/* roulang page: index */
:root{
      --bg:#0b1020;
      --bg-2:#11182d;
      --panel:#131b33;
      --panel-2:#17213d;
      --card:#18233f;
      --line:rgba(255,255,255,.08);
      --text:#e8edf8;
      --muted:#a8b4d2;
      --muted-2:#7f8bad;
      --brand:#8b5cf6;
      --brand-2:#22d3ee;
      --brand-3:#f97316;
      --success:#34d399;
      --warning:#fbbf24;
      --danger:#fb7185;
      --shadow:0 18px 50px rgba(2,6,23,.35);
      --shadow-soft:0 10px 24px rgba(2,6,23,.22);
      --radius:22px;
      --radius-sm:16px;
      --container:1200px;
      --sidebar:280px;
      --topbar:72px;
      --ease:cubic-bezier(.2,.8,.2,1);
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:"Inter","Noto Sans SC",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
      background:
        radial-gradient(circle at top left, rgba(139,92,246,.18), transparent 26%),
        radial-gradient(circle at 80% 10%, rgba(34,211,238,.16), transparent 24%),
        radial-gradient(circle at 50% 100%, rgba(249,115,22,.10), transparent 22%),
        linear-gradient(180deg, #09101e 0%, #0b1020 55%, #0a0f1a 100%);
      color:var(--text);
      line-height:1.75;
      letter-spacing:.01em;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none;transition:all .25s var(--ease)}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    ::selection{background:rgba(139,92,246,.35);color:#fff}
    :focus-visible{outline:3px solid rgba(34,211,238,.75);outline-offset:3px;border-radius:12px}

    .app-shell{
      min-height:100vh;
      display:flex;
      align-items:stretch;
    }

    .sidebar{
      position:fixed;
      inset:0 auto 0 0;
      width:var(--sidebar);
      padding:24px 18px;
      background:linear-gradient(180deg, rgba(16,24,44,.95), rgba(10,15,28,.94));
      border-right:1px solid var(--line);
      backdrop-filter:blur(18px);
      z-index:40;
      display:flex;
      flex-direction:column;
      gap:18px;
    }

    .brand{
      display:flex;
      align-items:center;
      gap:14px;
      padding:10px 12px 12px;
      border-radius:18px;
      background:linear-gradient(135deg, rgba(139,92,246,.14), rgba(34,211,238,.10));
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
    }
    .brand-mark{
      width:44px;height:44px;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg, var(--brand), var(--brand-2));
      color:#fff;
      font-weight:900;
      box-shadow:0 10px 26px rgba(139,92,246,.35);
      flex:none;
    }
    .brand-text{min-width:0}
    .brand-text strong{
      display:block;
      font-size:1.02rem;
      line-height:1.2;
      letter-spacing:.01em;
    }
    .brand-text span{
      display:block;
      color:var(--muted);
      font-size:.84rem;
      margin-top:3px;
    }

    .nav-block{
      display:flex;
      flex-direction:column;
      gap:10px;
      margin-top:6px;
    }
    .nav-label{
      padding:0 12px;
      color:var(--muted-2);
      font-size:.8rem;
      text-transform:uppercase;
      letter-spacing:.14em;
    }
    .side-nav{
      display:flex;
      flex-direction:column;
      gap:8px;
    }
    .nav-link{
      display:flex;
      align-items:center;
      gap:12px;
      padding:12px 14px;
      border-radius:16px;
      color:var(--text);
      background:transparent;
      border:1px solid transparent;
    }
    .nav-link i{
      width:18px;
      text-align:center;
      color:#c7d2fe;
    }
    .nav-link:hover{
      background:rgba(255,255,255,.05);
      border-color:rgba(255,255,255,.06);
      transform:translateX(4px);
    }
    .nav-link.active{
      background:linear-gradient(135deg, rgba(139,92,246,.22), rgba(34,211,238,.12));
      border-color:rgba(139,92,246,.30);
      box-shadow:0 12px 24px rgba(139,92,246,.16);
    }

    .sidebar-card{
      margin-top:auto;
      padding:16px;
      border-radius:18px;
      background:linear-gradient(180deg, rgba(23,33,61,.95), rgba(18,25,45,.96));
      border:1px solid rgba(255,255,255,.06);
      box-shadow:var(--shadow-soft);
    }
    .sidebar-card h3{
      margin:0 0 8px;
      font-size:1rem;
    }
    .sidebar-card p{
      margin:0 0 14px;
      color:var(--muted);
      font-size:.92rem;
    }

    .content{
      width:100%;
      margin-left:var(--sidebar);
      padding:26px 28px 40px;
    }
    .container{
      max-width:var(--container);
      margin:0 auto;
    }

