/* roulang page: index */
:root{
      --bg:#0b0f14;
      --bg-2:#101722;
      --bg-3:#151e2a;
      --surface:#111823;
      --surface-2:#16202c;
      --line:rgba(255,255,255,.08);
      --line-2:rgba(255,255,255,.14);
      --text:#e9eef5;
      --muted:#9aa7b8;
      --soft:#74839a;
      --accent:#35e0b0;
      --accent-2:#f0b44c;
      --danger:#ff7d6b;
      --shadow:0 20px 60px rgba(0,0,0,.28);
      --shadow-soft:0 12px 30px rgba(0,0,0,.18);
      --radius:18px;
      --radius-sm:14px;
      --container:1200px;
      --gap:24px;
      --gap-lg:32px;
      --trans:.22s cubic-bezier(.2,.7,.2,1);
      --header-h:78px;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",Segoe UI,Roboto,Helvetica,Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(1200px 600px at 8% 0%, rgba(53,224,176,.14), transparent 58%),
        radial-gradient(900px 500px at 100% 0%, rgba(240,180,76,.08), transparent 56%),
        linear-gradient(180deg, #0b0f14 0%, #0d1219 46%, #0a0d12 100%);
      min-height:100vh;
      line-height:1.7;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background-image:
        linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(180deg, rgba(0,0,0,.24), transparent 68%);
      opacity:.18;
      z-index:0;
    }
    img{
      display:block;
      max-width:100%;
      height:auto;
    }
    a{
      color:inherit;
      text-decoration:none;
      transition:color var(--trans), background var(--trans), border-color var(--trans), transform var(--trans), box-shadow var(--trans), opacity var(--trans);
    }
    button,input{
      font:inherit;
    }
    button{
      border:0;
      background:none;
      color:inherit;
      padding:0;
      cursor:pointer;
    }
    input{
      width:100%;
      border:0;
      background:transparent;
      color:var(--text);
      outline:none;
    }
    ::selection{
      background:rgba(53,224,176,.25);
      color:#fff;
    }
    :focus-visible{
      outline:2px solid rgba(53,224,176,.85);
      outline-offset:3px;
      border-radius:12px;
    }
    .container{
      width:min(var(--container), calc(100% - 32px));
      margin:0 auto;
      position:relative;
      z-index:1;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:40;
      backdrop-filter:blur(18px);
      background:rgba(9,12,18,.72);
      border-bottom:1px solid rgba(255,255,255,.06);
    }
    .header-inner{
      min-height:var(--header-h);
      display:flex;
      align-items:center;
      gap:18px;
      justify-content:space-between;
    }
    .brand{
      display:flex;
      flex-direction:column;
      align-items:flex-start;
      gap:2px;
      min-width:max-content;
    }
    .brand strong{
      font-size:1.08rem;
      letter-spacing:.4px;
      font-weight:800;
      color:#fff;
      line-height:1.15;
    }
    .brand span{
      font-size:.78rem;
      color:var(--muted);
      letter-spacing:.3px;
    }
    .site-nav{
      display:flex;
      align-items:center;
      gap:10px;
      margin-left:auto;
      margin-right:16px;
    }
    .nav-link{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:42px;
      padding:0 16px;
      border:1px solid transparent;
      border-radius:999px;
      color:var(--muted);
      background:transparent;
      font-size:.96rem;
      letter-spacing:.2px;
    }
    .nav-link:hover{
      color:#fff;
      background:rgba(255,255,255,.04);
      border-color:rgba(255,255,255,.08);
      transform:translateY(-1px);
    }
    .nav-link.active,
    .nav-link[aria-current="page"]{
      color:#08110f;
      background:linear-gradient(135deg, rgba(53,224,176,1), rgba(120,248,214,.92));
      box-shadow:0 10px 24px rgba(53,224,176,.18);
    }
    .header-actions{
      display:flex;
      align-items:center;
      gap:10px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:46px;
      padding:0 18px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:700;
      letter-spacing:.2px;
      transition:transform var(--trans), box-shadow var(--trans), background var(--trans), border-color var(--trans), color var(--trans), opacity var(--trans);
      white-space:nowrap;
    }
    .btn:hover{
      transform:translateY(-2px);
      box-shadow:var(--shadow-soft);
    }
    .btn-primary{
      color:#061310;
      background:linear-gradient(135deg, var(--accent) 0%, #76f4cf 100%);
      box-shadow:0 16px 30px rgba(53,224,176,.16);
    }
    .btn-primary:hover{
      filter:saturate(1.03) brightness(1.02);
    }
    .btn-secondary{
      color:var(--text);
      background:rgba(255,255,255,.03);
      border-color:rgba(255,255,255,.12);
    }
    .btn-secondary:hover{
      background:rgba(255,255,255,.06);
      border-color:rgba(255,255,255,.2);
    }
    .nav-toggle{
      display:none;
      width:46px;
      height:46px;
      border-radius:14px;
      border:1px solid rgba(255,255,255,.1);
      background:rgba(255,255,255,.03);
      color:#fff;
      position:relative;
    }
    .nav-toggle span,
    .nav-toggle::before,
    .nav-toggle::after{
      content:"";
      position:absolute;
      left:50%;
      width:18px;
      height:2px;
      background:#fff;
      border-radius:2px;
      transform:translateX(-50%);
      transition:transform var(--trans), top var(--trans), opacity var(--trans);
    }
    .nav-toggle span{top:22px}
    .nav-toggle::before{top:16px}
    .nav-toggle::after{top:28px}

    main{
      position:relative;
      z-index:1;
    }
    .section{
      padding:82px 0;
    }
    .section.tight{
      padding:68px 0;
    }
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:18px;
      margin-bottom:26px;
    }
    .section-head h2{
      margin:0;
      font-size:clamp(1.45rem, 1.2rem + 1vw, 2.1rem);
      letter-spacing:.2px;
      line-height:1.18;
    }
    .section-head p{
      margin:0;
      color:var(--muted);
      max-width:560px;
      font-size:.98rem;
    }

