:root{
      --bg0:#fbfaf7;
      --bg1:#ffffff;
      --ink:#1f2937;
      --muted:#5b6472;
      --subtle:#7a8596;
      --line:rgba(17,24,39,.10);
      --line2:rgba(17,24,39,.14);
      --card:rgba(255,255,255,.84);
      --shadow:0 14px 30px rgba(16,24,40,.10);
      --shadow2:0 10px 24px rgba(16,24,40,.10);
      --radius:18px;
      --radius2:26px;
      --accent1:#6d28d9;
      --accent2:#2563eb;
      --accent3:#00a3a3;
      --accent4:#f97316;
      --accent5:#10b981;
      --accent6:#ec4899;
      --focus:rgba(37,99,235,.25);
      --btn:#111827;
      --btnText:#ffffff;
      --link:#1d4ed8;
      --good:#0ea5e9;
      --warn:#f59e0b;
      --ok:#10b981;
      --bad:#ef4444;
      --container:1120px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "PingFang SC","Hiragino Sans GB","Microsoft YaHei", "Noto Sans SC", "Apple Color Emoji","Segoe UI Emoji";
      color:var(--ink);
      background:
        radial-gradient(1200px 700px at 10% -10%, rgba(109,40,217,.14), transparent 55%),
        radial-gradient(900px 600px at 90% 0%, rgba(37,99,235,.14), transparent 50%),
        radial-gradient(800px 560px at 80% 90%, rgba(16,185,129,.10), transparent 45%),
        linear-gradient(180deg, var(--bg0), #ffffff 44%, #fbfaf7 100%);
      overflow-x:hidden;
    }
    a{color:inherit; text-decoration:none}
    img{max-width:100%; height:auto; display:block}
    .container{
      width:100%;
      max-width:var(--container);
      margin:0 auto;
      padding:0 18px;
    }
    .pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border:1px solid rgba(255,255,255,.28);
      background:rgba(255,255,255,.12);
      backdrop-filter: blur(10px);
      border-radius:999px;
      color:rgba(255,255,255,.92);
      font-weight:650;
      letter-spacing:.2px;
      box-shadow:0 8px 16px rgba(16,24,40,.10);
      user-select:none;
      white-space:nowrap;
    }
    .pill svg{opacity:.95}
    .brand-dot{
      width:10px;height:10px;border-radius:50%;
      background:conic-gradient(from 180deg, var(--accent1), var(--accent2), var(--accent3), var(--accent4), var(--accent6), var(--accent1));
      box-shadow:0 0 0 3px rgba(255,255,255,.18);
    }

    header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(251,250,247,.72);
      backdrop-filter: blur(12px);
      border-bottom:1px solid rgba(17,24,39,.08);
    }
    .nav-wrap{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding:12px 0;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width: 220px;
    }
    .logo{
      width:44px;
      height:44px;
      border-radius:14px;
      background: linear-gradient(135deg, rgba(109,40,217,.12), rgba(37,99,235,.10), rgba(16,185,129,.10));
      border:1px solid rgba(17,24,39,.10);
      display:flex;
      align-items:center;
      justify-content:center;
      overflow:hidden;
    }
    .logo img{
      width:100%;
      height:100%;
      object-fit:contain;
    }
    .brand-title{
      display:flex;
      flex-direction:column;
      line-height:1.1;
    }
    .brand-title strong{
      font-size:14px;
      letter-spacing:.2px;
    }
    .brand-title span{
      font-size:12px;
      color:var(--muted);
      margin-top:4px;
      white-space:nowrap;
    }
    nav .menu{
      display:flex;
      align-items:center;
      gap:8px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .navlink{
      font-size:13px;
      color:rgba(17,24,39,.86);
      padding:9px 10px;
      border-radius:12px;
      border:1px solid transparent;
      transition: background .2s ease, border-color .2s ease, transform .15s ease;
      white-space:nowrap;
    }
    .navlink:hover{
      background:rgba(255,255,255,.75);
      border-color:rgba(17,24,39,.10);
      transform: translateY(-1px);
    }
    .nav-actions{
      display:flex;
      align-items:center;
      gap:10px;
      margin-left:6px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      padding:11px 14px;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.12);
      background:#ffffff;
      color:rgba(17,24,39,.92);
      font-weight:700;
      font-size:13px;
      transition: transform .15s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
      user-select:none;
      white-space:nowrap;
    }
    .btn:hover{transform: translateY(-1px); box-shadow: 0 12px 26px rgba(16,24,40,.12); border-color:rgba(17,24,39,.18)}
    .btn:focus{outline:none; box-shadow: 0 0 0 4px var(--focus)}
    .btn-primary{
      background: linear-gradient(135deg, rgba(109,40,217,1), rgba(37,99,235,1), rgba(0,163,163,1));
      border-color: rgba(255,255,255,.18);
      color:#fff;
      box-shadow: 0 16px 36px rgba(37,99,235,.18);
    }
    .btn-primary:hover{
      box-shadow: 0 18px 46px rgba(37,99,235,.24);
      border-color: rgba(255,255,255,.25);
    }
    .btn-ghost{
      background: rgba(255,255,255,.78);
    }
    .icon{
      width:16px;height:16px; display:inline-block;
    }