    .mobile-topbar{
      display:none;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      position:sticky;
      top:0;
      z-index:35;
      margin:-26px -28px 22px;
      padding:14px 18px;
      background:rgba(10,15,28,.88);
      backdrop-filter:blur(16px);
      border-bottom:1px solid var(--line);
    }
    .mobile-brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:0;
    }
    .menu-btn{
      width:44px;height:44px;
      display:grid;place-items:center;
      border-radius:14px;
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.08);
      color:var(--text);
      cursor:pointer;
    }
    .menu-btn:hover{background:rgba(255,255,255,.1)}
    .mobile-title{
      min-width:0;
    }
    .mobile-title strong{
      display:block;
      font-size:1rem;
      line-height:1.2;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .mobile-title span{
      display:block;
      color:var(--muted);
      font-size:.8rem;
    }

    .hero{
      display:grid;
      grid-template-columns:1.25fr .9fr;
      gap:22px;
      align-items:stretch;
      margin-top:6px;
    }
    .hero-main,
    .hero-side,
    .panel,
    .faq,
    .cta,
    .section{
      border-radius:var(--radius);
      background:linear-gradient(180deg, rgba(22,30,54,.94), rgba(16,23,43,.96));
      border:1px solid rgba(255,255,255,.07);
      box-shadow:var(--shadow);
    }
    .hero-main{
      padding:30px;
      position:relative;
      overflow:hidden;
    }
    .hero-main::before{
      content:"";
      position:absolute;
      inset:-20% -15% auto auto;
      width:340px;
      height:340px;
      background:radial-gradient(circle, rgba(139,92,246,.18), transparent 68%);
      pointer-events:none;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      background:rgba(34,211,238,.12);
      border:1px solid rgba(34,211,238,.22);
      color:#d9fbff;
      font-size:.86rem;
      font-weight:600;
      margin-bottom:16px;
    }
    .hero h1{
      margin:0 0 14px;
      font-size:clamp(2rem, 4vw, 3.8rem);
      line-height:1.08;
      letter-spacing:-.03em;
      max-width:12em;
    }
    .hero p{
      margin:0 0 20px;
      color:var(--muted);
      font-size:1.02rem;
      max-width:58ch;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:18px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:48px;
      padding:0 18px;
      border-radius:14px;
      border:1px solid transparent;
      cursor:pointer;
      font-weight:700;
      transition:transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease);
      white-space:nowrap;
    }
    .btn-primary{
      background:linear-gradient(135deg, var(--brand), var(--brand-2));
      color:#fff;
      box-shadow:0 14px 28px rgba(139,92,246,.28);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(139,92,246,.34)}
    .btn-ghost{
      background:rgba(255,255,255,.05);
      border-color:rgba(255,255,255,.08);
      color:var(--text);
    }
    .btn-ghost:hover{transform:translateY(-2px);background:rgba(255,255,255,.08)}

    .hero-meta{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:12px;
      margin-top:24px;
    }
    .mini-stat{
      padding:16px;
      border-radius:18px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.06);
    }
    .mini-stat strong{
      display:block;
      font-size:1.35rem;
      line-height:1.1;
      margin-bottom:6px;
    }
    .mini-stat span{color:var(--muted);font-size:.9rem}

    .hero-side{
      padding:22px;
      display:flex;
      flex-direction:column;
      gap:14px;
    }
    .side-box{
      border-radius:20px;
      padding:18px;
      background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.03));
      border:1px solid rgba(255,255,255,.07);
    }
    .side-box h3{
      margin:0 0 8px;
      font-size:1.04rem;
    }
    .side-box p{
      margin:0;
      color:var(--muted);
      font-size:.94rem;
    }
    .tag-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:12px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:7px 11px;
      border-radius:999px;
      background:rgba(139,92,246,.12);
      color:#ede9fe;
      border:1px solid rgba(139,92,246,.18);
      font-size:.84rem;
      font-weight:600;
    }
    .tag.alt{
      background:rgba(34,211,238,.1);
      border-color:rgba(34,211,238,.18);
      color:#d8fbff;
    }
    .tag.warn{
      background:rgba(249,115,22,.12);
      border-color:rgba(249,115,22,.2);
      color:#ffedd5;
    }

    .section{
      margin-top:22px;
      padding:24px;
    }
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:18px;
      margin-bottom:18px;
    }
    .section-head h2{
      margin:0;
      font-size:1.45rem;
      letter-spacing:-.02em;
    }
    .section-head p{
      margin:0;
      color:var(--muted);
      max-width:58ch;
      font-size:.95rem;
    }