    .hero{
      position:relative;
      overflow:hidden;
      padding:32px 0 52px;
    }
    .hero::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(135deg, rgba(8,11,16,.56) 0%, rgba(8,11,16,.4) 45%, rgba(8,11,16,.2) 100%),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      filter:saturate(1.02);
      opacity:.92;
      z-index:-2;
    }
    .hero::after{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(900px 520px at 12% 18%, rgba(53,224,176,.16), transparent 60%),
        radial-gradient(760px 480px at 86% 14%, rgba(240,180,76,.12), transparent 56%),
        linear-gradient(180deg, rgba(7,10,14,.2), rgba(7,10,14,.64) 70%, rgba(7,10,14,.84));
      z-index:-1;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0, 1.1fr) minmax(320px, .9fr);
      gap:34px;
      align-items:center;
      min-height:calc(100vh - var(--header-h) - 60px);
    }
    .hero-copy{
      padding:26px 0;
      max-width:690px;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      margin:0 0 16px;
      padding:8px 14px;
      border:1px solid rgba(255,255,255,.12);
      border-radius:999px;
      background:rgba(255,255,255,.04);
      color:#d5e4f4;
      font-size:.84rem;
      letter-spacing:.25px;
      backdrop-filter:blur(12px);
    }
    .eyebrow::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 0 6px rgba(53,224,176,.12);
    }
    .hero h1{
      margin:0;
      font-size:clamp(2.2rem, 1.6rem + 2.9vw, 4.6rem);
      line-height:1.08;
      letter-spacing:-.8px;
      max-width:12ch;
    }
    .hero h1 .accent{
      color:#88f7da;
    }
    .hero p{
      margin:18px 0 0;
      max-width:58ch;
      color:#d3deeb;
      font-size:1.04rem;
      line-height:1.9;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:28px;
    }
    .hero-search{
      margin-top:22px;
      display:flex;
      align-items:center;
      gap:10px;
      max-width:560px;
      padding:10px;
      border-radius:18px;
      background:rgba(9,12,18,.65);
      border:1px solid rgba(255,255,255,.1);
      box-shadow:var(--shadow-soft);
      backdrop-filter:blur(16px);
    }
    .hero-search .search-field{
      flex:1;
      display:flex;
      align-items:center;
      gap:10px;
      padding:0 10px;
      min-height:48px;
    }
    .hero-search .search-icon{
      width:18px;
      height:18px;
      border-radius:50%;
      border:2px solid rgba(255,255,255,.38);
      position:relative;
      flex:none;
    }
    .hero-search .search-icon::after{
      content:"";
      position:absolute;
      right:-5px;
      bottom:-5px;
      width:7px;
      height:2px;
      border-radius:999px;
      background:rgba(255,255,255,.38);
      transform:rotate(45deg);
    }
    .hero-search input::placeholder{
      color:#8d99aa;
    }
    .hero-stats{
      display:grid;
      grid-template-columns:repeat(3, minmax(0, 1fr));
      gap:12px;
      margin-top:26px;
    }
    .stat{
      padding:16px 18px;
      border-radius:16px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.1);
      backdrop-filter:blur(12px);
    }
    .stat strong{
      display:block;
      font-size:1.55rem;
      line-height:1;
      color:#fff;
      margin-bottom:6px;
    }
    .stat span{
      color:var(--muted);
      font-size:.92rem;
    }
    .hero-visual{
      position:relative;
      min-height:560px;
      display:flex;
      align-items:stretch;
      justify-content:flex-end;
    }
    .visual-card{
      position:relative;
      width:min(100%, 500px);
      padding:16px;
      border-radius:28px;
      background:linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.03));
      border:1px solid rgba(255,255,255,.12);
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .visual-image{
      position:relative;
      overflow:hidden;
      border-radius:22px;
      min-height:310px;
      border:1px solid rgba(255,255,255,.08);
      background:linear-gradient(135deg, rgba(53,224,176,.14), rgba(240,180,76,.08));
    }
    .visual-image img{
      width:100%;
      height:100%;
      min-height:310px;
      object-fit:cover;
      transform:scale(1.02);
      filter:saturate(1.05) contrast(1.04);
    }
    .visual-image::after{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(180deg, rgba(10,13,19,.1), rgba(10,13,19,.44)),
        radial-gradient(500px 220px at 70% 10%, rgba(53,224,176,.18), transparent 54%);
      pointer-events:none;
    }
    .visual-stack{
      display:grid;
      grid-template-columns:repeat(2, minmax(0, 1fr));
      gap:12px;
      margin-top:14px;
    }
    .mini-panel{
      padding:14px 14px 16px;
      border-radius:18px;
      background:rgba(10,14,20,.72);
      border:1px solid rgba(255,255,255,.09);
      box-shadow:var(--shadow-soft);
      min-height:108px;
    }
    .mini-panel span{
      display:inline-flex;
      margin-bottom:10px;
      padding:6px 10px;
      border-radius:999px;
      background:rgba(53,224,176,.12);
      color:#9ff2dc;
      font-size:.78rem;
      letter-spacing:.2px;
    }
    .mini-panel strong{
      display:block;
      font-size:1.02rem;
      margin-bottom:6px;
    }
    .mini-panel p{
      margin:0;
      color:var(--muted);
      font-size:.9rem;
      line-height:1.7;
    }
    .entry-grid{
      display:grid;
      grid-template-columns:repeat(4, minmax(0, 1fr));
      gap:18px;
    }
    .entry-card{
      position:relative;
      padding:22px 20px;
      border-radius:var(--radius);
      background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
      border:1px solid rgba(255,255,255,.1);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
      transition:transform var(--trans), border-color var(--trans), box-shadow var(--trans), background var(--trans);
      min-height:190px;
    }
    .entry-card:hover{
      transform:translateY(-5px);
      border-color:rgba(53,224,176,.24);
      box-shadow:0 18px 36px rgba(0,0,0,.24);
      background:linear-gradient(180deg, rgba(53,224,176,.08), rgba(255,255,255,.03));
    }
    .entry-ico{
      width:48px;
      height:48px;
      border-radius:16px;
      display:grid;
      place-items:center;
      margin-bottom:14px;
      color:#071410;
      background:linear-gradient(135deg, var(--accent), #78f7d8);
      box-shadow:0 14px 22px rgba(53,224,176,.14);
      font-weight:800;
      letter-spacing:.2px;
    }
    .entry-card h3{
      margin:0 0 8px;
      font-size:1.06rem;
      line-height:1.35;
    }
    .entry-card p{
      margin:0;
      color:var(--muted);
      font-size:.94rem;
      line-height:1.75;
    }
    .entry-foot{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      margin-top:18px;
      color:#dfe8f4;
      font-size:.88rem;
    }
    .entry-foot .arrow{
      width:34px;
      height:34px;
      display:grid;
      place-items:center;
      border-radius:999px;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(255,255,255,.08);
    }

