/* roulang page: index */
:root{
      --bg:#050B18;
      --bg-soft:#07111F;
      --panel:rgba(15,23,42,.62);
      --panel-strong:rgba(8,13,28,.82);
      --text:#F8FAFC;
      --muted:#CBD5E1;
      --weak:#94A3B8;
      --line:rgba(148,163,184,.18);
      --line-cyan:rgba(56,189,248,.22);
      --cyan:#22D3EE;
      --sky:#38BDF8;
      --violet:#8B5CF6;
      --green:#34D399;
      --amber:#FBBF24;
      --radius-xl:30px;
      --radius-lg:24px;
      --radius-md:18px;
      --shadow-cyan:0 0 42px rgba(34,211,238,.16);
      --shadow-violet:0 0 48px rgba(139,92,246,.14);
      --max:1240px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC","Hiragino Sans GB",Arial,sans-serif;
      color:var(--text);
      line-height:1.75;
      background:
        radial-gradient(circle at 12% 8%, rgba(34,211,238,.18), transparent 28%),
        radial-gradient(circle at 84% 18%, rgba(139,92,246,.16), transparent 30%),
        radial-gradient(circle at 70% 86%, rgba(52,211,153,.10), transparent 26%),
        linear-gradient(180deg,#050B18 0%,#07111F 48%,#050B18 100%);
      min-height:100vh;
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      z-index:-2;
      background-image:
        linear-gradient(rgba(148,163,184,.055) 1px, transparent 1px),
        linear-gradient(90deg, rgba(148,163,184,.055) 1px, transparent 1px);
      background-size:44px 44px;
      mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),rgba(0,0,0,.28),rgba(0,0,0,.85));
      pointer-events:none;
    }
    body:after{
      content:"";
      position:fixed;
      inset:-20%;
      z-index:-1;
      background:
        linear-gradient(115deg,transparent 0 42%,rgba(34,211,238,.08) 48%,transparent 54% 100%),
        linear-gradient(65deg,transparent 0 54%,rgba(139,92,246,.08) 60%,transparent 66% 100%);
      animation:scanFlow 14s linear infinite;
      pointer-events:none;
      opacity:.72;
    }
    @keyframes scanFlow{
      0%{transform:translate3d(-4%,0,0)}
      50%{transform:translate3d(4%,2%,0)}
      100%{transform:translate3d(-4%,0,0)}
    }
    a{color:inherit;text-decoration:none}
    img,svg{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    .site-container{width:min(var(--max),calc(100% - 48px));margin-inline:auto}
    .section{padding:96px 0}
    .section-tight{padding:72px 0}
    .glass{
      background:linear-gradient(180deg,rgba(15,23,42,.72),rgba(8,13,28,.62));
      border:1px solid var(--line-cyan);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-cyan), inset 0 1px 0 rgba(255,255,255,.06);
      backdrop-filter:blur(18px);
    }
    .glass-strong{
      background:linear-gradient(145deg,rgba(8,13,28,.92),rgba(15,23,42,.66));
      border:1px solid rgba(56,189,248,.24);
      box-shadow:var(--shadow-cyan),var(--shadow-violet), inset 0 1px 0 rgba(255,255,255,.07);
      backdrop-filter:blur(18px);
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      color:#BFF7FF;
      font-size:14px;
      border:1px solid rgba(34,211,238,.24);
      background:rgba(34,211,238,.08);
    }
    .eyebrow:before,.status-dot{
      content:"";
      width:8px;height:8px;border-radius:999px;
      background:var(--green);
      box-shadow:0 0 16px rgba(52,211,153,.75);
      flex:0 0 auto;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:48px;
      padding:13px 22px;
      border-radius:999px;
      font-weight:700;
      transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease, background .22s ease, filter .22s ease;
      outline:none;
      cursor:pointer;
      border:1px solid transparent;
      white-space:nowrap;
    }
    .btn-primary{
      color:white;
      background:linear-gradient(135deg,var(--cyan),var(--sky) 42%,var(--violet));
      box-shadow:0 0 26px rgba(34,211,238,.28),0 10px 30px rgba(99,102,241,.20);
    }
    .btn-primary:hover{transform:translateY(-3px);filter:brightness(1.08);box-shadow:0 0 42px rgba(34,211,238,.36),0 18px 42px rgba(99,102,241,.26)}
    .btn-secondary{
      color:#A7F3FF;
      background:rgba(15,23,42,.48);
      border-color:rgba(34,211,238,.34);
    }
    .btn-secondary:hover{transform:translateY(-3px);background:rgba(34,211,238,.10);box-shadow:0 0 26px rgba(34,211,238,.18)}
    .btn:active{transform:translateY(0) scale(.99)}
    .btn:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{
      outline:3px solid rgba(34,211,238,.48);
      outline-offset:3px;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      border-bottom:1px solid rgba(148,163,184,.14);
      background:rgba(5,11,24,.78);
      backdrop-filter:blur(18px);
    }
    .nav-wrap{
      width:min(var(--max),calc(100% - 48px));
      margin-inline:auto;
      min-height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:260px;
    }
    .brand-mark{
      width:42px;height:42px;border-radius:16px;
      position:relative;
      background:radial-gradient(circle at 30% 28%,#DFFBFF 0 8%,var(--cyan) 9% 18%,transparent 19%),
        linear-gradient(135deg,rgba(34,211,238,.22),rgba(139,92,246,.18));
      border:1px solid rgba(34,211,238,.28);
      box-shadow:0 0 28px rgba(34,211,238,.22);
    }
    .brand-mark:before,.brand-mark:after{
      content:"";position:absolute;border-radius:999px;border:1px solid rgba(34,211,238,.32);
    }
    .brand-mark:before{inset:9px}
    .brand-mark:after{width:7px;height:7px;right:9px;bottom:10px;background:var(--green);box-shadow:0 0 12px var(--green)}
    .brand-title{font-weight:800;letter-spacing:-.02em;line-height:1.15;font-size:17px}
    .brand-sub{font-size:12px;color:var(--weak);line-height:1.25;margin-top:2px}
    .nav-links{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:6px;
      flex:1;
    }
    .nav-link{
      position:relative;
      padding:10px 14px;
      border-radius:999px;
      color:var(--muted);
      font-size:15px;
      font-weight:650;
      transition:color .2s ease,background .2s ease;
    }
    .nav-link:hover,.nav-link.active{
      color:#E9FEFF;
      background:rgba(34,211,238,.08);
    }
    .nav-link:after{
      content:"";
      position:absolute;
      left:18px;right:18px;bottom:5px;height:2px;
      border-radius:999px;
      transform:scaleX(0);
      transform-origin:center;
      background:linear-gradient(90deg,var(--cyan),var(--violet));
      box-shadow:0 0 10px rgba(34,211,238,.65);
      transition:transform .22s ease;
    }
    .nav-link:hover:after,.nav-link.active:after{transform:scaleX(1)}
    .nav-actions{display:flex;align-items:center;gap:12px}
    .mega{position:relative}
    .mega-trigger{
      display:inline-flex;align-items:center;gap:8px;
      min-height:42px;padding:10px 14px;border-radius:999px;
      border:1px solid rgba(148,163,184,.18);
      background:rgba(15,23,42,.48);
      color:#DDFBFF;font-weight:700;font-size:14px;
    }
    .mega-panel{
      position:absolute;
      right:0;
      top:calc(100% + 14px);
      width:560px;
      opacity:0;
      visibility:hidden;
      transform:translateY(10px);
      transition:.22s ease;
      padding:18px;
      border-radius:24px;
      background:rgba(8,13,28,.92);
      border:1px solid rgba(56,189,248,.24);
      backdrop-filter:blur(20px);
      box-shadow:0 24px 80px rgba(0,0,0,.42),0 0 42px rgba(34,211,238,.14);
    }
    .mega:hover .mega-panel,.mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
    .mega-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:14px}
    .mega-title{font-size:13px;color:#A7F3FF;font-weight:800;margin-bottom:10px}
    .mega-pill{
      display:inline-flex;margin:0 8px 8px 0;padding:7px 10px;border-radius:999px;
      background:rgba(34,211,238,.08);border:1px solid rgba(34,211,238,.18);font-size:13px;color:var(--muted);
    }
    .mega-news{display:grid;gap:9px}
    .mega-news a{
      padding:10px 12px;border-radius:14px;background:rgba(255,255,255,.035);
      border:1px solid rgba(148,163,184,.12);font-size:13px;color:var(--muted);
    }
    .mega-news a:hover{border-color:rgba(34,211,238,.32);color:white}
    .mobile-toggle{display:none}
    .mobile-menu-button{display:none}
    .hero{
      padding:92px 0 58px;
      position:relative;
      overflow:hidden;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1.04fr) minmax(380px,.96fr);