    .card-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:16px;
    }
    .info-card{
      position:relative;
      padding:20px;
      border-radius:20px;
      background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.03));
      border:1px solid rgba(255,255,255,.07);
      overflow:hidden;
      min-height:186px;
    }
    .info-card::after{
      content:"";
      position:absolute;
      inset:auto -20px -20px auto;
      width:120px;height:120px;
      background:radial-gradient(circle, rgba(34,211,238,.15), transparent 68%);
      pointer-events:none;
    }
    .info-card .icon{
      width:44px;height:44px;
      border-radius:14px;
      display:grid;place-items:center;
      margin-bottom:14px;
      background:linear-gradient(135deg, rgba(139,92,246,.18), rgba(34,211,238,.14));
      border:1px solid rgba(255,255,255,.08);
      color:#fff;
    }
    .info-card h3{margin:0 0 10px;font-size:1.06rem}
    .info-card p{margin:0;color:var(--muted);font-size:.93rem}
    .info-card ul{
      margin:14px 0 0;
      padding:0;
      list-style:none;
      display:flex;
      flex-direction:column;
      gap:8px;
    }
    .info-card li{
      display:flex;
      align-items:flex-start;
      gap:8px;
      color:#dce4fb;
      font-size:.92rem;
    }
    .info-card li i{color:var(--success);margin-top:4px}

    .feature-strip{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:16px;
    }
    .feature-panel{
      padding:22px;
      border-radius:20px;
      background:linear-gradient(135deg, rgba(139,92,246,.13), rgba(34,211,238,.08));
      border:1px solid rgba(255,255,255,.08);
    }
    .feature-panel h3{
      margin:0 0 10px;
      font-size:1.22rem;
    }
    .feature-panel p{
      margin:0 0 14px;
      color:var(--muted);
    }
    .check-list{
      display:grid;
      gap:10px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .check-list li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:#e9f1ff;
      font-size:.95rem;
    }
    .check-list i{
      color:var(--success);
      margin-top:4px;
    }
    .panel-aside{
      padding:22px;
      display:flex;
      flex-direction:column;
      gap:14px;
    }
    .step{
      display:flex;
      gap:14px;
      padding:16px;
      border-radius:18px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.06);
    }
    .step-num{
      width:34px;height:34px;
      border-radius:12px;
      flex:none;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg, var(--brand-3), var(--brand));
      color:#fff;
      font-weight:800;
    }
    .step h4{margin:0 0 6px;font-size:1rem}
    .step p{margin:0;color:var(--muted);font-size:.92rem}

    .content-rows{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:16px;
    }
    .content-card{
      padding:20px;
      border-radius:20px;
      background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.03));
      border:1px solid rgba(255,255,255,.07);
    }
    .content-card .topline{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-bottom:12px;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:6px 10px;
      border-radius:999px;
      background:rgba(34,211,238,.1);
      border:1px solid rgba(34,211,238,.18);
      color:#d8fbff;
      font-size:.8rem;
      font-weight:600;
    }
    .content-card h3{
      margin:0 0 10px;
      font-size:1.05rem;
    }
    .content-card p{
      margin:0;
      color:var(--muted);
      font-size:.94rem;
    }
    .meter{
      margin-top:14px;
      height:10px;
      border-radius:999px;
      background:rgba(255,255,255,.06);
      overflow:hidden;
    }
    .meter > span{
      display:block;
      height:100%;
      border-radius:inherit;
      background:linear-gradient(90deg, var(--brand), var(--brand-2));
    }

    .stats-grid{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:14px;
    }
    .stat-box{
      padding:18px;
      border-radius:20px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.06);
    }
    .stat-box strong{
      display:block;
      font-size:1.7rem;
      line-height:1.1;
      margin-bottom:8px;
    }
    .stat-box span{
      color:var(--muted);
      font-size:.9rem;
    }

    .faq{
      padding:24px;
    }
    .accordion{
      display:grid;
      gap:12px;
    }
    .accordion-item{
      border-radius:18px;
      overflow:hidden;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.06);
    }
    .accordion-title{
      width:100%;
      background:transparent;
      color:var(--text);
      border:0;
      padding:18px 18px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      cursor:pointer;
      text-align:left;
      font-weight:700;
    }
    .accordion-title i{
      color:#c4d7ff;
      transition:transform .25s var(--ease);
    }
    .accordion-item.open .accordion-title i{transform:rotate(180deg)}
    .accordion-content{
      max-height:0;
      overflow:hidden;
      transition:max-height .32s var(--ease);
    }
    .accordion-content p{
      margin:0;
      padding:0 18px 18px;
      color:var(--muted);
    }

