:root{
      --bg0:#fbfaf7;
      --bg1:#ffffff;
      --text:#1c2430;
      --muted:#5b6675;
      --muted2:#7a8697;
      --line: rgba(30,41,59,.12);
      --shadow: 0 10px 30px rgba(16,24,40,.08);
      --shadow2: 0 8px 20px rgba(16,24,40,.10);
      --radius:16px;
      --radius2:22px;
      --brand1:#6d5efc;
      --brand2:#12c2e9;
      --brand3:#ff4ecd;
      --brand4:#ffd66b;
      --ok:#19b47a;
      --warn:#ff9f1c;
      --focus: rgba(18,194,233,.25);
      --btn:#0f172a;
      --btnText:#ffffff;
      --chipBg: rgba(109,94,252,.12);
      --chipText:#3f2fd8;
      --cardBg: rgba(255,255,255,.82);
      --cardBorder: rgba(15,23,42,.10);
    }

    *{ 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", "Liberation Sans", sans-serif;
      color:var(--text);
      background:
        radial-gradient(1200px 700px at 15% 5%, rgba(109,94,252,.15), transparent 55%),
        radial-gradient(900px 600px at 90% 10%, rgba(18,194,233,.14), transparent 55%),
        radial-gradient(900px 650px at 60% 90%, rgba(255,78,205,.12), transparent 60%),
        linear-gradient(180deg, var(--bg0) 0%, #f7f6f2 40%, #ffffff 100%);
      line-height:1.6;
    }

    .container{
      width: min(1120px, 100%);
      padding: 0 18px;
      margin: 0 auto;
    }

    .topbar{
      position: sticky;
      top: 0;
      z-index: 50;
      backdrop-filter: blur(10px);
      background: rgba(255,255,255,.72);
      border-bottom: 1px solid rgba(15,23,42,.08);
    }

    .nav-inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap: 14px;
      padding: 12px 0;
    }

    .brand{
      display:flex;
      align-items:center;
      gap: 12px;
      min-width: 220px;
    }
    .ai-page-logo{
      width: 40px;
      height: 40px;
      object-fit: contain;
      border-radius: 12px;
      background: rgba(109,94,252,.10);
      border: 1px solid rgba(109,94,252,.18);
      box-shadow: 0 6px 14px rgba(109,94,252,.12);
    }
    .brand-name{
      display:flex;
      flex-direction:column;
      gap: 2px;
      min-width: 0;
    }
    .brand-name strong{
      font-size: 14px;
      letter-spacing:.2px;
    }
    .brand-name span{
      font-size: 12px;
      color: var(--muted);
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }

    .nav-links{
      display:flex;
      align-items:center;
      justify-content:flex-end;
      gap: 14px;
      flex-wrap: wrap;
    }

    .nav-links a{
      color: var(--muted);
      text-decoration:none;
      font-size: 13px;
      padding: 8px 10px;
      border-radius: 12px;
      border: 1px solid transparent;
      transition: transform .15s ease, background .15s ease, border-color .15s ease, color .15s ease;
    }
    .nav-links a:hover{
      background: rgba(109,94,252,.10);
      border-color: rgba(109,94,252,.18);
      color: #2c2f60;
      transform: translateY(-1px);
    }

    .nav-cta{
      display:flex;
      align-items:center;
      gap: 10px;
      flex-wrap: wrap;
      justify-content:flex-end;
    }

    .btn{
      appearance:none;
      border: 1px solid transparent;
      background: transparent;
      color: var(--btn);
      padding: 10px 14px;
      border-radius: 14px;
      font-weight: 650;
      font-size: 13px;
      text-decoration:none;
      cursor:pointer;
      transition: transform .14s ease, box-shadow .14s ease, background .14s ease, border-color .14s ease;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap: 10px;
      white-space:nowrap;
    }
    .btn:focus{ outline:none; box-shadow: 0 0 0 4px var(--focus); }
    .btn:hover{ transform: translateY(-1px); }
    .btn.primary{
      background: linear-gradient(135deg, rgba(109,94,252,1) 0%, rgba(18,194,233,1) 55%, rgba(255,78,205,1) 100%);
      color: #fff;
      box-shadow: 0 12px 30px rgba(109,94,252,.22);
      border-color: rgba(255,255,255,.22);
    }
    .btn.primary:active{ transform: translateY(0px); }
    .btn.secondary{
      border-color: rgba(15,23,42,.12);
      background: rgba(255,255,255,.55);
    }