    .split-grid{
      display:grid;
      grid-template-columns:minmax(0, 1.3fr) minmax(280px, .7fr);
      gap:18px;
      align-items:stretch;
    }
    .main-feature{
      position:relative;
      overflow:hidden;
      min-height:430px;
      border-radius:26px;
      border:1px solid rgba(255,255,255,.1);
      background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02));
      box-shadow:var(--shadow);
    }
    .main-feature img{
      position:absolute;
      inset:0;
      width:100%;
      height:100%;
      object-fit:cover;
      filter:saturate(1.04) contrast(1.03);
      transform:scale(1.02);
    }
    .main-feature::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, rgba(7,10,15,.16), rgba(7,10,15,.58) 60%, rgba(7,10,15,.88));
    }
    .feature-body{
      position:absolute;
      inset:auto 0 0 0;
      padding:28px;
      z-index:1;
      display:flex;
      flex-direction:column;
      gap:14px;
    }
    .tag-row{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      min-height:30px;
      padding:0 12px;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.12);
      background:rgba(10,13,18,.48);
      color:#dfe8f3;
      font-size:.8rem;
      letter-spacing:.2px;
    }
    .feature-body h3{
      margin:0;
      font-size:1.65rem;
      line-height:1.2;
    }
    .feature-body p{
      margin:0;
      max-width:44ch;
      color:#d4ddeb;
      line-height:1.8;
      font-size:.98rem;
    }
    .feature-side{
      display:grid;
      gap:18px;
    }
    .side-card{
      position:relative;
      overflow:hidden;
      border-radius:22px;
      min-height:206px;
      border:1px solid rgba(255,255,255,.1);
      background:rgba(255,255,255,.04);
      box-shadow:var(--shadow-soft);
    }
    .side-card img{
      width:100%;
      height:100%;
      min-height:206px;
      object-fit:cover;
      filter:saturate(1.03);
    }
    .side-card .overlay{
      position:absolute;
      inset:0;
      display:flex;
      flex-direction:column;
      justify-content:flex-end;
      padding:18px;
      background:linear-gradient(180deg, rgba(7,10,15,.08), rgba(7,10,15,.86));
    }
    .side-card h4{
      margin:0 0 6px;
      font-size:1.06rem;
    }
    .side-card p{
      margin:0 0 12px;
      color:#d0d9e6;
      font-size:.9rem;
      line-height:1.7;
    }
    .side-card .mini-link{
      display:inline-flex;
      align-items:center;
      gap:6px;
      color:#96f0d7;
      font-size:.88rem;
      font-weight:700;
    }

    .signal-grid{
      display:grid;
      grid-template-columns:repeat(3, minmax(0, 1fr));
      gap:18px;
    }
    .signal-card{
      padding:22px;
      border-radius:22px;
      background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.03));
      border:1px solid rgba(255,255,255,.1);
      box-shadow:var(--shadow-soft);
      transition:transform var(--trans), border-color var(--trans), box-shadow var(--trans);
    }
    .signal-card:hover{
      transform:translateY(-4px);
      border-color:rgba(240,180,76,.18);
    }
    .signal-num{
      display:block;
      font-size:2rem;
      line-height:1;
      color:#fff;
      margin-bottom:10px;
      font-weight:800;
      letter-spacing:-.4px;
    }
    .signal-card h3{
      margin:0 0 8px;
      font-size:1.05rem;
    }
    .signal-card p{
      margin:0;
      color:var(--muted);
      line-height:1.75;
      font-size:.94rem;
    }

    .highlight-grid{
      display:grid;
      grid-template-columns:repeat(4, minmax(0, 1fr));
      gap:16px;
    }
    .highlight{
      padding:22px 18px;
      border-radius:20px;
      border:1px solid rgba(255,255,255,.1);
      background:rgba(255,255,255,.04);
      transition:transform var(--trans), border-color var(--trans), box-shadow var(--trans), background var(--trans);
    }
    .highlight:hover{
      transform:translateY(-4px);
      border-color:rgba(53,224,176,.18);
      background:rgba(255,255,255,.055);
    }
    .highlight .dot{
      width:42px;
      height:42px;
      margin-bottom:12px;
      border-radius:14px;
      display:grid;
      place-items:center;
      color:#071410;
      background:linear-gradient(135deg, #a6ffe8, var(--accent));
      font-weight:800;
    }
    .highlight h3{
      margin:0 0 8px;
      font-size:1.02rem;
    }
    .highlight p{
      margin:0;
      color:var(--muted);
      font-size:.93rem;
      line-height:1.75;
    }

    .steps{
      display:grid;
      grid-template-columns:repeat(3, minmax(0, 1fr));
      gap:16px;
    }
    .step{
      padding:24px;
      border-radius:22px;
      background:
        linear-gradient(180deg, rgba(255,255,255,.055), rgba(255,255,255,.025)),
        radial-gradient(320px 180px at 0% 0%, rgba(53,224,176,.12), transparent 60%);
      border:1px solid rgba(255,255,255,.1);
      box-shadow:var(--shadow-soft);
    }
    .step .index{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      width:42px;
      height:42px;
      border-radius:14px;
      margin-bottom:14px;
      color:#071410;
      background:linear-gradient(135deg, var(--accent), #8cfbe0);
      font-weight:800;
    }
    .step h3{
      margin:0 0 8px;
      font-size:1.06rem;
    }
    .step p{
      margin:0;
      color:var(--muted);
      font-size:.94rem;
      line-height:1.8;
    }

    .faq-grid{
      display:grid;
      grid-template-columns:minmax(0, 1fr);
      gap:12px;
    }
    details.faq-item{
      border-radius:18px;
      border:1px solid rgba(255,255,255,.1);
      background:rgba(255,255,255,.035);
      overflow:hidden;
      transition:border-color var(--trans), transform var(--trans), background var(--trans);
    }
    details.faq-item[open]{
      border-color:rgba(53,224,176,.22);
      background:rgba(255,255,255,.045);
    }
    details.faq-item summary{
      list-style:none;
      cursor:pointer;
      padding:18px 20px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      font-weight:700;
      color:#f2f6fb;
    }
    details.faq-item summary::-webkit-details-marker{
      display:none;
    }
    details.faq-item summary::after{
      content:"+";
      width:30px;
      height:30px;
      display:grid;
      place-items:center;
      flex:none;
      border-radius:999px;
      background:rgba(255,255,255,.06);
      color:#cfe3f4;
      transition:transform var(--trans), background var(--trans), color var(--trans);
    }
    details.faq-item[open] summary::after{
      content:"–";
      background:rgba(53,224,176,.14);
      color:#8af0d5;
    }
    .faq-body{
      padding:0 20px 18px;
      color:var(--muted);
      line-height:1.85;
      font-size:.95rem;
    }