    .cta{
      margin-top:22px;
      padding:24px;
      background:
        linear-gradient(135deg, rgba(139,92,246,.18), rgba(34,211,238,.10)),
        linear-gradient(180deg, rgba(17,24,45,.96), rgba(16,22,40,.96));
    }
    .cta-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:18px;
      align-items:center;
    }
    .cta h2{
      margin:0 0 10px;
      font-size:1.55rem;
    }
    .cta p{
      margin:0;
      color:var(--muted);
    }
    .cta-form{
      display:grid;
      gap:12px;
      padding:18px;
      border-radius:20px;
      background:rgba(8,12,23,.35);
      border:1px solid rgba(255,255,255,.08);
    }
    .field-row{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:12px;
    }
    .field{
      display:grid;
      gap:8px;
    }
    .field label{
      color:#dfe7fb;
      font-size:.9rem;
      font-weight:600;
    }
    .field input,
    .field select,
    .field textarea{
      width:100%;
      border-radius:14px;
      border:1px solid rgba(255,255,255,.10);
      background:rgba(255,255,255,.05);
      color:var(--text);
      padding:12px 14px;
      transition:border-color .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease);
    }
    .field input::placeholder,
    .field textarea::placeholder{color:#8fa0c5}
    .field input:focus,
    .field select:focus,
    .field textarea:focus{
      outline:none;
      border-color:rgba(34,211,238,.45);
      box-shadow:0 0 0 4px rgba(34,211,238,.12);
      background:rgba(255,255,255,.07);
    }
    .helper{
      color:var(--muted-2);
      font-size:.82rem;
    }

    footer{
      margin-top:22px;
      padding:20px 4px 0;
      color:var(--muted);
    }
    .footer-wrap{
      padding:20px 0 8px;
      border-top:1px solid var(--line);
      display:flex;
      flex-wrap:wrap;
      justify-content:space-between;
      gap:16px;
    }
    .footer-brand strong{display:block;color:var(--text);font-size:1rem}
    .footer-brand span{display:block;font-size:.86rem;margin-top:4px}
    .footer-links{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      align-items:center;
    }
    .footer-links a{
      color:var(--muted);
    }
    .footer-links a:hover{color:#fff}
    .copyright{
      width:100%;
      margin-top:2px;
      color:#8da0c6;
      font-size:.84rem;
    }

    .mobile-menu{
      display:none;
      position:fixed;
      inset:0;
      z-index:60;
      background:rgba(3,7,18,.62);
      backdrop-filter:blur(10px);
    }
    .mobile-menu.open{display:block}
    .mobile-panel{
      width:min(86vw, 320px);
      height:100%;
      background:linear-gradient(180deg, rgba(16,24,44,.98), rgba(10,15,28,.98));
      border-right:1px solid var(--line);
      padding:18px;
      display:flex;
      flex-direction:column;
      gap:14px;
      box-shadow:var(--shadow);
      transform:translateX(-6px);
      animation:slideIn .28s var(--ease) both;
    }
    @keyframes slideIn{
      from{transform:translateX(-20px);opacity:.5}
      to{transform:translateX(0);opacity:1}
    }
    .mobile-close{
      align-self:flex-end;
      width:42px;height:42px;
      border-radius:14px;
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.06);
      color:#fff;
      cursor:pointer;
    }

    .spacer{height:4px}

    @media (max-width: 1180px){
      .hero{grid-template-columns:1fr}
      .cta-grid{grid-template-columns:1fr}
      .feature-strip{grid-template-columns:1fr}
      .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    }

    @media (max-width: 1024px){
      .sidebar{width:248px}
      .content{margin-left:248px;padding:22px 18px 34px}
      .hero-main{padding:26px}
      .section,.faq,.cta{padding:20px}
    }

    @media (max-width: 768px){
      .sidebar{display:none}
      .content{margin-left:0;padding:18px 14px 28px}
      .mobile-topbar{display:flex}
      .hero-meta{grid-template-columns:1fr}
      .card-grid,.content-rows,.stats-grid,.field-row{grid-template-columns:1fr}
      .section-head{flex-direction:column;align-items:flex-start}
      .hero-main,.hero-side,.section,.faq,.cta{border-radius:20px}
      .hero h1{max-width:none}
      .hero-main{padding:22px}
    }

    @media (max-width: 520px){
      .mobile-topbar{margin:-18px -14px 18px}
      .hero-actions .btn{width:100%}
      .hero-main p,.section-head p,.cta p{font-size:.93rem}
      .hero-main{padding:20px}
      .stat-box strong{font-size:1.45rem}
      .section,.faq,.cta{padding:18px}
      .info-card,.content-card,.side-box,.step{border-radius:18px}
      .accordion-title{padding:16px}
    }

    .reveal{
      opacity:0;
      transform:translateY(14px);
      transition:opacity .6s var(--ease), transform .6s var(--ease);
    }
    .reveal.in-view{
      opacity:1;
      transform:none;
    }