      gap:44px;
      align-items:center;
    }
    .hero h1{
      font-size:clamp(38px,5.1vw,66px);
      line-height:1.08;
      letter-spacing:-.055em;
      margin:18px 0 22px;
      max-width:820px;
    }
    .gradient-text{
      background:linear-gradient(100deg,#FFFFFF 0%,#CFFAFE 35%,#7DD3FC 66%,#C4B5FD 100%);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .hero-lead{
      color:var(--muted);
      font-size:18px;
      line-height:1.85;
      max-width:700px;
    }
    .hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}
    .badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}
    .badge{
      display:inline-flex;align-items:center;gap:8px;
      padding:8px 12px;border-radius:999px;
      background:rgba(15,23,42,.58);
      border:1px solid rgba(148,163,184,.16);
      color:var(--muted);
      font-size:14px;
    }
    .radar-card{
      position:relative;
      min-height:520px;
      padding:26px;
      overflow:hidden;
    }
    .radar-card:before{
      content:"";
      position:absolute;inset:34px;
      border-radius:50%;
      background:
        radial-gradient(circle,rgba(34,211,238,.08) 0 10%,transparent 11%),
        repeating-radial-gradient(circle,rgba(56,189,248,.18) 0 1px,transparent 2px 58px),
        conic-gradient(from 30deg,rgba(34,211,238,.0),rgba(34,211,238,.28),rgba(139,92,246,.0),rgba(52,211,153,.18),rgba(34,211,238,.0));
      opacity:.72;
      animation:spinSlow 18s linear infinite;
    }
    @keyframes spinSlow{to{transform:rotate(360deg)}}
    .radar-core{
      position:absolute;
      inset:130px;
      border-radius:50%;
      border:1px solid rgba(34,211,238,.26);
      background:radial-gradient(circle,rgba(34,211,238,.20),rgba(139,92,246,.10),rgba(15,23,42,.32));
      display:flex;
      flex-direction:column;
      align-items:center;
      justify-content:center;
      text-align:center;
      box-shadow:inset 0 0 38px rgba(34,211,238,.12),0 0 38px rgba(139,92,246,.13);
    }
    .radar-core strong{font-size:42px;line-height:1;font-weight:850}
    .radar-core span{font-size:13px;color:var(--weak);margin-top:8px}
    .floating-metric{
      position:absolute;
      z-index:2;
      width:min(210px,46%);
      padding:15px;
      border-radius:18px;
      background:rgba(8,13,28,.78);
      border:1px solid rgba(56,189,248,.20);
      backdrop-filter:blur(14px);
      box-shadow:0 0 28px rgba(34,211,238,.10);
    }
    .floating-metric b{display:block;font-size:22px;line-height:1.15}
    .floating-metric small{color:var(--weak)}
    .m1{top:26px;left:24px}.m2{top:90px;right:24px}.m3{bottom:102px;left:28px}.m4{right:28px;bottom:28px}
    .section-head{
      display:flex;
      justify-content:space-between;
      align-items:end;
      gap:22px;
      margin-bottom:30px;
    }
    .section-head h2{
      margin:12px 0 0;
      font-size:clamp(30px,3.4vw,46px);
      line-height:1.16;
      letter-spacing:-.04em;
    }
    .section-head p{color:var(--weak);max-width:620px;margin:10px 0 0}
    .metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
    .metric-card{
      position:relative;
      padding:24px;
      overflow:hidden;
      transition:.24s ease;
    }
    .metric-card:hover,.matrix-card:hover,.observe-card:hover,.compare-box:hover{
      transform:translateY(-3px);
      border-color:rgba(34,211,238,.38);
      background:linear-gradient(180deg,rgba(15,23,42,.82),rgba(8,13,28,.70));
    }
    .metric-card:before,.matrix-card:before,.observe-card:before{
      content:"";
      position:absolute;left:20px;right:20px;top:0;height:1px;
      background:linear-gradient(90deg,transparent,var(--cyan),transparent);
      opacity:.55;
    }
    .metric-num{font-size:38px;line-height:1;font-weight:850;letter-spacing:-.04em}
    .metric-label{color:#DDFBFF;font-weight:750;margin-top:12px}
    .metric-desc{color:var(--weak);font-size:14px;margin-top:6px}
    .matrix-layout{display:grid;grid-template-columns:260px 1fr;gap:20px}
    .matrix-tabs{
      padding:18px;
      display:grid;
      gap:10px;
      align-content:start;
    }
    .matrix-tab{
      display:flex;align-items:center;justify-content:space-between;gap:12px;
      padding:13px 14px;border-radius:16px;
      border:1px solid rgba(148,163,184,.13);
      background:rgba(255,255,255,.035);
      color:var(--muted);
      font-weight:700;
    }
    .matrix-tab.active,.matrix-tab:hover{color:white;border-color:rgba(34,211,238,.32);background:rgba(34,211,238,.08)}
    .matrix-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .matrix-card{
      position:relative;
      min-height:172px;
      padding:22px;
      transition:.24s ease;
      overflow:hidden;
    }
    .icon-node{
      width:38px;height:38px;border-radius:14px;
      display:grid;place-items:center;
      background:linear-gradient(135deg,rgba(34,211,238,.18),rgba(139,92,246,.14));
      border:1px solid rgba(34,211,238,.24);
      margin-bottom:16px;
      color:#A7F3FF;
      font-weight:900;
    }
    .matrix-card h3{font-size:20px;line-height:1.3;margin:0 0 8px;font-weight:800}
    .matrix-card p{margin:0;color:var(--weak);font-size:14px}
    .compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
    .compare-box{padding:28px;transition:.24s ease}
    .compare-box h3{font-size:24px;margin:0 0 18px}
    .compare-list{display:grid;gap:12px}
    .compare-list li{
      list-style:none;
      display:flex;gap:12px;align-items:flex-start;
      color:var(--muted);
      padding:12px 0;
      border-bottom:1px solid rgba(148,163,184,.10);
    }
    .compare-list li:before{
      content:"";
      width:9px;height:9px;border-radius:999px;margin-top:10px;flex:0 0 auto;
      background:var(--cyan);
      box-shadow:0 0 12px rgba(34,211,238,.7);
    }
    .compare-box.dim .compare-list li:before{background:var(--amber);box-shadow:0 0 12px rgba(251,191,36,.55)}
    .observe-timeline{display:grid;gap:14px}
    .observe-card{
      display:grid;
      grid-template-columns:150px 1fr auto;
      gap:18px;
      align-items:center;
      padding:20px;
      transition:.24s ease;
      position:relative;
      overflow:hidden;
    }
    .tag{
      display:inline-flex;align-items:center;gap:7px;
      padding:6px 10px;border-radius:999px;
      font-size:13px;font-weight:750;
      color:#BFF7FF;
      background:rgba(34,211,238,.08);
      border:1px solid rgba(34,211,238,.20);
      width:max-content;
    }
    .observe-card h3{margin:0 0 6px;font-size:20px;line-height:1.35}
    .observe-card p{margin:0;color:var(--weak);font-size:14px}
    .date{color:var(--weak);font-size:13px}
    .read-link{color:#A7F3FF;font-weight:800;white-space:nowrap}
    .read-link:hover{color:white;text-shadow:0 0 14px rgba(34,211,238,.7)}
    .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    details{
      border-radius:20px;
      background:rgba(15,23,42,.56);
      border:1px solid rgba(148,163,184,.15);
      overflow:hidden;
      transition:.22s ease;
    }
    details:hover{border-color:rgba(34,211,238,.30)}
    details[open]{background:rgba(15,23,42,.72);border-color:rgba(34,211,238,.30)}
    summary{
      cursor:pointer;
      list-style:none;
      padding:20px 22px;
      font-weight:800;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
    }
    summary::-webkit-details-marker{display:none}
    summary:after{
      content:"+";
      color:var(--cyan);
      font-size:22px;
      line-height:1;
      transition:.2s ease;
    }
    details[open] summary:after{transform:rotate(45deg)}
    details p{padding:0 22px 22px;margin:0;color:var(--weak);font-size:15px}
    .cta-grid{display:grid;grid-template-columns:.88fr 1.12fr;gap:24px;align-items:stretch}
    .cta-info{padding:32px}
    .cta-info h2{font-size:clamp(30px,3.2vw,44px);line-height:1.16;letter-spacing:-.04em;margin:14px 0}
    .benefit-list{display:grid;gap:12px;margin-top:22px}
    .benefit{
      display:flex;gap:12px;align-items:flex-start;color:var(--muted);
      padding:12px;border-radius:16px;background:rgba(255,255,255,.035);border:1px solid rgba(148,163,184,.10);
    }
    .form-card{padding:28px}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field{display:grid;gap:7px}
    .field.full{grid-column:1/-1}