    .cta-box{
      position:relative;
      overflow:hidden;
      padding:34px;
      border-radius:28px;
      border:1px solid rgba(255,255,255,.1);
      background:
        linear-gradient(135deg, rgba(16,23,34,.96), rgba(13,17,24,.9)),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
      box-shadow:var(--shadow);
    }
    .cta-box::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(500px 220px at 16% 20%, rgba(53,224,176,.14), transparent 56%),
        radial-gradient(420px 200px at 86% 14%, rgba(240,180,76,.12), transparent 58%),
        linear-gradient(180deg, rgba(7,10,15,.22), rgba(7,10,15,.72));
      pointer-events:none;
    }
    .cta-inner{
      position:relative;
      z-index:1;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .cta-text{
      max-width:700px;
    }
    .cta-text h2{
      margin:0 0 10px;
      font-size:clamp(1.5rem, 1.1rem + 1.6vw, 2.5rem);
      line-height:1.18;
    }
    .cta-text p{
      margin:0;
      color:#d5deea;
      font-size:1rem;
      line-height:1.85;
    }
    .cta-actions{
      display:flex;
      flex-wrap:wrap;
      justify-content:flex-end;
      gap:12px;
      flex:none;
    }

    .site-footer{
      padding:34px 0 26px;
      border-top:1px solid rgba(255,255,255,.08);
      background:rgba(7,10,15,.72);
    }
    .footer-top{
      display:grid;
      grid-template-columns:minmax(0, 1.2fr) minmax(0, .8fr);
      gap:24px;
      align-items:start;
      padding-bottom:22px;
    }
    .footer-brand strong{
      display:block;
      font-size:1.08rem;
      margin-bottom:8px;
    }
    .footer-brand p{
      margin:0;
      color:var(--muted);
      max-width:58ch;
      line-height:1.85;
      font-size:.94rem;
    }
    .footer-links{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      justify-content:flex-end;
    }
    .footer-links a{
      display:inline-flex;
      align-items:center;
      min-height:38px;
      padding:0 14px;
      border-radius:999px;
      color:#dce6f1;
      border:1px solid rgba(255,255,255,.1);
      background:rgba(255,255,255,.03);
    }
    .footer-links a:hover{
      color:#fff;
      border-color:rgba(53,224,176,.18);
      background:rgba(53,224,176,.08);
    }
    .footer-bottom{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding-top:18px;
      border-top:1px solid rgba(255,255,255,.08);
      color:var(--soft);
      font-size:.9rem;
    }
    .to-top{
      color:#dce8f3;
      display:inline-flex;
      align-items:center;
      gap:8px;
    }
    .to-top:hover{
      color:#8cf1d8;
    }
    .to-top::before{
      content:"↑";
      width:26px;
      height:26px;
      display:grid;
      place-items:center;
      border-radius:999px;
      background:rgba(255,255,255,.06);
    }

    .floating-top{
      position:fixed;
      right:18px;
      bottom:18px;
      width:48px;
      height:48px;
      border-radius:16px;
      border:1px solid rgba(255,255,255,.12);
      background:rgba(12,16,23,.82);
      color:#fff;
      display:grid;
      place-items:center;
      box-shadow:var(--shadow-soft);
      backdrop-filter:blur(10px);
      z-index:35;
    }
    .floating-top:hover{
      transform:translateY(-3px);
      border-color:rgba(53,224,176,.18);
      color:#92f2da;
    }

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

    @media (max-width: 1120px){
      .hero-grid{
        grid-template-columns:1fr;
        min-height:auto;
        gap:24px;
      }
      .hero-visual{
        min-height:auto;
        justify-content:flex-start;
      }
      .visual-card{
        width:100%;
      }
      .entry-grid,
      .highlight-grid{
        grid-template-columns:repeat(2, minmax(0, 1fr));
      }
      .split-grid{
        grid-template-columns:1fr;
      }
      .signal-grid,
      .steps{
        grid-template-columns:1fr;
      }
    }

    @media (max-width: 860px){
      .site-nav{
        position:fixed;
        inset:var(--header-h) 0 auto 0;
        display:none;
        flex-direction:column;
        align-items:stretch;
        gap:8px;
        margin:0;
        padding:16px;
        background:rgba(8,12,18,.96);
        border-bottom:1px solid rgba(255,255,255,.08);
        box-shadow:0 18px 44px rgba(0,0,0,.2);
      }
      .site-nav .nav-link{
        justify-content:flex-start;
        width:100%;
        border-radius:14px;
      }
      .nav-toggle{
        display:inline-grid;
        place-items:center;
      }
      .header-actions .btn-primary{
        display:none;
      }
      body.nav-open .site-nav{
        display:flex;
      }
      body.nav-open .nav-toggle::before{
        top:22px;
        transform:translateX(-50%) rotate(45deg);
      }
      body.nav-open .nav-toggle::after{
        top:22px;
        transform:translateX(-50%) rotate(-45deg);
      }
      body.nav-open .nav-toggle span{
        opacity:0;
      }
      .cta-inner,
      .footer-top{
        grid-template-columns:1fr;
        display:grid;
      }
      .cta-actions,
      .footer-links{
        justify-content:flex-start;
      }
    }

    @media (max-width: 720px){
      :root{--header-h:72px}
      .section,
      .section.tight{
        padding:60px 0;
      }
      .hero{
        padding:24px 0 40px;
      }
      .hero h1{
        max-width:none;
      }
      .hero-stats,
      .entry-grid,
      .highlight-grid{
        grid-template-columns:1fr;
      }
      .hero-search{
        flex-direction:column;
        align-items:stretch;
      }
      .hero-search .btn{
        width:100%;
      }
      .section-head{
        flex-direction:column;
        align-items:flex-start;
      }
      .main-feature{
        min-height:390px;
      }
      .feature-body{
        padding:20px;
      }
      .visual-stack{
        grid-template-columns:1fr;
      }
      .cta-box{
        padding:24px;
      }
      .floating-top{
        right:14px;
        bottom:14px;
      }
    }