/* roulang page: category1 */
:root{
      --bg:#090b14;
      --bg-soft:#101525;
      --panel:#151b2d;
      --panel-2:#1b2237;
      --card:#111827;
      --card-hover:#18223a;
      --text:#f7f8ff;
      --muted:#aeb7cc;
      --weak:#78839b;
      --line:rgba(255,255,255,.1);
      --line-strong:rgba(255,255,255,.18);
      --primary:#8b5cf6;
      --primary-2:#ec4899;
      --primary-soft:rgba(139,92,246,.18);
      --accent:#22d3ee;
      --success:#34d399;
      --warning:#fbbf24;
      --danger:#fb7185;
      --radius-sm:12px;
      --radius:20px;
      --radius-lg:30px;
      --shadow:0 24px 70px rgba(0,0,0,.34);
      --shadow-soft:0 18px 45px rgba(8,12,25,.32);
      --sidebar:284px;
      --container:1180px;
      --ease:all .24s ease;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      min-height:100vh;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 20% 8%, rgba(139,92,246,.28), transparent 34%),
        radial-gradient(circle at 82% 18%, rgba(236,72,153,.18), transparent 30%),
        linear-gradient(180deg,#070911 0%,#0c1020 48%,#090b14 100%);
      line-height:1.75;
      overflow-x:hidden;
    }

    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background-image:
        linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
      background-size:46px 46px;
      mask-image:linear-gradient(to bottom,rgba(0,0,0,.85),transparent 72%);
      z-index:-1;
    }

    a{color:inherit;text-decoration:none;transition:var(--ease)}
    a:hover,a:focus{color:#fff}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    ::selection{background:rgba(139,92,246,.55);color:#fff}

    .app-shell{
      display:flex;
      min-height:100vh;
    }

    .sidebar{
      position:fixed;
      left:0;
      top:0;
      bottom:0;
      width:var(--sidebar);
      padding:24px 18px;
      background:rgba(9,12,24,.78);
      backdrop-filter:blur(22px);
      border-right:1px solid var(--line);
      z-index:50;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      box-shadow:18px 0 55px rgba(0,0,0,.18);
    }

    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      padding:10px 8px 18px;
      border-bottom:1px solid var(--line);
    }

    .brand-mark{
      width:46px;
      height:46px;
      border-radius:16px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      box-shadow:0 16px 36px rgba(139,92,246,.36);
      color:#fff;
      flex:0 0 auto;
    }

    .brand-text strong{
      display:block;
      font-size:18px;
      letter-spacing:.02em;
      line-height:1.25;
    }

    .brand-text span{
      display:block;
      margin-top:3px;
      color:var(--muted);
      font-size:12px;
    }

    .nav-title{
      margin:22px 8px 10px;
      color:var(--weak);
      font-size:12px;
      letter-spacing:.14em;
    }

    .side-nav{
      display:flex;
      flex-direction:column;
      gap:9px;
    }

    .nav-link{
      display:flex;
      align-items:center;
      gap:11px;
      min-height:46px;
      padding:12px 13px;
      border:1px solid transparent;
      border-radius:16px;
      color:var(--muted);
      font-weight:650;
      font-size:14px;
      line-height:1.35;
      position:relative;
      overflow:hidden;
    }

    .nav-link i{
      width:22px;
      text-align:center;
      color:#c7cdfa;
    }

    .nav-link:hover{
      transform:translateX(3px);
      color:#fff;
      background:rgba(255,255,255,.06);
      border-color:var(--line);
    }

    .nav-link.active{
      color:#fff;
      background:linear-gradient(135deg,rgba(139,92,246,.28),rgba(236,72,153,.18));
      border-color:rgba(255,255,255,.16);
      box-shadow:0 16px 34px rgba(0,0,0,.18);
    }

    .nav-link.active::before{
      content:"";
      position:absolute;
      left:0;
      top:12px;
      bottom:12px;
      width:4px;
      border-radius:999px;
      background:linear-gradient(180deg,var(--accent),var(--primary-2));
    }

    .sidebar-card{
      margin-top:22px;
      padding:16px;
      border-radius:22px;
      background:linear-gradient(145deg,rgba(34,211,238,.12),rgba(139,92,246,.16));
      border:1px solid var(--line);
    }

    .sidebar-card strong{
      display:block;
      margin-bottom:7px;
      font-size:14px;
    }

    .sidebar-card p{
      margin:0;
      color:var(--muted);
      font-size:12px;
      line-height:1.65;
    }

    .mobile-topbar{
      display:none;
      position:sticky;
      top:0;
      z-index:60;
      padding:12px 16px;
      background:rgba(9,12,24,.84);
      backdrop-filter:blur(18px);
      border-bottom:1px solid var(--line);
    }

    .mobile-topbar-inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
    }

    .menu-toggle{
      border:1px solid var(--line);
      background:rgba(255,255,255,.06);
      color:#fff;
      width:44px;
      height:44px;
      border-radius:14px;
      cursor:pointer;
      transition:var(--ease);
    }