    .hamburger{
      display:none;
      width:44px;height:44px;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.12);
      background:rgba(255,255,255,.75);
      align-items:center;
      justify-content:center;
      cursor:pointer;
      transition: transform .15s ease, box-shadow .2s ease;
    }
    .hamburger:hover{transform: translateY(-1px); box-shadow: 0 14px 28px rgba(16,24,40,.12)}
    .hamburger:focus{outline:none; box-shadow: 0 0 0 4px var(--focus)}
    .hamburger .bars{
      width:18px;height:12px; position:relative;
    }
    .hamburger .bars span{
      position:absolute; left:0; right:0;
      height:2px; border-radius:2px;
      background: rgba(17,24,39,.82);
      transition: transform .2s ease, top .2s ease, opacity .2s ease;
    }
    .hamburger .bars span:nth-child(1){top:0}
    .hamburger .bars span:nth-child(2){top:5px}
    .hamburger .bars span:nth-child(3){top:10px}

    .mobile-panel{
      display:none;
      border-top:1px solid rgba(17,24,39,.08);
      padding:12px 0 16px;
    }
    .mobile-links{
      display:flex; flex-wrap:wrap; gap:10px;
    }
    .mobile-actions{
      display:flex; gap:10px; margin-top:12px; flex-wrap:wrap;
    }

    main{padding: 18px 0 0}
    section{padding:56px 0}
    .section-title{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:16px;
      margin-bottom:22px;
    }
    .section-title h2{
      margin:0;
      font-size:26px;
      letter-spacing:.2px;
    }
    .section-title p{
      margin:0;
      max-width:520px;
      color:var(--muted);
      line-height:1.7;
      font-size:14px;
    }
    .subtle-note{
      color:var(--subtle);
      font-size:12px;
      line-height:1.6;
    }