    @media (max-width: 520px){
      .container{
        width:min(var(--container), calc(100% - 24px));
      }
      .brand strong{
        font-size:1rem;
      }
      .brand span{
        font-size:.72rem;
      }
      .nav-link,
      .btn{
        min-height:44px;
      }
      .entry-card,
      .signal-card,
      .highlight,
      .step,
      details.faq-item summary,
      .faq-body{
        padding-left:16px;
        padding-right:16px;
      }
      .feature-body h3,
      .cta-text h2{
        font-size:1.35rem;
      }
      .footer-bottom{
        flex-direction:column;
        align-items:flex-start;
      }
    }

/* roulang page: category1 */
:root{
      --bg:#0a0d13;
      --bg-soft:#10151f;
      --panel:#121926;
      --panel-2:#151d2b;
      --text:#eef3f8;
      --muted:#a5b0be;
      --faint:#758192;
      --line:rgba(168,188,212,.18);
      --line-strong:rgba(168,188,212,.28);
      --primary:#49e2c2;
      --primary-2:#31c9ab;
      --accent:#e6b86b;
      --danger:#ff8c6b;
      --shadow:0 22px 60px rgba(0,0,0,.34);
      --shadow-soft:0 14px 35px rgba(0,0,0,.22);
      --radius:18px;
      --radius-sm:14px;
      --radius-lg:24px;
      --container:1180px;
      --gap:24px;
      --transition:.28s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
      background:
        radial-gradient(circle at top left, rgba(73,226,194,.12), transparent 32%),
        radial-gradient(circle at top right, rgba(230,184,107,.10), transparent 22%),
        linear-gradient(180deg, #090c12 0%, #0d1118 48%, #0b0f16 100%);
      color:var(--text);
      line-height:1.7;
      min-height:100vh;
      text-rendering:optimizeLegibility;
      -webkit-font-smoothing:antialiased;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background-image:
        linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
      background-size:36px 36px;
      mask-image:linear-gradient(180deg, rgba(0,0,0,.32), transparent 72%);
      opacity:.38;
      z-index:-1;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    :focus-visible{
      outline:2px solid rgba(73,226,194,.9);
      outline-offset:3px;
    }
    .container{
      width:min(var(--container), calc(100% - 32px));
      margin:0 auto;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:60;
      backdrop-filter:blur(18px);
      background:linear-gradient(180deg, rgba(9,12,18,.92), rgba(9,12,18,.78));
      border-bottom:1px solid rgba(255,255,255,.06);
    }
    .header-inner{
      min-height:74px;
      display:flex;
      align-items:center;
      gap:18px;
    }
    .brand{
      display:flex;
      flex-direction:column;
      gap:1px;
      min-width:0;
    }
    .brand strong{
      font-size:1.02rem;
      line-height:1.1;
      letter-spacing:.2px;
      color:var(--text);
      white-space:nowrap;
    }
    .brand span{
      font-size:.82rem;
      color:var(--muted);
      white-space:nowrap;
    }
    .site-nav{
      margin-left:auto;
      display:flex;
      align-items:center;
      gap:8px;
      padding:8px;
      border:1px solid rgba(255,255,255,.06);
      border-radius:999px;
      background:rgba(255,255,255,.02);
    }
    .nav-link{
      position:relative;
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:10px 16px;
      border-radius:999px;
      color:var(--muted);
      transition:transform var(--transition), background var(--transition), color var(--transition), box-shadow var(--transition);
    }
    .nav-link:hover,
    .nav-link:focus-visible{
      color:var(--text);
      background:rgba(255,255,255,.05);
      transform:translateY(-1px);
    }
    .nav-link.active{
      color:#061112;
      background:linear-gradient(135deg, var(--primary), #b6fff2);
      box-shadow:0 10px 22px rgba(73,226,194,.18);
    }
    .header-actions{
      display:flex;
      align-items:center;
      gap:12px;
      margin-left:4px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      border:1px solid transparent;
      border-radius:999px;
      padding:12px 18px;
      min-height:46px;
      transition:transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
      cursor:pointer;
      user-select:none;
      white-space:nowrap;
    }
    .btn:hover,
    .btn:focus-visible{
      transform:translateY(-2px);
    }
    .btn-primary{
      color:#031311;
      background:linear-gradient(135deg, var(--primary), #9ef6e3);
      box-shadow:0 14px 32px rgba(73,226,194,.18);
    }
    .btn-primary:hover,
    .btn-primary:focus-visible{
      box-shadow:0 18px 34px rgba(73,226,194,.26);
    }
    .btn-secondary{
      color:var(--text);
      background:rgba(255,255,255,.03);
      border-color:rgba(255,255,255,.12);
    }
    .btn-secondary:hover,
    .btn-secondary:focus-visible{
      border-color:rgba(73,226,194,.28);
      background:rgba(73,226,194,.08);
    }
    .nav-toggle{
      display:none;
      width:46px;
      height:46px;
      border-radius:14px;
      border:1px solid rgba(255,255,255,.1);
      background:rgba(255,255,255,.04);
      color:var(--text);
      align-items:center;
      justify-content:center;
      padding:0;
      cursor:pointer;
      transition:background var(--transition), border-color var(--transition), transform var(--transition);
    }
    .nav-toggle:hover,
    .nav-toggle:focus-visible{
      background:rgba(255,255,255,.08);
      border-color:rgba(73,226,194,.26);
      transform:translateY(-1px);
    }
    .nav-toggle span{
      position:relative;
      width:18px;
      height:2px;
      background:currentColor;
      border-radius:2px;
      display:block;
    }
    .nav-toggle span::before,
    .nav-toggle span::after{
      content:"";
      position:absolute;
      left:0;
      width:18px;
      height:2px;
      background:currentColor;
      border-radius:2px;
      transition:transform var(--transition), top var(--transition), opacity var(--transition);
    }
    .nav-toggle span::before{top:-6px}
    .nav-toggle span::after{top:6px}
    .mobile-nav-open .nav-toggle span{background:transparent}
    .mobile-nav-open .nav-toggle span::before{top:0;transform:rotate(45deg)}
    .mobile-nav-open .nav-toggle span::after{top:0;transform:rotate(-45deg)}