    .field label{font-size:14px;color:#DDFBFF;font-weight:750}
    .field input,.field textarea,.field select{
      width:100%;
      border:1px solid rgba(148,163,184,.18);
      background:rgba(2,6,23,.48);
      color:white;
      border-radius:16px;
      padding:13px 14px;
      outline:none;
      transition:.2s ease;
    }
    .field textarea{min-height:120px;resize:vertical}
    .field input::placeholder,.field textarea::placeholder{color:rgba(203,213,225,.58)}
    .field input:focus,.field textarea:focus,.field select:focus{
      border-color:rgba(34,211,238,.55);
      box-shadow:0 0 0 4px rgba(34,211,238,.10),0 0 22px rgba(34,211,238,.12);
    }
    .site-footer{
      border-top:1px solid rgba(56,189,248,.18);
      background:rgba(2,6,23,.58);
      padding:58px 0 28px;
      position:relative;
    }
    .site-footer:before{
      content:"";
      position:absolute;left:0;right:0;top:0;height:1px;
      background:linear-gradient(90deg,transparent,var(--cyan),var(--violet),transparent);
      opacity:.65;
    }
    .footer-grid{display:grid;grid-template-columns:1.35fr .75fr .75fr 1fr;gap:28px}
    .footer-title{font-size:18px;font-weight:850;margin-bottom:14px}
    .footer-text,.footer-links a,.copyright{color:var(--weak);font-size:14px}
    .footer-links{display:grid;gap:10px}
    .footer-links a:hover{color:#E9FEFF}
    .copyright{
      margin-top:34px;
      padding-top:22px;
      border-top:1px solid rgba(148,163,184,.12);
      display:flex;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
    }
    @media (max-width: 1024px){
      .site-container,.nav-wrap{width:min(100% - 32px,var(--max))}
      .hero-grid,.matrix-layout,.cta-grid{grid-template-columns:1fr}
      .radar-card{min-height:470px}
      .metric-grid{grid-template-columns:repeat(2,1fr)}
      .matrix-grid{grid-template-columns:repeat(2,1fr)}
      .observe-card{grid-template-columns:120px 1fr}
      .observe-card .read-link{grid-column:2}
      .footer-grid{grid-template-columns:1fr 1fr}
      .nav-links{display:none}
      .mobile-menu-button{
        display:flex;
        width:44px;height:44px;border-radius:14px;
        align-items:center;justify-content:center;
        border:1px solid rgba(148,163,184,.18);
        background:rgba(15,23,42,.55);
        color:white;
      }
      .mobile-menu-button span,.mobile-menu-button span:before,.mobile-menu-button span:after{
        display:block;width:18px;height:2px;border-radius:99px;background:#DDFBFF;position:relative;content:"";
      }
      .mobile-menu-button span:before{position:absolute;top:-6px}
      .mobile-menu-button span:after{position:absolute;top:6px}
      .mobile-toggle:checked ~ .mobile-panel{display:grid}
      .mobile-panel{
        display:none;
        grid-column:1/-1;
        width:100%;
        gap:8px;
        padding:0 0 16px;
      }
      .mobile-panel a{
        padding:12px 14px;border-radius:16px;
        background:rgba(15,23,42,.58);
        border:1px solid rgba(148,163,184,.12);
        color:var(--muted);
        font-weight:700;
      }
      .mega{display:none}
      .nav-actions .btn{display:none}
      .brand{min-width:auto}
      .nav-wrap{flex-wrap:wrap}
    }
    @media (max-width: 768px){
      .section{padding:72px 0}
      .section-tight{padding:58px 0}
      .hero{padding:62px 0 40px}
      .hero h1{font-size:clamp(34px,10vw,46px)}
      .hero-lead{font-size:16px}
      .radar-card{min-height:420px;padding:18px}
      .radar-core{inset:128px 96px}
      .floating-metric{padding:12px;width:48%}
      .floating-metric b{font-size:18px}
      .section-head{display:block}
      .compare-grid,.faq-grid{grid-template-columns:1fr}
      .observe-card{grid-template-columns:1fr;gap:10px}
      .observe-card .read-link{grid-column:auto}
      .form-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
      .copyright{display:block}
    }
    @media (max-width: 520px){
      .site-container,.nav-wrap{width:min(100% - 28px,var(--max))}
      .brand-title{font-size:15px}
      .brand-sub{display:none}
      .hero-actions .btn{width:100%}
      .badges{gap:8px}
      .metric-grid,.matrix-grid{grid-template-columns:1fr}
      .radar-card{min-height:390px}
      .radar-core{inset:142px 88px}
      .radar-core strong{font-size:28px}
      .m1{top:18px;left:16px}.m2{top:78px;right:16px}.m3{bottom:86px;left:16px}.m4{right:16px;bottom:18px}
      .compare-box,.cta-info,.form-card{padding:22px}
    }

/* roulang page: category1 */
:root{
      --bg:#050B18;
      --bg-2:#07111F;
      --panel:rgba(15,23,42,.62);
      --panel-strong:rgba(8,13,28,.82);
      --text:#F8FAFC;
      --muted:#CBD5E1;
      --weak:#94A3B8;
      --line:rgba(148,163,184,.18);
      --cyan:#22D3EE;
      --sky:#38BDF8;
      --violet:#8B5CF6;
      --green:#34D399;
      --amber:#FBBF24;
      --radius-xl:28px;
      --radius-lg:22px;
      --glow:0 0 42px rgba(34,211,238,.16);
      --glow-violet:0 0 52px rgba(139,92,246,.15);
      --shadow-card:0 18px 70px rgba(0,0,0,.34);
      --font:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC","Hiragino Sans GB",Arial,sans-serif;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font);
      color:var(--text);
      line-height:1.75;
      background:
        radial-gradient(circle at 18% 8%,rgba(34,211,238,.16),transparent 30%),
        radial-gradient(circle at 86% 18%,rgba(139,92,246,.16),transparent 28%),
        radial-gradient(circle at 50% 82%,rgba(52,211,153,.07),transparent 34%),
        linear-gradient(180deg,#050B18 0%,#07111F 48%,#050B18 100%);
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      z-index:-2;
      background-image:
        linear-gradient(rgba(56,189,248,.07) 1px,transparent 1px),
        linear-gradient(90deg,rgba(56,189,248,.07) 1px,transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(to bottom,rgba(0,0,0,.8),rgba(0,0,0,.12));
    }
    body:after{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      z-index:-1;
      background:
        linear-gradient(115deg,transparent 0%,rgba(34,211,238,.05) 38%,transparent 48%),
        repeating-linear-gradient(90deg,rgba(255,255,255,.025) 0 1px,transparent 1px 120px);
      opacity:.7;
    }
    a{color:inherit;text-decoration:none}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    input,select,textarea{outline:none}
    .site-container{width:min(1240px,calc(100% - 48px));margin-inline:auto}
    .section{padding:96px 0}
    .section-tight{padding:72px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border:1px solid rgba(34,211,238,.22);
      border-radius:999px;
      background:rgba(34,211,238,.08);
      color:#BAF3FF;
      font-size:14px;
      font-weight:700;
      letter-spacing:.02em;
    }
    .eyebrow:before{
      content:"";
      width:8px;height:8px;border-radius:999px;
      background:var(--green);
      box-shadow:0 0 16px rgba(52,211,153,.75);
    }
    .gradient-text{
      background:linear-gradient(100deg,#F8FAFC 8%,#A5F3FC 42%,#C4B5FD 78%);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      border-bottom:1px solid rgba(148,163,184,.16);
      background:rgba(5,11,24,.78);
      backdrop-filter:blur(18px);
      box-shadow:0 12px 40px rgba(0,0,0,.22);
    }
    .nav-wrap{
      width:min(1240px,calc(100% - 48px));
      min-height:78px;
      margin-inline:auto;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
      position:relative;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
    }
    .brand-mark{
      width:42px;height:42px;border-radius:16px;
      position:relative;
      background:
        radial-gradient(circle at 34% 30%,#E0FFFF 0 6px,transparent 7px),
        radial-gradient(circle at 70% 70%,rgba(139,92,246,.95) 0 5px,transparent 6px),
        linear-gradient(135deg,rgba(34,211,238,.95),rgba(99,102,241,.95));
      box-shadow:0 0 34px rgba(34,211,238,.36);
    }
    .brand-mark:after{
      content:"";
      position:absolute;
      inset:10px;
      border:1px solid rgba(255,255,255,.42);
      border-radius:12px;
      transform:rotate(12deg);
    }
    .brand-title{display:block;font-size:17px;font-weight:900;line-height:1.15;letter-spacing:-.02em}
    .brand-sub{display:block;margin-top:2px;font-size:12px;color:var(--weak);line-height:1.2}