    .hero{
      padding: 26px 0 30px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns: 1.2fr .8fr;
      gap:18px;
      align-items:stretch;
      margin-top:14px;
    }
    .hero-left{
      border-radius: var(--radius2);
      background:
        radial-gradient(1000px 520px at 10% 0%, rgba(236,72,153,.18), transparent 50%),
        radial-gradient(860px 520px at 100% 10%, rgba(37,99,235,.20), transparent 50%),
        radial-gradient(760px 520px at 40% 100%, rgba(16,185,129,.14), transparent 55%),
        linear-gradient(135deg, rgba(255,255,255,.90), rgba(255,255,255,.70));
      border:1px solid rgba(17,24,39,.10);
      box-shadow: var(--shadow);
      overflow:hidden;
      position:relative;
    }
    .hero-left:before{
      content:"";
      position:absolute; inset:-2px;
      background: conic-gradient(from 210deg, rgba(109,40,217,.35), rgba(37,99,235,.28), rgba(0,163,163,.25), rgba(249,115,22,.22), rgba(236,72,153,.28), rgba(109,40,217,.35));
      filter: blur(22px);
      opacity:.25;
      pointer-events:none;
    }
    .hero-content{
      position:relative;
      padding:28px 26px 22px;
      min-height: 340px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      gap:18px;
    }
    .hero-head{
      display:flex;
      flex-direction:column;
      gap:14px;
    }
    .hero h1{
      margin:0;
      font-size:36px;
      line-height:1.15;
      letter-spacing:-.4px;
    }
    .hero p{
      margin:0;
      color:var(--muted);
      font-size:14.5px;
      line-height:1.8;
      max-width: 640px;
    }
    .hero-cta{
      display:flex;
      align-items:center;
      gap:12px;
      flex-wrap:wrap;
      margin-top:8px;
    }
    .hero-meta{
      display:flex;
      gap:10px;
      flex-wrap:wrap;
      margin-top:12px;
    }
    .meta-chip{
      display:flex;
      align-items:center;
      gap:10px;
      padding:10px 12px;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.70);
    }
    .meta-chip b{font-size:13px}
    .meta-chip span{display:block; color:var(--muted); font-size:12px; margin-top:3px; line-height:1.2}
    .hero-right{
      border-radius: var(--radius2);
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.75);
      box-shadow: var(--shadow2);
      overflow:hidden;
      position:relative;
    }
    .hero-right:after{
      content:"";
      position:absolute;
      left:-80px; top:-80px;
      width:240px; height:240px;
      border-radius:50%;
      background: radial-gradient(circle at 30% 30%, rgba(37,99,235,.30), transparent 60%);
      opacity:.7;
      pointer-events:none;
    }
    .hero-right-inner{
      position:relative;
      padding:20px 18px 18px;
      display:flex;
      flex-direction:column;
      gap:14px;
      height:100%;
    }
    .data-grid{
      display:grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap:12px;
    }
    .data-card{
      border-radius:18px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.80);
      padding:14px 12px;
      transition: transform .18s ease, box-shadow .2s ease;
      will-change: transform;
    }
    .data-card:hover{transform: translateY(-2px); box-shadow: 0 18px 34px rgba(16,24,40,.12)}
    .data-card .k{
      font-size:22px;
      font-weight:900;
      letter-spacing:-.4px;
    }
    .data-card .t{
      margin-top:6px;
      font-size:12.5px;
      color:var(--muted);
      line-height:1.5;
      min-height: 34px;
    }
    .hero-mini{
      border-radius:18px;
      border:1px dashed rgba(17,24,39,.18);
      background: rgba(255,255,255,.65);
      padding:14px 12px;
      display:flex;
      flex-direction:column;
      gap:10px;
    }
    .hero-mini h3{
      margin:0;
      font-size:14.5px;
      letter-spacing:.1px;
    }
    .hero-mini ul{
      margin:0; padding:0;
      list-style:none;
      display:flex;
      flex-direction:column;
      gap:9px;
    }
    .hero-mini li{
      display:flex; align-items:flex-start; gap:10px;
      color:rgba(17,24,39,.86);
      font-size:13px;
      line-height:1.5;
    }
    .check{
      width:18px; height:18px; border-radius:6px;
      background: linear-gradient(135deg, rgba(16,185,129,.16), rgba(37,99,235,.14));
      border:1px solid rgba(16,185,129,.25);
      display:inline-flex;
      align-items:center; justify-content:center;
      flex:0 0 auto;
      margin-top:1px;
    }

    .grid-3{
      display:grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap:14px;
    }
    .card{
      border-radius: var(--radius);
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.78);
      box-shadow: 0 10px 24px rgba(16,24,40,.06);
      padding:18px 16px;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
      position:relative;
      overflow:hidden;
    }
    .card:hover{transform: translateY(-2px); box-shadow: 0 20px 44px rgba(16,24,40,.12); border-color: rgba(17,24,39,.16)}
    .card h3{
      margin:10px 0 8px;
      font-size:16px;
      letter-spacing:.1px;
    }
    .card p{
      margin:0;
      color:var(--muted);
      line-height:1.75;
      font-size:13.5px;
    }
    .card .tagrow{
      display:flex; flex-wrap:wrap; gap:8px;
      margin-top:12px;
    }
    .tag{
      font-size:12px;
      color: rgba(17,24,39,.86);
      border:1px solid rgba(17,24,39,.10);
      padding:7px 10px;
      border-radius:999px;
      background: rgba(255,255,255,.70);
      white-space:nowrap;
    }