    .menu-toggle:hover,.menu-toggle:focus{
      border-color:rgba(139,92,246,.55);
      box-shadow:0 0 0 4px rgba(139,92,246,.12);
      outline:none;
    }

    .main{
      width:100%;
      margin-left:var(--sidebar);
    }

    .container{
      width:min(var(--container), calc(100% - 48px));
      margin:0 auto;
    }

    .section{
      padding:84px 0;
      position:relative;
    }

    .section-tight{padding:58px 0}

    .hero{
      padding:72px 0 56px;
      min-height:640px;
      display:flex;
      align-items:center;
      position:relative;
      overflow:hidden;
    }

    .hero::after{
      content:"";
      position:absolute;
      right:-120px;
      top:90px;
      width:520px;
      height:520px;
      border-radius:50%;
      background:radial-gradient(circle,rgba(236,72,153,.2),rgba(139,92,246,.06) 52%,transparent 70%);
      filter:blur(2px);
      pointer-events:none;
    }

    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1.04fr) minmax(340px,.96fr);
      gap:42px;
      align-items:center;
    }

    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      color:#e9e7ff;
      background:rgba(255,255,255,.08);
      border:1px solid var(--line);
      font-size:13px;
      font-weight:700;
      margin-bottom:18px;
    }

    .eyebrow i{color:var(--accent)}
    h1,h2,h3,p{margin-top:0}
    h1{
      max-width:850px;
      font-size:clamp(38px,5.3vw,72px);
      line-height:1.05;
      letter-spacing:-.055em;
      margin-bottom:22px;
    }

    .gradient-text{
      background:linear-gradient(90deg,#fff 0%,#ddd6fe 45%,#fbcfe8 100%);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }

    .hero-lead{
      max-width:760px;
      color:var(--muted);
      font-size:18px;
      line-height:1.9;
      margin-bottom:28px;
    }

    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      margin-bottom:30px;
    }

    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:48px;
      padding:13px 20px;
      border-radius:999px;
      border:1px solid var(--line);
      color:#fff;
      font-weight:800;
      line-height:1;
      cursor:pointer;
      transition:var(--ease);
    }

    .btn-primary{
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      border-color:transparent;
      box-shadow:0 18px 42px rgba(139,92,246,.36);
    }

    .btn-primary:hover{
      transform:translateY(-2px);
      box-shadow:0 24px 54px rgba(236,72,153,.32);
    }

    .btn-ghost{
      background:rgba(255,255,255,.06);
    }

    .btn-ghost:hover{
      background:rgba(255,255,255,.1);
      border-color:rgba(255,255,255,.24);
      transform:translateY(-2px);
    }

    .btn:focus{
      outline:none;
      box-shadow:0 0 0 5px rgba(139,92,246,.18),0 18px 42px rgba(139,92,246,.25);
    }

    .trust-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }

    .badge{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:8px 11px;
      border-radius:999px;
      color:#d8def4;
      background:rgba(255,255,255,.065);
      border:1px solid var(--line);
      font-size:13px;
      font-weight:700;
    }

    .badge i{color:var(--success)}

    .showcase{
      position:relative;
      border-radius:34px;
      padding:18px;
      background:linear-gradient(145deg,rgba(255,255,255,.12),rgba(255,255,255,.045));
      border:1px solid var(--line-strong);
      box-shadow:var(--shadow);
      overflow:hidden;
    }

    .showcase::before{
      content:"";
      position:absolute;
      inset:-1px;
      background:
        radial-gradient(circle at 18% 0%,rgba(34,211,238,.18),transparent 38%),
        radial-gradient(circle at 100% 28%,rgba(236,72,153,.18),transparent 32%);
      pointer-events:none;
    }

    .media-wall{
      position:relative;
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:12px;
      z-index:1;
    }

    .media-card{
      min-height:180px;
      border-radius:24px;
      padding:16px;
      background:
        linear-gradient(180deg,rgba(255,255,255,.06),rgba(0,0,0,.32)),
        linear-gradient(135deg,rgba(139,92,246,.42),rgba(34,211,238,.13));
      border:1px solid rgba(255,255,255,.13);
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      overflow:hidden;
      position:relative;
    }

    .media-card:nth-child(2){
      transform:translateY(24px);
      background:
        linear-gradient(180deg,rgba(255,255,255,.06),rgba(0,0,0,.34)),
        linear-gradient(135deg,rgba(236,72,153,.38),rgba(139,92,246,.18));
    }

    .media-card:nth-child(3){
      min-height:150px;
      background:
        linear-gradient(180deg,rgba(255,255,255,.04),rgba(0,0,0,.34)),
        linear-gradient(135deg,rgba(34,211,238,.28),rgba(139,92,246,.18));
    }