    .nav-links{
      display:flex;
      align-items:center;
      gap:4px;
      padding:6px;
      border:1px solid rgba(148,163,184,.14);
      border-radius:999px;
      background:rgba(15,23,42,.38);
    }
    .nav-link{
      position:relative;
      display:inline-flex;
      align-items:center;
      padding:10px 15px;
      border-radius:999px;
      color:var(--muted);
      font-size:14px;
      font-weight:750;
      transition:.22s ease;
      white-space:nowrap;
    }
    .nav-link:hover,.nav-link.active{
      color:#ECFEFF;
      background:rgba(34,211,238,.1);
      box-shadow:inset 0 0 0 1px rgba(34,211,238,.16),0 0 22px rgba(34,211,238,.1);
    }
    .nav-link.active:after{
      content:"";
      position:absolute;
      left:18px;right:18px;bottom:5px;
      height:2px;
      border-radius:999px;
      background:linear-gradient(90deg,var(--cyan),var(--violet));
      box-shadow:0 0 14px rgba(34,211,238,.7);
    }
    .nav-actions{display:flex;align-items:center;gap:12px}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      border:1px solid transparent;
      border-radius:999px;
      padding:12px 18px;
      font-size:14px;
      font-weight:850;
      line-height:1;
      transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease;
      white-space:nowrap;
    }
    .btn-primary{
      color:white;
      background:linear-gradient(135deg,var(--cyan),#3B82F6 45%,var(--violet));
      box-shadow:0 0 34px rgba(34,211,238,.26),0 12px 28px rgba(0,0,0,.24);
    }
    .btn-secondary{
      color:#CFFAFE;
      border-color:rgba(34,211,238,.28);
      background:rgba(8,13,28,.52);
    }
    .btn:hover{transform:translateY(-2px)}
    .btn-primary:hover{box-shadow:0 0 46px rgba(34,211,238,.36),0 18px 34px rgba(0,0,0,.28)}
    .btn-secondary:hover{background:rgba(34,211,238,.09);border-color:rgba(34,211,238,.48)}
    .btn:active{transform:translateY(0) scale(.99)}
    .btn:focus-visible,.mega-trigger:focus-visible,.mobile-menu-button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{
      outline:3px solid rgba(34,211,238,.55);
      outline-offset:3px;
    }
    .mega{position:relative}
    .mega-trigger{
      border:1px solid rgba(148,163,184,.16);
      border-radius:999px;
      color:var(--muted);
      background:rgba(15,23,42,.5);
      padding:11px 15px;
      font-size:14px;
      font-weight:800;
      transition:.22s ease;
    }
    .mega-trigger:hover{color:#ECFEFF;border-color:rgba(34,211,238,.35);background:rgba(34,211,238,.08)}
    .mega-panel{
      position:absolute;
      right:0;
      top:calc(100% + 14px);
      width:520px;
      padding:18px;
      border:1px solid rgba(56,189,248,.18);
      border-radius:26px;
      background:rgba(5,11,24,.88);
      backdrop-filter:blur(20px);
      box-shadow:var(--shadow-card),var(--glow);
      opacity:0;
      visibility:hidden;
      transform:translateY(8px);
      transition:.22s ease;
    }
    .mega:hover .mega-panel,.mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
    .mega-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:16px}
    .mega-title{font-size:13px;color:#A5F3FC;font-weight:900;margin-bottom:10px}
    .mega-pill{
      display:inline-flex;
      margin:0 8px 8px 0;
      padding:7px 10px;
      border-radius:999px;
      font-size:12px;
      font-weight:800;
      color:var(--muted);
      border:1px solid rgba(148,163,184,.15);
      background:rgba(15,23,42,.52);
      transition:.2s ease;
    }
    .mega-pill:hover{color:#ECFEFF;border-color:rgba(34,211,238,.35);background:rgba(34,211,238,.08)}
    .mega-news{display:grid;gap:9px}
    .mega-news a{
      display:block;
      padding:10px 12px;
      border-radius:14px;
      color:var(--muted);
      font-size:13px;
      background:rgba(15,23,42,.42);
      border:1px solid rgba(148,163,184,.12);
      transition:.2s ease;
    }
    .mega-news a:hover{color:white;border-color:rgba(34,211,238,.32);transform:translateX(2px)}
    .mobile-toggle{display:none}
    .mobile-menu-button{display:none}
    .mobile-panel{display:none}
    .hero{
      position:relative;
      padding:88px 0 42px;
      overflow:hidden;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:1.04fr .96fr;
      gap:42px;
      align-items:center;
    }
    .hero h1{
      margin:20px 0 20px;
      font-size:clamp(38px,5vw,64px);
      line-height:1.1;
      letter-spacing:-.055em;
      font-weight:950;
    }
    .hero p{color:var(--muted);font-size:18px;max-width:720px}
    .hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}
    .badge-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}
    .badge{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 11px;
      border:1px solid rgba(148,163,184,.16);
      border-radius:999px;
      background:rgba(15,23,42,.5);
      color:#DDEAFE;
      font-size:13px;
      font-weight:800;
    }
    .badge i{width:7px;height:7px;border-radius:999px;background:var(--cyan);box-shadow:0 0 14px rgba(34,211,238,.8)}
    .glass-card{
      position:relative;
      border:1px solid rgba(56,189,248,.18);
      border-radius:var(--radius-xl);
      background:linear-gradient(180deg,rgba(15,23,42,.66),rgba(8,13,28,.72));
      backdrop-filter:blur(16px);
      box-shadow:var(--shadow-card);
      overflow:hidden;
    }
    .glass-card:before{
      content:"";
      position:absolute;
      left:18px;right:18px;top:0;
      height:1px;
      background:linear-gradient(90deg,transparent,rgba(165,243,252,.72),transparent);
      opacity:.75;
    }
    .radar-panel{padding:28px;min-height:430px}
    .radar-orbit{
      width:min(330px,82vw);
      aspect-ratio:1;
      margin:0 auto 24px;
      border-radius:50%;
      position:relative;
      background:
        radial-gradient(circle,rgba(34,211,238,.22) 0 2px,transparent 3px),
        radial-gradient(circle,transparent 0 31%,rgba(34,211,238,.18) 32%,transparent 33%),
        radial-gradient(circle,transparent 0 53%,rgba(139,92,246,.18) 54%,transparent 55%),
        radial-gradient(circle,transparent 0 74%,rgba(34,211,238,.14) 75%,transparent 76%);
      box-shadow:inset 0 0 38px rgba(34,211,238,.08),0 0 42px rgba(139,92,246,.13);
    }
    .radar-orbit:before{
      content:"";
      position:absolute;
      inset:50% 0 auto 50%;
      width:46%;
      height:2px;
      transform-origin:left center;
      transform:rotate(28deg);
      background:linear-gradient(90deg,var(--cyan),transparent);
      box-shadow:0 0 18px rgba(34,211,238,.7);
    }
    .radar-dot{
      position:absolute;
      width:12px;height:12px;border-radius:50%;
      background:var(--green);
      box-shadow:0 0 18px rgba(52,211,153,.8);
    }
    .dot-a{left:25%;top:38%}.dot-b{right:22%;top:28%;background:var(--cyan)}.dot-c{left:48%;bottom:20%;background:var(--violet)}
    .status-list{display:grid;gap:12px}
    .status-row{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:12px 14px;
      border-radius:16px;
      border:1px solid rgba(148,163,184,.14);
      background:rgba(15,23,42,.46);
      color:var(--muted);
      font-size:14px;
    }
    .status-row strong{color:white}
    .pulse{
      width:10px;height:10px;border-radius:999px;
      background:var(--green);
      box-shadow:0 0 18px rgba(52,211,153,.75);
      flex:none;
    }
    .section-head{
      max-width:820px;
      margin-bottom:34px;
    }
    .section-head.center{text-align:center;margin-inline:auto}
    .section-head h2{
      margin:14px 0 12px;
      font-size:clamp(28px,3.5vw,44px);
      line-height:1.16;
      letter-spacing:-.035em;
      font-weight:950;
    }
    .section-head p{color:var(--muted);font-size:17px}
    .metric-strip{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
    }
    .metric{
      padding:22px;
      border-radius:24px;
      border:1px solid rgba(56,189,248,.18);
      background:rgba(15,23,42,.55);
      box-shadow:var(--glow);
      transition:.22s ease;
    }
    .metric:hover{transform:translateY(-3px);border-color:rgba(34,211,238,.36);background:rgba(15,23,42,.72)}
    .metric b{display:block;font-size:32px;line-height:1.1;color:#ECFEFF;letter-spacing:-.03em}