    .steps{
      display:grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap:14px;
    }
    .step{
      padding:18px 16px;
      border-radius: var(--radius);
      border:1px solid rgba(17,24,39,.10);
      background:
        linear-gradient(180deg, rgba(255,255,255,.85), rgba(255,255,255,.72));
      position:relative;
      overflow:hidden;
    }
    .step:before{
      content:"";
      position:absolute;
      right:-40px; top:-40px;
      width:120px; height:120px;
      border-radius:50%;
      background: radial-gradient(circle at 30% 30%, rgba(109,40,217,.18), transparent 60%);
      opacity:.8;
      pointer-events:none;
    }
    .step .num{
      display:flex; align-items:center; gap:10px;
      font-weight:900;
      letter-spacing:-.4px;
    }
    .badge-num{
      width:34px; height:34px; border-radius:14px;
      background: linear-gradient(135deg, rgba(109,40,217,.16), rgba(37,99,235,.14), rgba(16,185,129,.12));
      border:1px solid rgba(37,99,235,.18);
      display:flex; align-items:center; justify-content:center;
      color: rgba(29,78,216,.95);
      font-size:14px;
    }
    .step h3{margin:12px 0 8px; font-size:15.5px}
    .step p{margin:0; color:var(--muted); line-height:1.75; font-size:13.5px}

    .compare-wrap{
      border-radius: var(--radius2);
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.78);
      box-shadow: var(--shadow2);
      overflow:hidden;
    }
    .compare-head{
      padding:18px 18px 0;
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:14px;
      flex-wrap:wrap;
    }
    .stars{
      display:flex; align-items:center; gap:10px;
      padding:12px 14px;
      border-radius:18px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.80);
    }
    .score{
      display:flex; flex-direction:column; gap:4px;
    }
    .score b{font-size:20px; letter-spacing:-.3px}
    .score span{font-size:12.5px; color:var(--muted)}
    .star-row svg{margin-right:4px}
    .compare-table{
      width:100%;
      border-collapse: collapse;
      margin-top:14px;
      overflow:auto;
    }
    .compare-table th, .compare-table td{
      padding:12px 14px;
      border-top:1px solid rgba(17,24,39,.10);
      text-align:left;
      vertical-align:top;
      font-size:13.5px;
      line-height:1.7;
    }
    .compare-table th{
      color: rgba(17,24,39,.88);
      font-weight:900;
      background: linear-gradient(180deg, rgba(255,255,255,.85), rgba(255,255,255,.72));
    }
    .compare-table .col-feature{
      width:28%;
    }
    .metric{
      display:flex; gap:10px; align-items:flex-start;
    }
    .dot{
      width:10px;height:10px;border-radius:50%;
      margin-top:7px;
      background: linear-gradient(135deg, rgba(109,40,217,1), rgba(37,99,235,1));
      box-shadow: 0 0 0 4px rgba(37,99,235,.12);
      flex:0 0 auto;
    }
    .good{color: rgba(9,116,189,.98)}
    .neutral{color: var(--muted)}
    .bad{color: rgba(239,68,68,.95)}
    .compare-foot{
      padding:16px 18px 18px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      flex-wrap:wrap;
      border-top:1px solid rgba(17,24,39,.10);
    }
    .compare-foot .hint{
      color:var(--muted);
      font-size:13.5px;
      line-height:1.7;
      max-width:560px;
    }

    .two-col{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:14px;
      align-items:start;
    }
    .list{
      margin:0; padding:0; list-style:none;
      display:flex; flex-direction:column; gap:10px;
    }
    .list li{
      display:flex; gap:10px; align-items:flex-start;
      border-radius:16px;
      padding:12px 12px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.74);
    }
    .list li .li-title{
      font-weight:850;
      font-size:13.5px;
      margin-bottom:4px;
    }
    .list li p{
      margin:0;
      color:var(--muted);
      font-size:13.25px;
      line-height:1.7;
    }

