    .panel,.card{
      background:var(--glass);
      backdrop-filter:blur(14px);
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
      position:relative;
      overflow:hidden;
    }
    .panel:before,.card:before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(135deg, rgba(255,255,255,.07), transparent 35%);
      pointer-events:none;
    }
    .card{
      padding:26px;
      transition:transform .24s ease, border-color .24s ease, box-shadow .24s ease;
    }
    .card:hover{
      transform:translateY(-4px);
      border-color:rgba(40,215,255,.42);
      box-shadow:var(--shadow), var(--glow);
    }
    .flow-panel{
      padding:24px;
      min-height:100%;
    }
    .flow-title{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:16px;
      margin-bottom:20px;
    }
    .status-pill{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:7px 11px;
      border-radius:999px;
      color:var(--green);
      background:rgba(57,230,163,.08);
      border:1px solid rgba(57,230,163,.28);
      font-size:12px;
      font-weight:800;
    }
    .status-pill:before{
      content:"";
      width:7px;height:7px;border-radius:50%;
      background:var(--green);
      box-shadow:0 0 12px rgba(57,230,163,.8);
    }
    .vertical-flow{
      display:grid;
      gap:14px;
      position:relative;
    }
    .vertical-flow:before{
      content:"";
      position:absolute;
      left:22px;
      top:22px;
      bottom:22px;
      width:1px;
      background:linear-gradient(to bottom,var(--cyan),rgba(124,92,255,.7),transparent);
      opacity:.7;
    }
    .flow-step{
      display:grid;
      grid-template-columns:46px 1fr;
      gap:14px;
      align-items:start;
      padding:16px;
      border-radius:18px;
      background:rgba(7,16,24,.58);
      border:1px solid rgba(120,220,255,.13);
      position:relative;
    }
    .step-dot{
      width:46px;height:46px;
      display:grid;place-items:center;
      border-radius:16px;
      color:#061018;
      font-weight:900;
      background:linear-gradient(135deg,var(--cyan),var(--purple));
      box-shadow:0 0 20px rgba(40,215,255,.24);
      z-index:1;
    }
    .flow-step strong{display:block;color:#fff;margin-bottom:4px;font-size:17px}
    .flow-step span{color:var(--muted);font-size:14px;line-height:1.65}
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:24px;
      margin-bottom:34px;
    }
    .section-head p{max-width:590px;margin-bottom:0}
    .stair-stack{
      display:grid;
      gap:20px;
    }
    .ability-card{
      display:grid;
      grid-template-columns:86px 1fr auto;
      gap:22px;
      align-items:center;
      padding:26px;
      margin-left:calc(var(--offset, 0) * 28px);
    }
    .ability-no{
      width:64px;height:64px;
      border-radius:22px;
      display:grid;
      place-items:center;
      font-size:22px;
      font-weight:900;
      color:#061018;
      background:linear-gradient(135deg,var(--cyan),var(--green));
      box-shadow:0 0 28px rgba(40,215,255,.24);
    }
    .badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
    .badge{
      display:inline-flex;
      align-items:center;
      padding:6px 10px;
      border-radius:999px;
      font-size:12px;
      font-weight:800;
      letter-spacing:.02em;
      color:#BFEFFF;
      background:rgba(40,215,255,.08);
      border:1px solid rgba(40,215,255,.20);
    }
    .ability-arrow{
      width:44px;height:44px;border-radius:50%;
      display:grid;place-items:center;
      border:1px solid var(--line);
      color:var(--cyan);
      background:rgba(40,215,255,.06);
    }
    .timeline-wrap{
      padding:28px;
      border-radius:var(--radius-lg);
      background:linear-gradient(180deg, rgba(13,30,45,.76), rgba(8,18,28,.88));
      border:1px solid var(--line);
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .lane{
      display:grid;
      grid-template-columns:150px repeat(5,1fr);
      align-items:stretch;
      min-width:880px;
      border-bottom:1px solid rgba(120,220,255,.11);
    }
    .lane:last-child{border-bottom:0}
    .lane-label{
      padding:18px 16px;
      color:#fff;
      font-weight:800;
      background:rgba(255,255,255,.035);
      border-right:1px solid rgba(120,220,255,.12);
    }
    .lane-node{
      position:relative;