    .metric span{display:block;margin-top:8px;color:var(--weak);font-size:14px}
    .index-layout{
      display:grid;
      grid-template-columns:310px 1fr;
      gap:22px;
      align-items:start;
    }
    .filter-panel{
      position:sticky;
      top:100px;
      padding:24px;
      border-radius:var(--radius-xl);
      border:1px solid rgba(56,189,248,.18);
      background:rgba(8,13,28,.72);
      backdrop-filter:blur(16px);
      box-shadow:var(--glow);
    }
    .filter-group{padding:16px 0;border-bottom:1px solid var(--line)}
    .filter-group:first-child{padding-top:0}
    .filter-group:last-child{border-bottom:0;padding-bottom:0}
    .filter-title{font-size:14px;font-weight:950;color:#E0F2FE;margin-bottom:10px}
    .check-list{display:grid;gap:8px}
    .fake-check{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      padding:10px 12px;
      border-radius:14px;
      border:1px solid rgba(148,163,184,.13);
      color:var(--muted);
      background:rgba(15,23,42,.42);
      font-size:14px;
      transition:.2s ease;
    }
    .fake-check:hover,.fake-check.active{color:white;border-color:rgba(34,211,238,.32);background:rgba(34,211,238,.08)}
    .fake-check em{
      width:9px;height:9px;border-radius:50%;
      background:rgba(148,163,184,.45);
      box-shadow:none;
      flex:none;
    }
    .fake-check.active em{background:var(--green);box-shadow:0 0 14px rgba(52,211,153,.75)}
    .resource-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:18px;
    }
    .resource-card{
      min-height:245px;
      padding:24px;
      border-radius:24px;
      border:1px solid rgba(56,189,248,.16);
      background:
        radial-gradient(circle at 88% 12%,rgba(34,211,238,.1),transparent 26%),
        rgba(15,23,42,.58);
      box-shadow:0 18px 55px rgba(0,0,0,.22);
      transition:.22s ease;
      position:relative;
      overflow:hidden;
    }
    .resource-card:hover{
      transform:translateY(-4px);
      border-color:rgba(34,211,238,.38);
      box-shadow:0 0 38px rgba(34,211,238,.14),0 22px 64px rgba(0,0,0,.3);
    }
    .card-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-bottom:18px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      padding:6px 10px;
      border-radius:999px;
      border:1px solid rgba(34,211,238,.22);
      background:rgba(34,211,238,.08);
      color:#A5F3FC;
      font-size:12px;
      font-weight:900;
    }
    .state{
      display:inline-flex;
      align-items:center;
      gap:7px;
      color:var(--muted);
      font-size:12px;
      font-weight:800;
    }
    .state:before{
      content:"";
      width:8px;height:8px;border-radius:50%;
      background:var(--green);
      box-shadow:0 0 14px rgba(52,211,153,.7);
    }
    .state.warn:before{background:var(--amber);box-shadow:0 0 14px rgba(251,191,36,.6)}
    .resource-card h3{font-size:21px;line-height:1.35;font-weight:950;margin:0 0 10px}
    .resource-card p{color:var(--muted);font-size:15px;margin:0 0 18px}
    .meta-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
    .meta{
      padding:6px 9px;
      border-radius:10px;
      background:rgba(148,163,184,.08);
      color:var(--weak);
      font-size:12px;
      border:1px solid rgba(148,163,184,.12);
    }
    .text-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:#A5F3FC;
      font-weight:900;
      font-size:14px;
      transition:.2s ease;
    }
    .text-link:hover{color:white;gap:12px}
    .scenario-grid{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:22px;
      align-items:stretch;
    }
    .scenario-card,.process-card,.faq-card,.contact-card{
      border:1px solid rgba(56,189,248,.17);
      border-radius:var(--radius-xl);
      background:rgba(15,23,42,.56);
      backdrop-filter:blur(16px);
      box-shadow:var(--shadow-card);
    }
    .scenario-card{padding:30px}
    .scenario-list{display:grid;gap:14px;margin-top:22px}
    .scenario-item{
      display:grid;
      grid-template-columns:36px 1fr;
      gap:14px;
      padding:16px;
      border-radius:18px;
      border:1px solid rgba(148,163,184,.13);
      background:rgba(8,13,28,.45);
    }
    .num{
      display:grid;place-items:center;
      width:36px;height:36px;border-radius:14px;
      background:linear-gradient(135deg,rgba(34,211,238,.9),rgba(139,92,246,.85));
      color:white;font-weight:950;
      box-shadow:0 0 22px rgba(34,211,238,.22);
    }
    .scenario-item strong{display:block;margin-bottom:3px}
    .scenario-item span{color:var(--weak);font-size:14px}
    .insight-panel{
      padding:30px;
      position:relative;
      overflow:hidden;
    }
    .insight-panel:after{
      content:"";
      position:absolute;
      width:260px;height:260px;border-radius:50%;
      right:-90px;bottom:-100px;
      border:1px solid rgba(34,211,238,.18);
      box-shadow:inset 0 0 50px rgba(34,211,238,.08);
    }
    .bar-list{display:grid;gap:16px;margin-top:24px}
    .bar-row span{display:flex;justify-content:space-between;color:var(--muted);font-size:14px;margin-bottom:8px}
    .bar{height:10px;border-radius:999px;background:rgba(148,163,184,.12);overflow:hidden;border:1px solid rgba(148,163,184,.1)}
    .bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--cyan),var(--violet));box-shadow:0 0 18px rgba(34,211,238,.5)}
    .process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .process-card{padding:24px;position:relative;overflow:hidden;transition:.22s ease}
    .process-card:hover{transform:translateY(-3px);border-color:rgba(34,211,238,.34)}
    .process-card .step{color:#A5F3FC;font-size:13px;font-weight:950;margin-bottom:10px}
    .process-card h3{font-size:19px;font-weight:950;margin-bottom:8px}
    .process-card p{color:var(--muted);font-size:14px}
    .faq-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:24px;align-items:start}
    .faq-card{padding:12px}
    details{
      border:1px solid rgba(148,163,184,.13);
      border-radius:18px;
      background:rgba(8,13,28,.46);
      margin:10px;
      overflow:hidden;
    }
    summary{
      list-style:none;
      cursor:pointer;
      padding:17px 18px;
      color:#E2E8F0;
      font-weight:900;
      display:flex;
      justify-content:space-between;
      gap:16px;
    }
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";color:#67E8F9;font-size:20px;line-height:1}
    details[open] summary:after{content:"—"}
    details p{padding:0 18px 18px;color:var(--muted);font-size:15px}
    .contact-card{padding:32px}
    .form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .field.full{grid-column:1/-1}
    .field label{display:block;color:#E0F2FE;font-size:13px;font-weight:900;margin-bottom:8px}
    .field input,.field select,.field textarea{
      width:100%;
      border:1px solid rgba(148,163,184,.18);
      border-radius:16px;
      background:rgba(5,11,24,.58);
      color:white;
      padding:13px 14px;
      transition:.2s ease;
    }
    .field textarea{min-height:118px;resize:vertical}
    .field input::placeholder,.field textarea::placeholder{color:#64748B}
    .field input:focus,.field select:focus,.field textarea:focus{
      border-color:rgba(34,211,238,.65);
      box-shadow:0 0 0 4px rgba(34,211,238,.09),0 0 22px rgba(34,211,238,.15);
    }
    .contact-note{
      display:grid;
      gap:10px;
      padding:22px;
      border-radius:24px;
      border:1px solid rgba(52,211,153,.18);
      background:rgba(52,211,153,.06);
    }
    .contact-note li{color:var(--muted);font-size:15px}
    .site-footer{
      border-top:1px solid rgba(56,189,248,.18);
      background:
        radial-gradient(circle at 20% 0%,rgba(34,211,238,.1),transparent 30%),
        rgba(3,7,18,.82);
      padding:58px 0 28px;
      position:relative;
    }
    .site-footer:before{
      content:"";
      position:absolute;
      left:0;right:0;top:0;height:1px;
      background:linear-gradient(90deg,transparent,rgba(34,211,238,.65),rgba(139,92,246,.55),transparent);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.35fr .8fr .8fr 1.05fr;
      gap:30px;
    }
    .footer-title{font-size:16px;font-weight:950;margin-bottom:12px;color:#ECFEFF}
    .footer-text{color:var(--weak);font-size:14px;line-height:1.8}
    .footer-links{display:grid;gap:8px}
    .footer-links a{color:var(--weak);font-size:14px;transition:.2s ease}