    .network{
      display:grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap:14px;
    }
    .network-card{
      padding:18px 16px;
      border-radius: var(--radius);
      border:1px solid rgba(17,24,39,.10);
      background:
        radial-gradient(520px 220px at 20% 0%, rgba(37,99,235,.12), transparent 55%),
        linear-gradient(180deg, rgba(255,255,255,.86), rgba(255,255,255,.70));
      box-shadow: 0 10px 24px rgba(16,24,40,.06);
    }
    .network-card h3{margin:10px 0 8px; font-size:15.5px}
    .network-card p{margin:0; color:var(--muted); line-height:1.75; font-size:13.5px}
    .mini-badges{
      display:flex; flex-wrap:wrap; gap:8px; margin-top:12px;
    }
    .mini-badges .b{
      font-size:12px; padding:7px 10px; border-radius:999px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.72);
      white-space:nowrap;
    }

    .timeline{
      border-radius: var(--radius2);
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.78);
      box-shadow: 0 10px 24px rgba(16,24,40,.06);
      padding:18px 16px;
    }
    .timeline-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:12px;
    }
    .t-item{
      display:flex; gap:12px; align-items:flex-start;
      padding:14px 12px;
      border-radius:18px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.76);
    }
    .t-marker{
      width:38px;height:38px;border-radius:16px;
      background: linear-gradient(135deg, rgba(109,40,217,.16), rgba(37,99,235,.14), rgba(16,185,129,.12));
      border:1px solid rgba(37,99,235,.18);
      display:flex; align-items:center; justify-content:center;
      color: rgba(29,78,216,.95);
      flex:0 0 auto;
      font-weight:950;
    }
    .t-item b{display:block; font-size:13.5px; margin-top:1px}
    .t-item span{display:block; color:var(--muted); font-size:13px; line-height:1.7; margin-top:5px}

    .tabs{
      display:flex;
      gap:10px;
      flex-wrap:wrap;
      margin-bottom:14px;
    }
    .tab{
      padding:10px 12px;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.74);
      cursor:pointer;
      font-weight:800;
      font-size:13px;
      color: rgba(17,24,39,.88);
      transition: transform .15s ease, box-shadow .2s ease, border-color .2s ease, background .2s ease;
      user-select:none;
    }
    .tab:hover{transform: translateY(-1px); box-shadow: 0 14px 28px rgba(16,24,40,.10)}
    .tab[aria-selected="true"]{
      border-color: rgba(37,99,235,.28);
      background: linear-gradient(135deg, rgba(37,99,235,.14), rgba(16,185,129,.10), rgba(109,40,217,.10));
    }
    .gallery-grid{
      display:grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap:14px;
    }
    .case-card{
      padding:16px 14px;
      border-radius: var(--radius);
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.78);
      box-shadow: 0 10px 24px rgba(16,24,40,.06);
      overflow:hidden;
    }
    .case-top{
      display:flex; align-items:flex-start; justify-content:space-between; gap:10px;
    }
    .case-badge{
      font-size:12px;
      padding:7px 10px;
      border-radius:999px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.74);
      color: rgba(17,24,39,.84);
      white-space:nowrap;
    }
    .case-card h3{margin:12px 0 8px; font-size:15.5px}
    .case-card p{margin:0; color:var(--muted); line-height:1.75; font-size:13.5px}
    .case-tags{display:flex; flex-wrap:wrap; gap:8px; margin-top:12px}
    .case-tags .t{
      font-size:12px; padding:7px 10px; border-radius:999px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.70);
      color: rgba(17,24,39,.84);
      white-space:nowrap;
    }