    .media-card::after{
      content:"";
      position:absolute;
      width:160px;
      height:160px;
      right:-55px;
      bottom:-65px;
      border-radius:50%;
      background:rgba(255,255,255,.08);
    }

    .play{
      width:46px;
      height:46px;
      border-radius:50%;
      display:grid;
      place-items:center;
      background:rgba(255,255,255,.16);
      border:1px solid rgba(255,255,255,.2);
      backdrop-filter:blur(8px);
    }

    .media-card strong{
      font-size:18px;
      line-height:1.35;
      position:relative;
      z-index:1;
    }

    .media-card span{
      color:#d7ddf3;
      font-size:13px;
      position:relative;
      z-index:1;
    }

    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:24px;
      margin-bottom:30px;
    }

    .section-kicker{
      color:var(--accent);
      font-weight:900;
      letter-spacing:.12em;
      font-size:12px;
      margin-bottom:10px;
    }

    h2{
      font-size:clamp(28px,3.4vw,46px);
      line-height:1.15;
      letter-spacing:-.035em;
      margin-bottom:0;
    }

    .section-desc{
      max-width:520px;
      color:var(--muted);
      margin-bottom:0;
    }

    .grid-3{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
    }

    .grid-2{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:20px;
    }

    .feature-card,.scene-card,.process-card,.faq-item,.note-panel,.rank-card{
      background:rgba(17,24,39,.76);
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:var(--shadow-soft);
      transition:var(--ease);
    }

    .feature-card{
      padding:24px;
      min-height:260px;
      position:relative;
      overflow:hidden;
    }

    .feature-card:hover,.scene-card:hover,.process-card:hover,.rank-card:hover{
      transform:translateY(-5px);
      background:var(--card-hover);
      border-color:rgba(139,92,246,.28);
      box-shadow:0 24px 60px rgba(0,0,0,.34);
    }

    .feature-icon{
      width:54px;
      height:54px;
      border-radius:18px;
      display:grid;
      place-items:center;
      margin-bottom:18px;
      color:#fff;
      background:linear-gradient(135deg,rgba(139,92,246,.92),rgba(236,72,153,.86));
      box-shadow:0 14px 34px rgba(139,92,246,.25);
    }

    .feature-card h3,.scene-card h3,.process-card h3,.rank-card h3{
      font-size:20px;
      line-height:1.35;
      margin-bottom:10px;
    }

    .feature-card p,.scene-card p,.process-card p,.rank-card p{
      color:var(--muted);
      margin-bottom:0;
    }

    .content-band{
      border:1px solid var(--line);
      border-radius:34px;
      padding:26px;
      background:
        linear-gradient(135deg,rgba(139,92,246,.14),rgba(236,72,153,.08)),
        rgba(255,255,255,.035);
      box-shadow:var(--shadow-soft);
    }

    .split{
      display:grid;
      grid-template-columns:.92fr 1.08fr;
      gap:24px;
      align-items:stretch;
    }

    .note-panel{
      padding:28px;
      background:
        radial-gradient(circle at 0 0,rgba(34,211,238,.14),transparent 40%),
        rgba(17,24,39,.74);
    }

    .note-panel h2{margin-bottom:16px}
    .note-panel p{color:var(--muted);margin-bottom:18px}
    .notice-list{
      display:grid;
      gap:12px;
      margin:0;
      padding:0;
      list-style:none;
    }

    .notice-list li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      padding:12px 13px;
      border-radius:16px;
      background:rgba(255,255,255,.055);
      border:1px solid rgba(255,255,255,.08);
      color:#dce3f7;
    }

    .notice-list i{
      margin-top:5px;
      color:var(--success);
    }

    .scene-card{
      padding:22px;
      display:flex;
      gap:16px;
      align-items:flex-start;
    }

    .scene-no{
      width:38px;
      height:38px;
      border-radius:14px;
      display:grid;
      place-items:center;
      flex:0 0 auto;
      color:#fff;
      font-weight:900;
      background:rgba(139,92,246,.22);
      border:1px solid rgba(139,92,246,.36);
    }

    .process-wrap{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
      counter-reset:step;
    }

    .process-card{
      padding:22px;
      position:relative;
      overflow:hidden;
    }

    .process-card::before{
      counter-increment:step;
      content:"0" counter(step);
      display:inline-flex;
      width:44px;
      height:44px;
      align-items:center;
      justify-content:center;
      border-radius:15px;
      margin-bottom:18px;
      color:#fff;
      font-weight:900;
      background:linear-gradient(135deg,rgba(34,211,238,.75),rgba(139,92,246,.85));
    }

    .rank-card{
      padding:20px;
      display:flex;
      align-items:center;
      gap:16px;
    }

    .rank-badge{
      width:54px;
      height:54px;
      border-radius:18px;
      display:grid;
      place-items:center;
      flex:0 0 auto;
      color:#fff;
      font-size:20px;
      font-weight:950;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
    }