    .footer-links a:hover{color:#A5F3FC;transform:translateX(2px)}
    .copyright{
      margin-top:34px;
      padding-top:18px;
      border-top:1px solid rgba(148,163,184,.14);
      color:#64748B;
      font-size:13px;
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
    }
    @media (max-width:1024px){
      .nav-links,.nav-actions{display:none}
      .mobile-menu-button{
        display:flex;
        align-items:center;
        justify-content:center;
        width:44px;height:44px;border-radius:16px;
        border:1px solid rgba(148,163,184,.18);
        background:rgba(15,23,42,.56);
      }
      .mobile-menu-button span,.mobile-menu-button span:before,.mobile-menu-button span:after{
        display:block;width:20px;height:2px;border-radius:999px;background:#E2E8F0;position:relative;transition:.2s ease;
      }
      .mobile-menu-button span:before,.mobile-menu-button span:after{content:"";position:absolute;left:0}
      .mobile-menu-button span:before{top:-6px}.mobile-menu-button span:after{top:6px}
      .mobile-panel{
        position:absolute;
        left:0;right:0;top:calc(100% + 1px);
        padding:16px;
        border:1px solid rgba(56,189,248,.18);
        border-radius:0 0 24px 24px;
        background:rgba(5,11,24,.94);
        backdrop-filter:blur(18px);
        box-shadow:0 22px 42px rgba(0,0,0,.35);
      }
      .mobile-panel a{
        display:block;
        padding:13px 14px;
        border-radius:14px;
        color:var(--muted);
        font-weight:850;
      }
      .mobile-panel a:hover,.mobile-panel a.active{background:rgba(34,211,238,.09);color:#ECFEFF}
      .mobile-toggle:checked ~ .mobile-panel{display:block}
      .hero-grid,.index-layout,.scenario-grid,.faq-wrap{grid-template-columns:1fr}
      .filter-panel{position:relative;top:auto}
      .metric-strip,.process-grid{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width:768px){
      .site-container,.nav-wrap{width:min(100% - 32px,1240px)}
      .section{padding:68px 0}
      .hero{padding:58px 0 28px}
      .resource-grid{grid-template-columns:1fr}
      .radar-panel{min-height:auto;padding:22px}
      .form-grid{grid-template-columns:1fr}
      .field.full{grid-column:auto}
    }
    @media (max-width:520px){
      .brand-title{font-size:15px}
      .brand-sub{font-size:11px}
      .hero h1{font-size:36px}
      .hero p{font-size:16px}
      .hero-actions .btn{width:100%}
      .metric-strip,.process-grid,.footer-grid{grid-template-columns:1fr}
      .resource-card,.scenario-card,.insight-panel,.contact-card{padding:22px}
      .copyright{display:block}
      .copyright span{display:block;margin-top:8px}
    }

/* roulang page: category2 */
:root{
      --bg:#050B18;
      --bg-2:#07111F;
      --panel:rgba(15,23,42,.62);
      --panel-strong:rgba(8,13,28,.82);
      --text:#F8FAFC;
      --muted:#CBD5E1;
      --weak:#94A3B8;
      --line:rgba(148,163,184,.18);
      --cyan:#22D3EE;
      --sky:#38BDF8;
      --violet:#8B5CF6;
      --green:#34D399;
      --amber:#FBBF24;
      --radius-lg:30px;
      --radius-md:22px;
      --radius-sm:16px;
      --shadow-cyan:0 0 40px rgba(34,211,238,.16);
      --shadow-violet:0 0 48px rgba(139,92,246,.14);
      --header-h:78px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--text);
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC","Hiragino Sans GB",Arial,sans-serif;
      line-height:1.75;
      background:
        radial-gradient(circle at 18% 10%, rgba(34,211,238,.16), transparent 28%),
        radial-gradient(circle at 82% 16%, rgba(139,92,246,.18), transparent 28%),
        radial-gradient(circle at 50% 88%, rgba(52,211,153,.08), transparent 30%),
        linear-gradient(180deg,#050B18 0%,#07111F 48%,#050B18 100%);
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      z-index:-2;
      background-image:
        linear-gradient(rgba(56,189,248,.055) 1px, transparent 1px),
        linear-gradient(90deg, rgba(56,189,248,.055) 1px, transparent 1px);
      background-size:44px 44px;
      mask-image:linear-gradient(to bottom, rgba(0,0,0,.92), rgba(0,0,0,.28), rgba(0,0,0,.86));
      pointer-events:none;
    }
    body:after{
      content:"";
      position:fixed;
      inset:auto -15% 8% -15%;
      height:180px;
      z-index:-1;
      background:linear-gradient(90deg, transparent, rgba(34,211,238,.12), rgba(139,92,246,.08), transparent);
      filter:blur(20px);
      transform:rotate(-3deg);
      pointer-events:none;
    }
    a{color:inherit;text-decoration:none}
    button,input,textarea,select{font:inherit}
    img,svg{max-width:100%;display:block}
    ::selection{background:rgba(34,211,238,.28);color:#fff}
    .site-container{width:min(1240px, calc(100% - 48px));margin:0 auto}
    .section{padding:96px 0}
    .section-tight{padding:72px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:10px;
      padding:8px 13px;
      border:1px solid rgba(34,211,238,.22);
      border-radius:999px;
      background:rgba(34,211,238,.07);
      color:#BFF7FF;
      font-size:14px;
      font-weight:700;
      letter-spacing:.02em;
    }
    .eyebrow:before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--green);
      box-shadow:0 0 16px rgba(52,211,153,.8);
    }
    .gradient-text{
      background:linear-gradient(90deg,#F8FAFC 0%,#BFF7FF 45%,#C4B5FD 100%);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .muted{color:var(--muted)}
    .weak{color:var(--weak)}
    .glass{
      border:1px solid var(--line);
      background:linear-gradient(180deg, rgba(15,23,42,.70), rgba(8,13,28,.58));
      backdrop-filter:blur(16px);
      box-shadow:var(--shadow-cyan), inset 0 1px 0 rgba(255,255,255,.06);
    }
    .card-hover{
      transition:transform .25s ease, border-color .25s ease, background .25s ease, box-shadow .25s ease;
      position:relative;
      overflow:hidden;
    }
    .card-hover:before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(90deg, transparent, rgba(34,211,238,.09), transparent);
      transform:translateX(-110%);
      transition:transform .6s ease;
      pointer-events:none;
    }
    .card-hover:hover{
      transform:translateY(-3px);
      border-color:rgba(34,211,238,.36);
      background:linear-gradient(180deg, rgba(15,23,42,.82), rgba(8,13,28,.68));
      box-shadow:0 0 46px rgba(34,211,238,.13), 0 0 52px rgba(139,92,246,.10);
    }
    .card-hover:hover:before{transform:translateX(110%)}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:46px;
      padding:12px 20px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:800;
      line-height:1.2;
      transition:transform .22s ease, box-shadow .22s ease, filter .22s ease, background .22s ease, border-color .22s ease;
      cursor:pointer;
      white-space:nowrap;
    }
    .btn:focus-visible,.nav-link:focus-visible,.mega-trigger:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{
      outline:3px solid rgba(34,211,238,.38);
      outline-offset:3px;
    }
    .btn-primary{
      color:white;
      background:linear-gradient(135deg,var(--cyan),var(--sky) 38%,var(--violet));
      box-shadow:0 0 26px rgba(34,211,238,.25), 0 0 44px rgba(139,92,246,.18);
    }
    .btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 34px rgba(34,211,238,.34), 0 0 58px rgba(139,92,246,.24)}
    .btn-primary:active{transform:translateY(0);box-shadow:0 0 18px rgba(34,211,238,.20)}
    .btn-secondary{
      color:#BFF7FF;
      background:rgba(34,211,238,.06);
      border-color:rgba(34,211,238,.24);
    }
    .btn-secondary:hover{background:rgba(34,211,238,.12);border-color:rgba(34,211,238,.44);transform:translateY(-2px)}
    .tag{
      display:inline-flex;
      align-items:center;
      gap:7px;
      border:1px solid rgba(148,163,184,.18);
      background:rgba(148,163,184,.07);
      color:#DCEBFF;
      padding:7px 10px;
      border-radius:999px;
      font-size:13px;
      font-weight:700;
    }
    .tag .dot,.status-dot{
      width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 12px rgba(52,211,153,.8);
      flex:0 0 auto;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      border-bottom:1px solid rgba(148,163,184,.14);
      background:rgba(5,11,24,.76);