    .article-list{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:14px;
    }
    .article-card{
      padding:16px 14px;
      border-radius: var(--radius);
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.78);
      box-shadow: 0 10px 24px rgba(16,24,40,.06);
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .article-card:hover{transform: translateY(-2px); box-shadow: 0 20px 44px rgba(16,24,40,.12)}
    .article-top{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      margin-bottom:10px;
    }
    .article-card b{font-size:14.5px}
    .badge-date{
      font-size:12px; color:var(--muted);
      padding:6px 10px; border-radius:999px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.72);
      white-space:nowrap;
    }
    .article-card p{
      margin:0;
      color:var(--muted);
      line-height:1.7;
      font-size:13.5px;
    }
    .article-foot{
      margin-top:12px;
      display:flex; align-items:center; justify-content:space-between; gap:10px; flex-wrap:wrap;
      border-top:1px solid rgba(17,24,39,.08);
      padding-top:12px;
    }
    .small-link{
      font-weight:900;
      color: rgba(29,78,216,.98);
      font-size:13.25px;
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 10px;
      border-radius:12px;
      border:1px solid rgba(29,78,216,.22);
      background: rgba(29,78,216,.06);
      transition: transform .15s ease;
    }
    .small-link:hover{transform: translateY(-1px)}
    .read-more{
      color:var(--muted); font-size:12.5px;
      display:flex; align-items:center; gap:10px;
    }
    .read-more .bar{
      width:6px;height:6px;border-radius:50%;
      background: linear-gradient(135deg, rgba(109,40,217,1), rgba(37,99,235,1));
    }

    details.faq{
      border-radius:18px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.78);
      box-shadow: 0 10px 24px rgba(16,24,40,.06);
      padding:14px 14px;
      transition: border-color .2s ease, transform .15s ease;
    }
    details.faq[open]{
      border-color: rgba(37,99,235,.22);
      transform: translateY(-1px);
    }
    summary{
      list-style:none;
      cursor:pointer;
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:12px;
      padding:2px 0;
      user-select:none;
    }
    summary::-webkit-details-marker{display:none}
    .faq-q{
      font-weight:950;
      font-size:14.5px;
      line-height:1.5;
      letter-spacing:.1px;
      padding-right:8px;
    }
    .faq-ic{
      width:30px;height:30px;border-radius:14px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.78);
      display:flex; align-items:center; justify-content:center;
      flex:0 0 auto;
      transition: transform .2s ease, background .2s ease;
      margin-top:1px;
    }
    details[open] .faq-ic{transform: rotate(45deg); background: rgba(37,99,235,.08)}
    .faq-a{
      margin-top:10px;
      color:var(--muted);
      line-height:1.85;
      font-size:13.5px;
    }
    .faq-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:14px;
      align-items:start;
    }

    .testimonial-grid{
      display:grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap:14px;
    }
    .t-card{
      border-radius: var(--radius);
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.78);
      box-shadow: 0 10px 24px rgba(16,24,40,.06);
      padding:16px 14px;
      overflow:hidden;
      position:relative;
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .t-card:hover{transform: translateY(-2px); box-shadow: 0 20px 44px rgba(16,24,40,.12)}
    .t-card:before{
      content:"";
      position:absolute;
      right:-70px; top:-70px;
      width:180px; height:180px;
      border-radius:50%;
      background: radial-gradient(circle at 30% 30%, rgba(236,72,153,.14), transparent 60%);
      opacity:.8;
      pointer-events:none;
    }
    .t-card .top{
      display:flex; align-items:flex-start; justify-content:space-between; gap:10px;
      position:relative;
    }
    .avatar{
      width:44px;height:44px;border-radius:18px;
      border:1px solid rgba(17,24,39,.10);
      background:
        linear-gradient(135deg, rgba(109,40,217,.12), rgba(37,99,235,.10), rgba(16,185,129,.10));
      display:flex; align-items:center; justify-content:center;
      font-weight:1000;
      color: rgba(29,78,216,.98);
      letter-spacing:-.3px;
      flex:0 0 auto;
    }
    .t-role{
      color:var(--muted);
      font-size:12.5px;
      margin-top:4px;
      line-height:1.3;
    }
    .t-name{font-weight:950; font-size:14.5px; letter-spacing:.1px}
    .t-rating{
      display:flex; align-items:center; gap:4px;
      margin-top:2px;
    }
    .t-quote{
      margin:12px 0 0;
      color:var(--muted);
      line-height:1.85;
      font-size:13.5px;
      position:relative;
    }