    .rank-card p{font-size:14px}

    .faq-list{
      display:grid;
      gap:14px;
    }

    .faq-item{
      padding:0;
      overflow:hidden;
    }

    .faq-question{
      width:100%;
      border:0;
      background:transparent;
      color:#fff;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding:20px 22px;
      cursor:pointer;
      text-align:left;
      font-weight:900;
    }

    .faq-question:hover{
      background:rgba(255,255,255,.045);
    }

    .faq-question:focus{
      outline:none;
      box-shadow:inset 0 0 0 2px rgba(139,92,246,.35);
    }

    .faq-question i{
      color:var(--accent);
      transition:var(--ease);
    }

    .faq-answer{
      display:none;
      padding:0 22px 20px;
      color:var(--muted);
    }

    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question i{transform:rotate(180deg)}

    .cta{
      padding:42px;
      border-radius:36px;
      background:
        radial-gradient(circle at 20% 0,rgba(34,211,238,.18),transparent 34%),
        linear-gradient(135deg,rgba(139,92,246,.34),rgba(236,72,153,.18)),
        rgba(17,24,39,.86);
      border:1px solid var(--line-strong);
      box-shadow:var(--shadow);
      display:grid;
      grid-template-columns:1fr auto;
      align-items:center;
      gap:24px;
    }

    .cta h2{margin-bottom:12px}
    .cta p{
      margin:0;
      color:#d7def2;
      max-width:760px;
    }

    footer{
      margin-left:var(--sidebar);
      border-top:1px solid var(--line);
      background:rgba(7,9,17,.78);
    }

    .footer-wrap{
      width:min(var(--container), calc(100% - 48px));
      margin:0 auto;
      padding:34px 0;
      display:grid;
      grid-template-columns:1.2fr 1fr;
      gap:20px;
      align-items:center;
    }

    .footer-brand strong{
      display:block;
      font-size:18px;
      margin-bottom:5px;
    }

    .footer-brand span,.copyright{
      color:var(--weak);
      font-size:13px;
    }

    .footer-links{
      display:flex;
      justify-content:flex-end;
      flex-wrap:wrap;
      gap:10px;
    }

    .footer-links a{
      padding:9px 12px;
      border-radius:999px;
      color:var(--muted);
      border:1px solid var(--line);
      background:rgba(255,255,255,.035);
      font-size:13px;
      font-weight:700;
    }

    .footer-links a:hover{
      color:#fff;
      background:rgba(255,255,255,.08);
      border-color:rgba(255,255,255,.2);
    }

    .copyright{
      grid-column:1 / -1;
      padding-top:16px;
      border-top:1px solid var(--line);
    }

    @media (max-width:1180px){
      :root{--sidebar:248px}
      .hero-grid{grid-template-columns:1fr;gap:34px}
      .showcase{max-width:760px}
      .process-wrap{grid-template-columns:repeat(2,1fr)}
      .grid-3{grid-template-columns:repeat(2,1fr)}
      .split{grid-template-columns:1fr}
    }

    @media (max-width:900px){
      .sidebar{
        transform:translateX(-104%);
        transition:var(--ease);
        width:300px;
      }

      body.nav-open .sidebar{
        transform:translateX(0);
      }

      body.nav-open::after{
        content:"";
        position:fixed;
        inset:0;
        background:rgba(0,0,0,.48);
        z-index:40;
      }

      .mobile-topbar{display:block}
      .main,footer{margin-left:0}
      .hero{padding-top:44px;min-height:auto}
      .section{padding:64px 0}
      .container,.footer-wrap{width:min(100% - 32px,var(--container))}
      .section-head{
        align-items:flex-start;
        flex-direction:column;
      }
      .cta{grid-template-columns:1fr}
      .footer-wrap{grid-template-columns:1fr}
      .footer-links{justify-content:flex-start}
    }

    @media (max-width:640px){
      h1{font-size:38px;letter-spacing:-.04em}
      .hero-lead{font-size:16px}
      .grid-3,.grid-2,.process-wrap{grid-template-columns:1fr}
      .media-wall{grid-template-columns:1fr}
      .media-card:nth-child(2){transform:none}
      .content-band,.cta{padding:20px;border-radius:26px}
      .feature-card,.note-panel{padding:20px}
      .hero-actions .btn{width:100%}
      .scene-card{flex-direction:column}
      .rank-card{align-items:flex-start}
      .brand-text strong{font-size:16px}
    }

    @media (max-width:420px){
      .mobile-topbar{padding:10px 12px}
      .container,.footer-wrap{width:min(100% - 24px,var(--container))}
      .sidebar{width:min(306px,88vw)}
      .hero{padding-top:32px}
      .section{padding:52px 0}
      .badge{font-size:12px}
    }