      padding:18px 14px;
      min-height:86px;
      color:var(--muted);
      font-size:14px;
      border-right:1px solid rgba(120,220,255,.10);
      transition:background .22s ease, color .22s ease;
    }
    .lane-node:last-child{border-right:0}
    .lane-node.active-node{
      color:#DDF8FF;
      background:rgba(40,215,255,.07);
    }
    .lane-node:before{
      content:"";
      display:block;
      width:10px;height:10px;
      border-radius:50%;
      margin-bottom:10px;
      background:rgba(158,179,197,.55);
    }
    .lane-node.active-node:before{
      background:var(--cyan);
      box-shadow:0 0 16px rgba(40,215,255,.75);
    }
    .lane-node:hover{background:rgba(40,215,255,.10);color:#fff}
    .timeline-scroll{
      overflow-x:auto;
      padding-bottom:8px;
      scrollbar-color:rgba(40,215,255,.45) rgba(255,255,255,.08);
    }
    .compare-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:22px;
    }
    .compare-card{
      padding:28px;
      border-radius:var(--radius);
      border:1px solid rgba(150,165,180,.18);
      background:rgba(115,126,140,.08);
      min-height:100%;
    }
    .compare-card.bright{
      border-color:rgba(40,215,255,.35);
      background:linear-gradient(180deg, rgba(40,215,255,.12), rgba(13,30,45,.68));
      box-shadow:var(--glow);
    }
    .compare-card h3{display:flex;align-items:center;gap:10px}
    .compare-card h3:before{
      content:"";
      width:10px;height:10px;border-radius:50%;
      background:var(--danger-soft);
    }
    .compare-card.bright h3:before{
      background:var(--green);
      box-shadow:0 0 14px rgba(57,230,163,.7);
    }
    .check-list{
      list-style:none;
      margin:18px 0 0;
      padding:0;
      display:grid;
      gap:12px;
    }
    .check-list li{
      position:relative;
      padding-left:24px;
      color:#C8D7E3;
      line-height:1.65;
    }
    .check-list li:before{
      content:"";
      position:absolute;
      left:0;
      top:.62em;
      width:8px;height:8px;
      border-radius:50%;
      background:var(--cyan);
      box-shadow:0 0 10px rgba(40,215,255,.55);
    }
    .contact-panel{
      padding:34px;
      border-radius:var(--radius-lg);
      background:
        radial-gradient(circle at 85% 10%, rgba(40,215,255,.14), transparent 34%),
        rgba(13,30,45,.76);
      border:1px solid var(--line);
      box-shadow:var(--shadow);
    }
    .form-card label{
      color:#DCEAF2;
      font-weight:750;
      margin-bottom:8px;
    }
    .form-card input,
    .form-card select,
    .form-card textarea{
      height:50px;
      border-radius:14px;
      border:1px solid rgba(120,220,255,.18);
      background:rgba(4,12,20,.72);
      color:var(--text);
      box-shadow:none;
      margin-bottom:18px;
    }
    .form-card textarea{min-height:118px;resize:vertical;padding-top:14px}
    .form-card input::placeholder,
    .form-card textarea::placeholder{color:#6F8496}
    .form-card input:focus,
    .form-card select:focus,
    .form-card textarea:focus{
      border-color:var(--cyan);
      background:rgba(5,14,22,.88);
      box-shadow:0 0 0 3px rgba(40,215,255,.12);
    }
    .privacy-tip{
      display:flex;
      gap:10px;
      align-items:flex-start;
      padding:12px 14px;
      border-radius:15px;
      color:#BFD0DC;
      background:rgba(57,230,163,.07);
      border:1px solid rgba(57,230,163,.20);
      font-size:13px;
      line-height:1.7;
      margin-bottom:18px;
    }
    .privacy-tip:before{
      content:"";
      flex:0 0 9px;
      width:9px;height:9px;border-radius:50%;
      background:var(--green);
      margin-top:8px;
      box-shadow:0 0 12px rgba(57,230,163,.7);
    }
    .accordion{
      background:transparent;
      border:0;
    }
    .accordion-item{
      margin-bottom:14px;
      border:1px solid var(--line);
      border-radius:18px;
      overflow:hidden;
      background:rgba(13,30,45,.58);
    }
    .accordion-title{
      border:0!important;
      color:#EAF3F8;
      padding:18px 52px 18px 42px;
      font-size:16px;
      font-weight:800;
      background:transparent;
      position:relative;
    }
    .accordion-title:before{
      right:20px;
      color:var(--cyan);
      font-size:20px;
      margin-top:-11px;
    }
    .accordion-title:after{
      content:"";