    .form-wrap{
      border-radius: var(--radius2);
      border:1px solid rgba(17,24,39,.10);
      background:
        radial-gradient(900px 320px at 10% 0%, rgba(37,99,235,.14), transparent 60%),
        radial-gradient(700px 320px at 90% 40%, rgba(109,40,217,.12), transparent 55%),
        linear-gradient(180deg, rgba(255,255,255,.86), rgba(255,255,255,.72));
      box-shadow: var(--shadow2);
      padding:18px 16px;
    }
    form{margin:0}
    .form-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:12px;
      align-items:start;
    }
    .field{
      display:flex; flex-direction:column; gap:8px;
    }
    label{
      font-size:12.5px;
      font-weight:900;
      color: rgba(17,24,39,.88);
    }
    input, select, textarea{
      width:100%;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.14);
      background: rgba(255,255,255,.86);
      padding:11px 12px;
      color: rgba(17,24,39,.92);
      font-size:13.5px;
      outline:none;
      transition: box-shadow .2s ease, border-color .2s ease, transform .15s ease;
    }
    textarea{min-height:110px; resize:vertical}
    input:focus, select:focus, textarea:focus{
      box-shadow: 0 0 0 4px var(--focus);
      border-color: rgba(37,99,235,.30);
    }
    .form-foot{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      flex-wrap:wrap;
      margin-top:14px;
      border-top:1px solid rgba(17,24,39,.08);
      padding-top:14px;
    }
    .fineprint{
      color:var(--muted);
      font-size:12.5px;
      line-height:1.6;
      max-width:520px;
    }
    .toast{
      position: fixed;
      left: 50%;
      transform: translateX(-50%);
      bottom: 18px;
      background: rgba(17,24,39,.92);
      color:#fff;
      border-radius: 16px;
      padding: 12px 14px;
      box-shadow: 0 18px 44px rgba(0,0,0,.25);
      width: min(520px, calc(100vw - 28px));
      z-index: 999;
      opacity:0;
      pointer-events:none;
      transition: opacity .22s ease, transform .22s ease;
    }
    .toast.show{
      opacity:1;
      pointer-events:auto;
      transform: translateX(-50%) translateY(-2px);
    }
    .toast b{display:block; font-size:13.5px}
    .toast span{display:block; font-size:12.5px; opacity:.88; margin-top:4px; line-height:1.6}

    .tagcloud{
      display:flex; flex-wrap:wrap; gap:10px;
      margin-top:10px;
    }
    .cloud-item{
      border-radius:999px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.76);
      padding:9px 12px;
      font-size:12.8px;
      color: rgba(17,24,39,.86);
      transition: transform .15s ease, box-shadow .2s ease, border-color .2s ease;
      user-select:none;
    }
    .cloud-item:hover{transform: translateY(-1px); box-shadow: 0 14px 28px rgba(16,24,40,.10); border-color: rgba(37,99,235,.22)}
    .price-box{
      border-radius: var(--radius2);
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.78);
      box-shadow: 0 10px 24px rgba(16,24,40,.06);
      padding:18px 16px;
    }
    .price-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:14px;
      align-items:start;
    }
    .price-card{
      border-radius: var(--radius);
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.76);
      padding:16px 14px;
    }
    .price-card h3{margin:0; font-size:15.5px}
    .price-card p{margin:8px 0 0; color:var(--muted); line-height:1.75; font-size:13.5px}
    .token-row{
      display:flex; gap:12px; align-items:flex-start; margin-top:12px;
    }
    .token-k{
      width:40px;height:40px;border-radius:16px;
      border:1px solid rgba(37,99,235,.22);
      background: rgba(37,99,235,.08);
      display:flex; align-items:center; justify-content:center;
      font-weight:1000; color: rgba(29,78,216,.98);
      flex:0 0 auto;
    }
    .token-row b{display:block; font-size:13.5px}
    .token-row span{display:block; margin-top:5px; color:var(--muted); font-size:13px; line-height:1.7}