      backdrop-filter:blur(18px);
      box-shadow:0 12px 38px rgba(0,0,0,.20);
    }
    .nav-wrap{
      width:min(1240px, calc(100% - 48px));
      min-height:var(--header-h);
      margin:0 auto;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
      position:relative;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:250px;
    }
    .brand-mark{
      width:43px;
      height:43px;
      border-radius:16px;
      position:relative;
      background:
        radial-gradient(circle at 30% 28%, #fff 0 3px, transparent 4px),
        radial-gradient(circle at 70% 68%, #A7F3D0 0 3px, transparent 4px),
        linear-gradient(135deg, rgba(34,211,238,.92), rgba(139,92,246,.82));
      box-shadow:0 0 26px rgba(34,211,238,.38);
    }
    .brand-mark:before,.brand-mark:after{
      content:"";
      position:absolute;
      background:rgba(255,255,255,.72);
      height:1px;
      width:25px;
      left:9px;
      top:20px;
      transform:rotate(34deg);
    }
    .brand-mark:after{transform:rotate(-31deg);top:23px;width:21px;left:12px}
    .brand-title{
      display:block;
      font-weight:900;
      color:#F8FAFC;
      letter-spacing:.01em;
      line-height:1.12;
    }
    .brand-sub{
      display:block;
      color:var(--weak);
      font-size:12px;
      margin-top:2px;
      line-height:1.2;
    }
    .nav-links{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      flex:1;
    }
    .nav-link{
      position:relative;
      display:inline-flex;
      align-items:center;
      min-height:40px;
      padding:9px 14px;
      border-radius:999px;
      color:#CBD5E1;
      font-weight:800;
      font-size:15px;
      transition:color .22s ease, background .22s ease;
    }
    .nav-link:after{
      content:"";
      position:absolute;
      left:18px;
      right:18px;
      bottom:4px;
      height:2px;
      border-radius:999px;
      background:linear-gradient(90deg,var(--cyan),var(--violet));
      opacity:0;
      transform:scaleX(.35);
      transition:opacity .22s ease, transform .22s ease;
    }
    .nav-link:hover,.nav-link.active{
      color:#E6FBFF;
      background:rgba(34,211,238,.08);
    }
    .nav-link:hover:after,.nav-link.active:after{opacity:1;transform:scaleX(1)}
    .nav-actions{
      display:flex;
      align-items:center;
      gap:12px;
    }
    .mega{position:relative}
    .mega-trigger{
      min-height:42px;
      padding:10px 14px;
      border:1px solid rgba(148,163,184,.18);
      border-radius:999px;
      background:rgba(15,23,42,.56);
      color:#DCEBFF;
      font-weight:800;
      cursor:pointer;
      transition:background .22s ease,border-color .22s ease,color .22s ease;
    }
    .mega-trigger:hover{background:rgba(34,211,238,.08);border-color:rgba(34,211,238,.32);color:#fff}
    .mega-panel{
      position:absolute;
      right:0;
      top:calc(100% + 14px);
      width:520px;
      border:1px solid rgba(34,211,238,.22);
      background:rgba(7,17,31,.92);
      backdrop-filter:blur(18px);
      border-radius:24px;
      padding:18px;
      box-shadow:0 28px 80px rgba(0,0,0,.42), var(--shadow-cyan);
      opacity:0;
      visibility:hidden;
      transform:translateY(8px);
      transition:opacity .2s ease, transform .2s ease, visibility .2s ease;
    }
    .mega:hover .mega-panel,.mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
    .mega-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:16px}
    .mega-title{color:#F8FAFC;font-weight:900;margin-bottom:10px}
    .mega-pill{
      display:inline-flex;
      margin:0 7px 8px 0;
      padding:8px 11px;
      border-radius:999px;
      border:1px solid rgba(148,163,184,.16);
      color:#CDEBFF;
      background:rgba(148,163,184,.06);
      font-size:13px;
      font-weight:800;
      transition:background .2s ease,border-color .2s ease,transform .2s ease;
    }
    .mega-pill:hover{background:rgba(34,211,238,.11);border-color:rgba(34,211,238,.33);transform:translateY(-1px)}
    .mega-news{display:grid;gap:9px}
    .mega-news a{
      display:block;
      color:#CBD5E1;
      font-size:13px;
      padding:10px 12px;
      border-radius:14px;
      background:rgba(255,255,255,.035);
      border:1px solid rgba(148,163,184,.12);
      transition:color .2s ease,border-color .2s ease,background .2s ease;
    }
    .mega-news a:hover{color:#fff;border-color:rgba(34,211,238,.26);background:rgba(34,211,238,.07)}
    .mobile-toggle{display:none}
    .mobile-menu-button{display:none}
    .mobile-panel{display:none}

    .hero{
      position:relative;
      padding:94px 0 78px;
      overflow:hidden;
    }
    .hero:before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 77% 42%, rgba(34,211,238,.14), transparent 22%),
        radial-gradient(circle at 72% 66%, rgba(139,92,246,.12), transparent 24%);
      pointer-events:none;
    }
    .hero-grid{
      position:relative;
      display:grid;
      grid-template-columns:1.02fr .98fr;
      gap:48px;
      align-items:center;
    }
    .hero h1{
      margin:18px 0 20px;
      font-size:clamp(38px,5.4vw,66px);
      line-height:1.08;
      letter-spacing:-.045em;
      font-weight:950;
    }
    .hero-lead{
      color:#D5E7F7;
      font-size:18px;
      max-width:680px;
      line-height:1.85;
    }
    .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
    .hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
    .radar-card{
      border-radius:var(--radius-lg);
      padding:26px;
      min-height:520px;
      position:relative;
      overflow:hidden;
    }
    .radar-card:before{
      content:"";
      position:absolute;
      width:440px;height:440px;
      right:-70px;top:28px;
      border-radius:50%;
      background:
        repeating-radial-gradient(circle, rgba(34,211,238,.18) 0 1px, transparent 1px 58px),
        conic-gradient(from 40deg, rgba(34,211,238,.0), rgba(34,211,238,.35), rgba(139,92,246,.18), rgba(34,211,238,.0));
      opacity:.46;
      animation:spin 18s linear infinite;
    }
    .radar-card:after{
      content:"";
      position:absolute;
      inset:30px;
      border-radius:28px;
      background:linear-gradient(135deg, rgba(255,255,255,.04), transparent 42%);
      pointer-events:none;
    }
    @keyframes spin{to{transform:rotate(360deg)}}
    .radar-inner{position:relative;z-index:1;display:grid;gap:16px}
    .signal-row{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:16px;
      border-radius:20px;
      background:rgba(5,11,24,.54);
      border:1px solid rgba(148,163,184,.15);
    }
    .signal-line{
      height:8px;
      flex:1;
      border-radius:999px;
      background:linear-gradient(90deg, rgba(34,211,238,.16), rgba(34,211,238,.72), rgba(139,92,246,.52));
      position:relative;
      overflow:hidden;
    }
    .signal-line:after{
      content:"";
      position:absolute;
      inset:0;
      width:34%;
      background:linear-gradient(90deg, transparent, rgba(255,255,255,.55), transparent);
      animation:scan 2.8s ease-in-out infinite;
    }
    @keyframes scan{0%{transform:translateX(-120%)}100%{transform:translateX(320%)}}
    .pulse-node{
      width:14px;height:14px;border-radius:50%;
      background:var(--cyan);
      box-shadow:0 0 0 8px rgba(34,211,238,.10),0 0 22px rgba(34,211,238,.85);
    }

    .step-timeline{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
      counter-reset:step;
    }
    .step-card{
      counter-increment:step;
      padding:24px;
      border-radius:24px;
      min-height:250px;
    }
    .step-number{
      width:46px;height:46px;
      border-radius:16px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg,rgba(34,211,238,.92),rgba(139,92,246,.82));
      color:#fff;
      font-size:18px;
      font-weight:950;
      box-shadow:0 0 26px rgba(34,211,238,.22);
    }
    .step-number:before{content:counter(step)}
    .guide-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
    }
    .guide-card{padding:24px;border-radius:24px}
    .icon-box{
      width:48px;height:48px;
      border-radius:18px;
      display:grid;
      place-items:center;
      color:#fff;
      background:linear-gradient(135deg,rgba(34,211,238,.22),rgba(139,92,246,.18));
      border:1px solid rgba(34,211,238,.20);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