    .page-main{
      padding-bottom:34px;
    }
    .page-banner{
      position:relative;
      padding:38px 0 22px;
      overflow:hidden;
    }
    .page-banner::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(135deg, rgba(9,12,18,.22), rgba(9,12,18,.72) 58%, rgba(9,12,18,.96)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      z-index:-2;
      transform:scale(1.03);
    }
    .page-banner::after{
      content:"";
      position:absolute;
      inset:0;
      z-index:-1;
      background:
        radial-gradient(circle at 18% 22%, rgba(73,226,194,.20), transparent 18%),
        radial-gradient(circle at 72% 8%, rgba(230,184,107,.14), transparent 16%);
      pointer-events:none;
    }
    .banner-inner{
      display:grid;
      grid-template-columns:minmax(0,1.2fr) minmax(320px,.9fr);
      gap:24px;
      align-items:stretch;
    }
    .banner-copy,
    .banner-visual{
      border:1px solid rgba(255,255,255,.08);
      background:linear-gradient(180deg, rgba(18,25,38,.9), rgba(12,18,29,.92));
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .banner-copy{
      position:relative;
      padding:34px;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      background:rgba(73,226,194,.09);
      color:#bff8eb;
      border:1px solid rgba(73,226,194,.18);
      font-size:.88rem;
      margin-bottom:16px;
    }
    .banner-copy h1{
      margin:0;
      font-size:clamp(2rem, 4vw, 3.8rem);
      line-height:1.08;
      letter-spacing:-.02em;
    }
    .banner-copy p{
      margin:16px 0 0;
      max-width:56ch;
      color:var(--muted);
      font-size:1.02rem;
    }
    .banner-tags{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin:22px 0 24px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.1);
      color:#dbe6f1;
      font-size:.9rem;
    }
    .tag.accent{
      background:rgba(230,184,107,.11);
      border-color:rgba(230,184,107,.22);
      color:#ffe6bc;
    }
    .banner-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-bottom:24px;
    }
    .banner-stats{
      display:grid;
      grid-template-columns:repeat(3, minmax(0,1fr));
      gap:12px;
    }
    .stat{
      padding:16px 14px;
      border-radius:16px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.08);
    }
    .stat b{
      display:block;
      font-size:1.04rem;
      color:var(--text);
      margin-bottom:4px;
    }
    .stat span{
      color:var(--muted);
      font-size:.88rem;
    }
    .banner-visual{
      display:flex;
      flex-direction:column;
      min-height:100%;
    }
    .visual-frame{
      position:relative;
      min-height:100%;
      overflow:hidden;
      background:linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.01));
    }
    .visual-frame img{
      width:100%;
      height:100%;
      min-height:340px;
      object-fit:cover;
      filter:saturate(1.06) contrast(1.03);
      opacity:.96;
    }
    .visual-overlay{
      position:absolute;
      inset:auto 18px 18px 18px;
      display:grid;
      gap:10px;
    }
    .overlay-card{
      padding:14px 14px 13px;
      border-radius:16px;
      background:rgba(11,16,24,.66);
      border:1px solid rgba(255,255,255,.09);
      backdrop-filter:blur(10px);
      box-shadow:var(--shadow-soft);
    }
    .overlay-card strong{
      display:block;
      font-size:.95rem;
      margin-bottom:4px;
    }
    .overlay-card small{
      color:var(--muted);
      line-height:1.5;
    }
    .overlay-mini{
      display:flex;
      gap:10px;
      align-items:center;
      padding:12px 14px;
      border-radius:16px;
      background:rgba(73,226,194,.12);
      border:1px solid rgba(73,226,194,.18);
      color:#e9fffb;
    }
    .overlay-mini .dot{
      width:11px;
      height:11px;
      border-radius:50%;
      background:var(--primary);
      box-shadow:0 0 0 6px rgba(73,226,194,.12);
      flex:none;
    }
    .overlay-mini em{
      font-style:normal;
      color:#d3fdf5;
    }

    .filter-bar{
      padding:12px 0 6px;
      margin-bottom:8px;
    }
    .filter-inner{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      align-items:center;
      justify-content:space-between;
      padding:16px 18px;
      border-radius:var(--radius);
      background:rgba(17,23,34,.76);
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
    }
    .chip-group,
    .sort-group{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      align-items:center;
    }
    .chip{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:10px 14px;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.1);
      background:rgba(255,255,255,.03);
      color:var(--muted);
      font-size:.92rem;
      transition:transform var(--transition), background var(--transition), color var(--transition), border-color var(--transition);
      cursor:default;
    }
    .chip:hover{
      transform:translateY(-1px);
      color:var(--text);
      background:rgba(255,255,255,.06);
      border-color:rgba(255,255,255,.18);
    }
    .chip.active{
      color:#081414;
      background:linear-gradient(135deg, var(--primary), #a2f8e8);
      border-color:transparent;
    }
    .sort-group .chip{
      background:rgba(255,255,255,.02);
    }
    .mini-search{
      display:flex;
      gap:10px;
      align-items:center;
      min-width:min(100%, 340px);
      flex:1 1 280px;
      justify-content:flex-end;
    }
    .mini-search input{
      width:min(100%, 280px);
      flex:1 1 auto;
      min-height:46px;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.1);
      background:rgba(7,11,17,.82);
      color:var(--text);
      padding:0 16px;
      transition:border-color var(--transition), box-shadow var(--transition), background var(--transition);
    }
    .mini-search input::placeholder{color:#7f8b98}
    .mini-search input:focus{
      outline:none;
      border-color:rgba(73,226,194,.36);
      box-shadow:0 0 0 4px rgba(73,226,194,.08);
      background:rgba(8,13,19,.94);
    }