    .footer{
      padding:26px 0 34px;
      border-top:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.60);
    }
    .footer-grid{
      display:grid;
      grid-template-columns: 1.2fr .8fr;
      gap:14px;
      align-items:start;
    }
    .footer-card{
      border-radius: var(--radius2);
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.78);
      padding:18px 16px;
      box-shadow: 0 10px 24px rgba(16,24,40,.06);
    }
    .footer-card h3{margin:0; font-size:15.5px}
    .footer-card p{margin:10px 0 0; color:var(--muted); line-height:1.8; font-size:13.5px}
    .footer-links{
      display:flex; flex-wrap:wrap; gap:10px;
      margin-top:12px;
    }
    .footer-links a{
      font-size:12.8px;
      color: rgba(29,78,216,.98);
      border:1px solid rgba(29,78,216,.22);
      background: rgba(29,78,216,.06);
      padding:8px 10px;
      border-radius:999px;
      transition: transform .15s ease;
    }
    .footer-links a:hover{transform: translateY(-1px)}
    .copyright{
      margin-top:14px;
      color:var(--muted);
      font-size:12.5px;
      display:flex; align-items:center; justify-content:space-between;
      gap:12px;
      flex-wrap:wrap;
    }
    .footer-right{
      display:flex; flex-direction:column; gap:12px;
    }
    .wechat-card{
      display:flex; gap:12px; align-items:center;
    }
    .wechat-card img{
      width:84px; height:84px; border-radius:22px;
      border:1px solid rgba(17,24,39,.10);
      background:#fff;
      padding:6px;
    }
    .wechat-card b{font-size:14.5px; display:block}
    .wechat-card span{color:var(--muted); font-size:13px; line-height:1.6; display:block; margin-top:6px}

    .float-contact{
      position:fixed;
      right:14px;
      bottom:14px;
      z-index:80;
      display:flex;
      flex-direction:column;
      gap:10px;
      align-items:flex-end;
    }
    .float-btn{
      width:52px;height:52px;border-radius:18px;
      border:1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.78);
      box-shadow: 0 14px 30px rgba(16,24,40,.16);
      display:flex; align-items:center; justify-content:center;
      cursor:pointer;
      transition: transform .15s ease, box-shadow .2s ease;
      user-select:none;
    }
    .float-btn:hover{transform: translateY(-2px); box-shadow: 0 20px 44px rgba(16,24,40,.22)}
    .float-tooltip{
      position:absolute;
      right:62px;
      bottom: 6px;
      background: rgba(17,24,39,.92);
      color:#fff;
      padding:10px 12px;
      border-radius:16px;
      font-size:12.5px;
      width:max-content;
      max-width: 220px;
      box-shadow: 0 18px 44px rgba(0,0,0,.24);
      opacity:0;
      transform: translateY(6px);
      pointer-events:none;
      transition: opacity .2s ease, transform .2s ease;
    }
    .float-contact .float-btn:hover + .float-tooltip{
      opacity:1; transform: translateY(0);
    }

    .reveal{
      opacity:0;
      transform: translateY(10px);
      transition: opacity .5s ease, transform .55s ease;
    }
    .reveal.show{
      opacity:1;
      transform: translateY(0);
    }

    @media (max-width: 980px){
      .hero-grid{grid-template-columns:1fr; }
      .hero-content{min-height:auto}
      .grid-3{grid-template-columns: 1fr; }
      .steps{grid-template-columns: 1fr 1fr; }
      .two-col{grid-template-columns: 1fr; }
      .network{grid-template-columns: 1fr; }
      .timeline-grid{grid-template-columns: 1fr; }
      .gallery-grid{grid-template-columns: 1fr; }
      .article-list{grid-template-columns: 1fr; }
      .faq-grid{grid-template-columns: 1fr; }
      .testimonial-grid{grid-template-columns: 1fr; }
      .price-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
    }
    @media (max-width: 860px){
      nav .menu{display:none}
      .nav-actions{display:none}
      .hamburger{display:flex}
      .mobile-panel{display:block}
    }