    }
    .comparison{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:20px;
      align-items:stretch;
    }
    .compare-card{
      border-radius:28px;
      padding:28px;
      position:relative;
    }
    .compare-list{display:grid;gap:14px;margin-top:20px}
    .compare-item{
      display:flex;
      gap:12px;
      align-items:flex-start;
      padding:14px;
      border-radius:18px;
      background:rgba(255,255,255,.035);
      border:1px solid rgba(148,163,184,.12);
      color:#CBD5E1;
    }
    .mark{
      width:24px;height:24px;border-radius:50%;display:grid;place-items:center;flex:0 0 auto;font-weight:950;font-size:13px;
    }
    .mark-good{background:rgba(52,211,153,.16);color:#A7F3D0}
    .mark-warn{background:rgba(251,191,36,.13);color:#FDE68A}
    .status-strip{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:14px;
      padding:16px;
      border-radius:26px;
      border:1px solid rgba(34,211,238,.18);
      background:linear-gradient(90deg,rgba(34,211,238,.07),rgba(139,92,246,.06));
    }
    .status-unit{
      padding:16px;
      border-radius:20px;
      background:rgba(5,11,24,.45);
      border:1px solid rgba(148,163,184,.12);
    }
    .status-unit strong{
      display:block;
      color:#fff;
      font-size:26px;
      line-height:1.1;
      font-weight:950;
    }
    .reading-list{display:grid;gap:14px}
    .reading-item{
      display:grid;
      grid-template-columns:auto 1fr auto;
      gap:18px;
      align-items:center;
      padding:18px;
      border-radius:22px;
      border:1px solid rgba(148,163,184,.15);
      background:rgba(15,23,42,.52);
      transition:transform .22s ease,border-color .22s ease,background .22s ease;
    }
    .reading-item:hover{transform:translateX(3px);border-color:rgba(34,211,238,.32);background:rgba(15,23,42,.72)}
    .rank{
      width:42px;height:42px;border-radius:15px;
      display:grid;place-items:center;
      background:rgba(34,211,238,.10);
      color:#A5F3FC;
      font-weight:950;
      border:1px solid rgba(34,211,238,.18);
    }
    details.faq-item{
      border-radius:22px;
      border:1px solid rgba(148,163,184,.15);
      background:rgba(15,23,42,.56);
      overflow:hidden;
      transition:border-color .2s ease,background .2s ease;
    }
    details.faq-item[open]{border-color:rgba(34,211,238,.30);background:rgba(15,23,42,.74)}
    .faq-item summary{
      list-style:none;
      cursor:pointer;
      padding:20px 22px;
      color:#F8FAFC;
      font-weight:900;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{
      content:"+";
      width:28px;height:28px;border-radius:50%;
      display:grid;place-items:center;
      background:rgba(34,211,238,.10);
      color:#A5F3FC;
      flex:0 0 auto;
      transition:transform .2s ease;
    }
    details[open] summary:after{content:"−";transform:rotate(180deg)}
    .faq-body{padding:0 22px 22px;color:#CBD5E1}
    .cta-panel{
      border-radius:32px;
      padding:34px;
      display:grid;
      grid-template-columns:1fr .95fr;
      gap:28px;
      align-items:center;
      position:relative;
      overflow:hidden;
    }
    .cta-panel:before{
      content:"";
      position:absolute;
      inset:0;
      background:radial-gradient(circle at 12% 15%, rgba(34,211,238,.17), transparent 28%),
        radial-gradient(circle at 88% 62%, rgba(139,92,246,.18), transparent 34%);
      pointer-events:none;
    }
    .cta-panel>*{position:relative;z-index:1}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .form-grid .full{grid-column:1/-1}
    .field label{
      display:block;
      color:#DCEBFF;
      font-size:13px;
      font-weight:800;
      margin:0 0 7px;
    }
    .field input,.field select,.field textarea{
      width:100%;
      border:1px solid rgba(148,163,184,.20);
      background:rgba(5,11,24,.54);
      color:#F8FAFC;
      border-radius:16px;
      padding:13px 14px;
      outline:none;
      transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
    }
    .field textarea{min-height:112px;resize:vertical}
    .field input::placeholder,.field textarea::placeholder{color:#7F8EA3}
    .field input:focus,.field select:focus,.field textarea:focus{
      border-color:rgba(34,211,238,.55);
      box-shadow:0 0 0 4px rgba(34,211,238,.10),0 0 24px rgba(34,211,238,.10);
      background:rgba(5,11,24,.72);
    }
    .site-footer{
      border-top:1px solid rgba(34,211,238,.16);
      background:linear-gradient(180deg, rgba(5,11,24,.72), rgba(3,7,16,.98));
      padding:58px 0 28px;
      position:relative;
    }
    .site-footer:before{
      content:"";
      position:absolute;
      top:-1px;left:0;right:0;height:1px;
      background:linear-gradient(90deg,transparent,rgba(34,211,238,.65),rgba(139,92,246,.45),transparent);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.45fr .8fr .8fr 1.1fr;
      gap:30px;
    }
    .footer-title{color:#F8FAFC;font-weight:950;margin-bottom:12px}
    .footer-text{color:#94A3B8;font-size:14px;line-height:1.8}
    .footer-links{display:grid;gap:8px}
    .footer-links a{
      color:#CBD5E1;
      font-size:14px;
      transition:color .2s ease,transform .2s ease;
      width:max-content;
    }
    .footer-links a:hover{color:#A5F3FC;transform:translateX(2px)}
    .copyright{
      margin-top:34px;
      padding-top:20px;
      border-top:1px solid rgba(148,163,184,.14);
      display:flex;
      justify-content:space-between;
      gap:18px;
      color:#7F8EA3;
      font-size:13px;
      flex-wrap:wrap;
    }

    @media (max-width:1024px){
      .nav-links,.nav-actions{display:none}
      .brand{min-width:auto}
      .mobile-menu-button{
        display:grid;
        width:46px;height:46px;
        place-items:center;
        border-radius:16px;
        border:1px solid rgba(148,163,184,.18);
        background:rgba(15,23,42,.62);
        cursor:pointer;
      }
      .mobile-menu-button span,.mobile-menu-button span:before,.mobile-menu-button span:after{
        content:"";
        display:block;
        width:20px;height:2px;border-radius:999px;
        background:#DFFBFF;
        position:relative;
      }
      .mobile-menu-button span:before{position:absolute;top:-7px}
      .mobile-menu-button span:after{position:absolute;top:7px}
      .mobile-panel{
        display:none;
        position:absolute;
        top:calc(100% + 10px);
        left:0;right:0;
        padding:14px;
        border-radius:22px;
        border:1px solid rgba(34,211,238,.20);
        background:rgba(7,17,31,.96);
        backdrop-filter:blur(16px);
        box-shadow:0 24px 60px rgba(0,0,0,.34);
      }
      .mobile-toggle:checked ~ .mobile-panel{display:grid;gap:8px}
      .mobile-panel a{
        padding:12px 14px;
        border-radius:14px;
        color:#DCEBFF;
        font-weight:800;
        background:rgba(255,255,255,.035);
        border:1px solid rgba(148,163,184,.10);
      }
      .mobile-panel a.active{background:rgba(34,211,238,.10);border-color:rgba(34,211,238,.26);color:#A5F3FC}
      .hero-grid,.cta-panel{grid-template-columns:1fr}
      .radar-card{min-height:auto}
      .step-timeline,.status-strip{grid-template-columns:repeat(2,1fr)}
      .guide-grid{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      .site-container,.nav-wrap{width:min(100% - 32px, 1240px)}
      .section{padding:70px 0}
      .section-tight{padding:56px 0}
      .hero{padding:70px 0 58px}
      .hero-lead{font-size:16px}
      .comparison{grid-template-columns:1fr}
      .reading-item{grid-template-columns:auto 1fr}
      .reading-item .btn{grid-column:1/-1;width:100%}
      .form-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
    }
    @media (max-width:520px){
      .brand-title{font-size:14px}
      .brand-sub{font-size:11px}
      .brand-mark{width:38px;height:38px;border-radius:14px}
      .hero-actions .btn{width:100%}
      .hero-badges{display:grid;grid-template-columns:1fr 1fr}
      .step-timeline,.guide-grid,.status-strip{grid-template-columns:1fr}
      .radar-card,.cta-panel{padding:22px;border-radius:24px}
      .signal-row{align-items:flex-start;flex-direction:column}
      .signal-line{width:100%}
      .copyright{display:grid}
    }