    .catalog-section{
      padding:24px 0 8px;
    }
    .catalog-layout{
      display:grid;
      grid-template-columns:minmax(0,1.56fr) minmax(290px,.78fr);
      gap:24px;
      align-items:start;
    }
    .catalog-main{
      display:grid;
      gap:18px;
    }
    .section-head{
      display:flex;
      flex-wrap:wrap;
      justify-content:space-between;
      align-items:end;
      gap:12px;
      margin-bottom:2px;
    }
    .section-head h2{
      margin:0;
      font-size:1.42rem;
      line-height:1.25;
      letter-spacing:-.01em;
    }
    .section-head p{
      margin:0;
      color:var(--muted);
      max-width:60ch;
      font-size:.98rem;
    }
    .feature-card{
      display:grid;
      grid-template-columns:minmax(0,1.06fr) minmax(260px,.94fr);
      gap:0;
      border-radius:var(--radius-lg);
      overflow:hidden;
      border:1px solid rgba(255,255,255,.08);
      background:linear-gradient(180deg, rgba(20,27,40,.95), rgba(13,18,28,.95));
      box-shadow:var(--shadow);
      transition:transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }
    .feature-card:hover,
    .entry-card:hover,
    .info-card:hover,
    .side-card:hover{
      transform:translateY(-4px);
      box-shadow:0 20px 45px rgba(0,0,0,.28);
      border-color:rgba(73,226,194,.22);
    }
    .feature-media{
      position:relative;
      min-height:320px;
      overflow:hidden;
    }
    .feature-media img{
      width:100%;
      height:100%;
      object-fit:cover;
      min-height:320px;
    }
    .feature-media::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, rgba(9,12,18,.06), rgba(9,12,18,.55));
    }
    .feature-copy{
      padding:28px;
      display:flex;
      flex-direction:column;
      justify-content:center;
      gap:14px;
    }
    .feature-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      width:max-content;
      padding:7px 11px;
      border-radius:999px;
      background:rgba(73,226,194,.08);
      color:#c9fff3;
      border:1px solid rgba(73,226,194,.16);
      font-size:.88rem;
    }
    .feature-copy h3{
      margin:0;
      font-size:1.5rem;
      line-height:1.25;
    }
    .feature-copy p{
      margin:0;
      color:var(--muted);
    }
    .info-line{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .info-pill{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.09);
      color:#dce6ef;
      font-size:.86rem;
    }
    .feature-actions{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:4px;
    }

    .card-grid{
      display:grid;
      grid-template-columns:repeat(2, minmax(0,1fr));
      gap:18px;
    }
    .entry-card{
      display:flex;
      flex-direction:column;
      min-height:100%;
      border-radius:var(--radius);
      overflow:hidden;
      border:1px solid rgba(255,255,255,.08);
      background:linear-gradient(180deg, rgba(18,25,38,.95), rgba(13,18,27,.96));
      box-shadow:var(--shadow-soft);
      transition:transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }
    .entry-thumb{
      position:relative;
      aspect-ratio:16/9;
      overflow:hidden;
      background:#101521;
    }
    .entry-thumb img{
      width:100%;
      height:100%;
      object-fit:cover;
      transition:transform .5s ease;
    }
    .entry-card:hover .entry-thumb img{transform:scale(1.03)}
    .entry-body{
      display:flex;
      flex-direction:column;
      gap:12px;
      padding:18px;
    }
    .entry-tags{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
    }
    .entry-tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:6px 10px;
      border-radius:999px;
      background:rgba(73,226,194,.08);
      color:#c9fff3;
      border:1px solid rgba(73,226,194,.16);
      font-size:.8rem;
    }
    .entry-tag.soft{
      background:rgba(255,255,255,.04);
      border-color:rgba(255,255,255,.08);
      color:#d8e2ec;
    }
    .entry-body h3{
      margin:0;
      font-size:1.15rem;
      line-height:1.35;
    }
    .entry-body p{
      margin:0;
      color:var(--muted);
      font-size:.95rem;
      line-height:1.68;
    }
    .entry-meta{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      color:#95a4b4;
      font-size:.84rem;
      margin-top:auto;
    }
    .entry-action{
      margin-top:4px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
    }
    .entry-action .action-link{
      color:#dffdf7;
      display:inline-flex;
      align-items:center;
      gap:6px;
      transition:color var(--transition), transform var(--transition);
    }
    .entry-action .action-link:hover{color:#ffffff;transform:translateX(2px)}
    .entry-action .heat{
      color:#ffd9a3;
      font-size:.85rem;
    }

    .catalog-side{
      display:grid;
      gap:16px;
      position:sticky;
      top:96px;
    }
    .side-card{
      padding:18px;
      border-radius:var(--radius);
      border:1px solid rgba(255,255,255,.08);
      background:linear-gradient(180deg, rgba(18,25,38,.92), rgba(12,18,28,.94));
      box-shadow:var(--shadow-soft);
      transition:transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }
    .side-card h3{
      margin:0 0 12px;
      font-size:1.03rem;
      line-height:1.3;
    }
    .side-list{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:10px;
    }
    .side-list li{
      display:flex;
      justify-content:space-between;
      gap:12px;
      padding:11px 0;
      border-bottom:1px dashed rgba(255,255,255,.08);
    }
    .side-list li:last-child{border-bottom:none;padding-bottom:0}
    .side-list a{
      color:var(--text);
      transition:color var(--transition), transform var(--transition);
    }
    .side-list a:hover{color:#bff8eb;transform:translateX(2px)}
    .side-list small{
      color:var(--muted);
      white-space:nowrap;
    }
    .side-note{
      color:var(--muted);
      margin:0;
      font-size:.95rem;
    }
    .home-link{
      margin-top:12px;
      display:inline-flex;
    }

    .insight-section{
      padding:26px 0 10px;
    }
    .insight-grid{
      display:grid;
      grid-template-columns:repeat(3, minmax(0,1fr));
      gap:16px;
    }
    .insight-card{
      padding:20px 18px;
      border-radius:var(--radius);
      background:linear-gradient(180deg, rgba(17,24,36,.92), rgba(11,16,24,.96));
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
      transition:transform var(--transition), border-color var(--transition), box-shadow var(--transition);
    }
    .insight-head{
      display:flex;
      gap:12px;
      align-items:center;
      margin-bottom:10px;
    }
    .icon-badge{
      width:44px;
      height:44px;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg, rgba(73,226,194,.15), rgba(73,226,194,.05));
      border:1px solid rgba(73,226,194,.16);
      color:#bff8eb;
      flex:none;
    }
    .icon-badge svg{
      width:22px;
      height:22px;
      stroke:currentColor;
      fill:none;
      stroke-width:1.8;
      stroke-linecap:round;
      stroke-linejoin:round;
    }
    .insight-card h3{
      margin:0;
      font-size:1.03rem;
    }
    .insight-card p{
      margin:0;
      color:var(--muted);
      font-size:.93rem;
      line-height:1.66;
    }