      position:absolute;
      left:20px;
      top:50%;
      width:8px;height:8px;
      transform:translateY(-50%);
      border-radius:50%;
      background:var(--cyan);
      box-shadow:0 0 12px rgba(40,215,255,.75);
    }
    .accordion-title:hover,.accordion-title:focus{background:rgba(40,215,255,.08);color:#fff}
    .accordion-content{
      background:rgba(5,14,22,.38);
      border:0!important;
      color:var(--muted);
      padding:0 22px 20px 42px;
      line-height:1.85;
    }
    .cta{
      padding:38px;
      border-radius:var(--radius-lg);
      background:
        linear-gradient(135deg, rgba(40,215,255,.14), rgba(124,92,255,.10)),
        rgba(13,30,45,.78);
      border:1px solid rgba(40,215,255,.26);
      box-shadow:var(--shadow), var(--glow);
    }
    .cta-inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:26px;
    }
    .cta h2{margin-bottom:8px}
    .cta p{margin-bottom:0;max-width:650px}
    .footer{
      padding:62px 0 26px;
      background:#040A11;
      border-top:1px solid rgba(120,220,255,.14);
      position:relative;
    }
    .footer:before{
      content:"";
      position:absolute;
      top:0;left:0;right:0;height:1px;
      background:linear-gradient(90deg, transparent, rgba(40,215,255,.65), rgba(124,92,255,.38), transparent);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.35fr .8fr .9fr 1.1fr;
      gap:34px;
      margin-bottom:34px;
    }
    .footer h4{
      color:#fff;
      font-size:16px;
      margin-bottom:15px;
      font-weight:800;
    }
    .footer ul{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:10px;
    }
    .footer li,.footer p{
      color:#9EB3C5;
      font-size:14px;
      line-height:1.75;
    }
    .footer a{color:#B7C8D6}
    .footer a:hover{color:var(--cyan)}
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:16px;
      padding-top:22px;
      border-top:1px solid rgba(120,220,255,.12);
      color:#738A9B;
      font-size:13px;
    }
    .backtop{
      position:fixed;
      right:22px;
      bottom:22px;
      width:44px;
      height:44px;
      border-radius:16px;
      display:grid;
      place-items:center;
      background:rgba(13,30,45,.72);
      border:1px solid var(--line);
      color:var(--cyan);
      backdrop-filter:blur(12px);
      box-shadow:0 12px 34px rgba(0,0,0,.32);
      z-index:30;
    }
    .backtop:hover{transform:translateY(-3px);border-color:var(--line-strong);color:#fff}
    @media (max-width:1024px){
      .section{padding:68px 0}
      .ability-card{
        margin-left:0!important;
        grid-template-columns:74px 1fr;
      }
      .ability-arrow{display:none}
      .compare-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr 1fr}
      .cta-inner{align-items:flex-start;flex-direction:column}
    }
    @media (max-width:767px){
      .container{width:min(calc(100% - 28px), var(--container))}
      .top-bar{
        width:100%;
        padding:8px 14px 16px;
        background:rgba(5,12,20,.94);
        backdrop-filter:blur(18px);
      }
      .top-bar-left{display:none}
      .nav-menu{
        display:grid;
        gap:0;
        width:100%;
      }
      .nav-menu li{width:100%}
      .nav-menu a{
        min-height:46px;
        padding:13px 8px;
      }
      .nav-menu a:not(.btn):after{bottom:8px;left:8px;right:auto;width:42px}
      .nav-cta{margin:8px 0 0}
      .nav-cta .btn{width:100%}
      .hero{padding:58px 0 50px}
      .hero-actions{flex-direction:column}
      .hero-actions .btn{width:100%}
      .section-head{display:block}
      .flow-panel{margin-top:24px}
      .ability-card{
        grid-template-columns:1fr;
        gap:15px;
        padding:22px;
      }
      .ability-no{width:56px;height:56px;border-radius:18px}
      .timeline-wrap{padding:18px}
      .contact-panel{padding:22px}
      .cta{padding:25px}
      .cta .btn{width:100%}
      .footer-grid{grid-template-columns:1fr}
      .copyright{flex-direction:column}
      .backtop{display:none}
    }
    @media (max-width:520px){
      h1{font-size:31px}
      h2{font-size:27px}
      .card{padding:21px}
      .flow-step{grid-template-columns:40px 1fr;padding:14px}
      .step-dot{width:40px;height:40px;border-radius:14px}
      .tag-wall{gap:8px}
      .tag{font-size:12px;padding:7px 10px}
    }