    .faq-section{
      padding:28px 0 10px;
    }
    .faq-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) minmax(280px,.56fr);
      gap:20px;
      align-items:start;
    }
    .faq-panel,
    .faq-aside{
      border-radius:var(--radius-lg);
      border:1px solid rgba(255,255,255,.08);
      background:linear-gradient(180deg, rgba(18,25,38,.93), rgba(11,16,24,.95));
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    .faq-panel{
      padding:18px;
    }
    .faq-item{
      border-bottom:1px solid rgba(255,255,255,.08);
    }
    .faq-item:last-child{border-bottom:none}
    .faq-item summary{
      list-style:none;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding:18px 6px;
      cursor:pointer;
      font-weight:600;
      color:var(--text);
    }
    .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;
      flex:none;
      color:#cfe8e1;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.08);
      transition:transform var(--transition), background var(--transition);
    }
    .faq-item[open] summary::after{
      content:"–";
      background:rgba(73,226,194,.12);
      color:#e7fffb;
    }
    .faq-item p{
      margin:0;
      padding:0 6px 18px;
      color:var(--muted);
    }
    .faq-aside{
      padding:20px;
      display:grid;
      gap:14px;
    }
    .faq-aside h3{
      margin:0;
      font-size:1.04rem;
    }
    .faq-box{
      padding:14px;
      border-radius:16px;
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.03);
    }
    .faq-box strong{
      display:block;
      margin-bottom:6px;
      font-size:.96rem;
    }
    .faq-box p{
      margin:0;
      color:var(--muted);
      font-size:.93rem;
    }

    .cta-section{
      padding:28px 0 14px;
    }
    .cta-panel{
      position:relative;
      display:grid;
      grid-template-columns:minmax(0,1.1fr) minmax(240px,.9fr);
      gap:22px;
      align-items:center;
      padding:28px;
      border-radius:var(--radius-lg);
      border:1px solid rgba(73,226,194,.16);
      background:
        linear-gradient(135deg, rgba(20,29,42,.95), rgba(13,18,29,.98) 56%, rgba(16,20,31,.98)),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .cta-panel::after{
      content:"";
      position:absolute;
      inset:0;
      background:radial-gradient(circle at 82% 18%, rgba(73,226,194,.15), transparent 20%);
      pointer-events:none;
    }
    .cta-copy{
      position:relative;
      z-index:1;
    }
    .cta-copy h2{
      margin:0 0 10px;
      font-size:1.6rem;
      line-height:1.25;
    }
    .cta-copy p{
      margin:0;
      max-width:60ch;
      color:var(--muted);
    }
    .cta-actions{
      position:relative;
      z-index:1;
      display:flex;
      justify-content:flex-end;
      flex-wrap:wrap;
      gap:12px;
    }
    .cta-panel .btn{
      min-width:140px;
    }

    .site-footer{
      margin-top:10px;
      border-top:1px solid rgba(255,255,255,.08);
      background:linear-gradient(180deg, rgba(9,12,18,.78), rgba(7,10,15,.96));
      padding:26px 0 30px;
    }
    .footer-top{
      display:flex;
      gap:22px;
      justify-content:space-between;
      align-items:flex-start;
      padding-bottom:18px;
      border-bottom:1px solid rgba(255,255,255,.08);
    }
    .footer-brand{
      max-width:54ch;
    }
    .footer-brand strong{
      display:block;
      font-size:1.08rem;
      margin-bottom:8px;
    }
    .footer-brand p{
      margin:0;
      color:var(--muted);
      font-size:.94rem;
    }
    .footer-links{
      display:flex;
      flex-wrap:wrap;
      gap:10px 14px;
      justify-content:flex-end;
      align-items:center;
    }
    .footer-links a{
      color:var(--muted);
      transition:color var(--transition), transform var(--transition);
    }
    .footer-links a:hover,
    .footer-links a:focus-visible{
      color:#d9fff7;
      transform:translateY(-1px);
    }
    .footer-bottom{
      display:flex;
      flex-wrap:wrap;
      justify-content:space-between;
      gap:10px 16px;
      padding-top:16px;
      color:#8592a2;
      font-size:.86rem;
    }

    @media (max-width: 1080px){
      .banner-inner,
      .catalog-layout,
      .faq-layout,
      .cta-panel{
        grid-template-columns:1fr;
      }
      .catalog-side{
        position:static;
      }
      .feature-card{
        grid-template-columns:1fr;
      }
      .feature-media img{
        min-height:240px;
      }
      .insight-grid{
        grid-template-columns:1fr 1fr;
      }
    }
    @media (max-width: 860px){
      .site-nav{
        position:absolute;
        top:74px;
        left:16px;
        right:16px;
        margin-left:0;
        flex-direction:column;
        align-items:stretch;
        padding:12px;
        border-radius:22px;
        background:rgba(11,15,22,.98);
        box-shadow:var(--shadow);
        border:1px solid rgba(255,255,255,.08);
        display:none;
      }
      .site-nav.open{display:flex}
      .nav-link{
        width:100%;
        justify-content:center;
      }
      .nav-toggle{display:inline-flex}
      .header-inner{justify-content:space-between}
      .header-actions{margin-left:auto}
      .banner-copy,
      .faq-panel,
      .cta-panel,
      .side-card{
        padding:18px;
      }
      .card-grid{
        grid-template-columns:1fr;
      }
      .banner-stats{
        grid-template-columns:1fr;
      }
      .filter-inner{
        padding:14px;
      }
      .mini-search{
        justify-content:flex-start;
        width:100%;
      }
      .mini-search input{
        width:100%;
      }
      .insight-grid{
        grid-template-columns:1fr;
      }
      .footer-top{
        flex-direction:column;
      }
      .footer-links{
        justify-content:flex-start;
      }
      .cta-actions{
        justify-content:flex-start;
      }
    }
    @media (max-width: 520px){
      .container{
        width:min(var(--container), calc(100% - 22px));
      }
      .site-header .header-inner{
        min-height:68px;
      }
      .brand strong{
        font-size:.98rem;
      }
      .brand span{
        font-size:.76rem;
      }
      .header-actions .btn-primary{
        display:none;
      }
      .page-banner{
        padding-top:22px;
      }
      .banner-copy h1{
        font-size:1.82rem;
      }
      .section-head h2,
      .cta-copy h2{
        font-size:1.28rem;
      }
      .entry-body{
        padding:16px;
      }
      .entry-body h3{
        font-size:1.04rem;
      }
      .faq-item summary{
        padding:16px 4px;
      }
      .cta-panel{
        padding:18px;
      }
      .cta-panel .btn{
        width:100%;
      }
      .banner-actions .btn{
        width:100%;
      }
      .banner-actions{
        width:100%;
      }
      .banner-actions .btn{
        justify-content:center;
      }
      .filter-inner{
        gap:12px;
      }
      .chip-group,.sort-group{
        gap:8px;
      }
      .chip{
        padding:9px 12px;
      }
    }