    .nav-mobile{
      display:none;
      align-items:center;
      gap: 10px;
    }
    .icon-btn{
      width: 42px;
      height: 42px;
      border-radius: 14px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.70);
      cursor:pointer;
      display:grid;
      place-items:center;
      transition: transform .14s ease, background .14s ease, border-color .14s ease;
    }
    .icon-btn:hover{ transform: translateY(-1px); border-color: rgba(109,94,252,.25); }
    .hamburger{
      width: 18px; height: 12px; position:relative;
    }
    .hamburger span{
      position:absolute; left:0; right:0; height:2px; background: rgba(15,23,42,.75); border-radius: 2px;
      transition: transform .18s ease, top .18s ease, opacity .18s ease;
    }
    .hamburger span:nth-child(1){ top:0; }
    .hamburger span:nth-child(2){ top:5px; }
    .hamburger span:nth-child(3){ top:10px; }
    .icon-btn[aria-expanded="true"] .hamburger span:nth-child(1){ top:5px; transform: rotate(45deg); }
    .icon-btn[aria-expanded="true"] .hamburger span:nth-child(2){ opacity:0; }
    .icon-btn[aria-expanded="true"] .hamburger span:nth-child(3){ top:5px; transform: rotate(-45deg); }

    .mobile-panel{
      display:none;
      padding: 0 0 14px 0;
    }
    .mobile-panel.open{ display:block; }
    .mobile-panel .mobile-links{
      display:flex;
      flex-direction:column;
      gap: 10px;
      padding: 12px 0 0;
    }
    .mobile-panel .mobile-links a{
      color: var(--text);
      text-decoration:none;
      padding: 12px 12px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.65);
      border-radius: 14px;
      font-weight: 600;
      transition: transform .14s ease, border-color .14s ease;
    }
    .mobile-panel .mobile-links a:hover{ transform: translateY(-1px); border-color: rgba(109,94,252,.22); }

    header.hero{
      padding: 28px 0 6px;
    }

    .hero-grid{
      display:grid;
      grid-template-columns: 1.18fr .82fr;
      gap: 18px;
      align-items: stretch;
    }

    .hero-card{
      background:
        radial-gradient(900px 400px at 20% 0%, rgba(109,94,252,.22), transparent 55%),
        radial-gradient(700px 320px at 75% 10%, rgba(18,194,233,.20), transparent 55%),
        radial-gradient(680px 360px at 40% 90%, rgba(255,78,205,.16), transparent 55%),
        rgba(255,255,255,.72);
      border: 1px solid rgba(15,23,42,.10);
      border-radius: var(--radius2);
      box-shadow: var(--shadow);
      padding: 22px;
      position:relative;
      overflow:hidden;
    }

    .hero-card:before{
      content:"";
      position:absolute;
      inset:-2px;
      background:
        linear-gradient(135deg, rgba(109,94,252,.20), rgba(18,194,233,.14), rgba(255,78,205,.16));
      opacity:.55;
      filter: blur(30px);
      transform: translateY(20px);
      pointer-events:none;
    }

    .hero-content{
      position:relative;
      z-index:1;
      display:flex;
      flex-direction:column;
      gap: 14px;
    }

    .kicker{
      display:flex;
      align-items:center;
      gap: 10px;
      flex-wrap:wrap;
    }

    .badge{
      display:inline-flex;
      align-items:center;
      gap: 8px;
      padding: 8px 12px;
      border-radius: 999px;
      border: 1px solid rgba(109,94,252,.20);
      background: rgba(109,94,252,.10);
      color:#2d2a6c;
      font-weight: 700;
      font-size: 12px;
      letter-spacing:.2px;
    }
    .badge i{
      width: 10px; height: 10px; border-radius: 50%;
      background: linear-gradient(135deg, var(--brand1), var(--brand2), var(--brand3));
      box-shadow: 0 8px 18px rgba(109,94,252,.25);
      display:inline-block;
    }

    .hero-title{
      margin:0;
      font-size: 34px;
      line-height:1.15;
      letter-spacing:-.6px;
    }
    .hero-sub{
      margin:0;
      color: var(--muted);
      font-size: 14.5px;
      max-width: 62ch;
    }

    .hero-actions{
      display:flex;
      align-items:center;
      gap: 12px;
      flex-wrap: wrap;
      padding-top: 4px;
    }

    .mini-trust{
      display:flex;
      align-items:center;
      gap: 14px;
      flex-wrap:wrap;
      padding-top: 6px;
      color: var(--muted);
      font-size: 12.5px;
    }
    .mini-trust .sep{ width: 6px; height: 6px; border-radius: 50%; background: rgba(15,23,42,.18); }
    .spark{
      width: 10px; height: 10px; border-radius: 3px;
      background: linear-gradient(135deg, var(--brand2), var(--brand4));
      box-shadow: 0 10px 22px rgba(18,194,233,.18);
    }

    .hero-side{
      display:flex;
      flex-direction:column;
      gap: 12px;
    }

    .glass{
      background: rgba(255,255,255,.70);
      border: 1px solid rgba(15,23,42,.10);
      border-radius: var(--radius2);
      box-shadow: 0 14px 34px rgba(16,24,40,.08);
      padding: 16px;
      position:relative;
      overflow:hidden;
    }
    .glass:after{
      content:"";
      position:absolute;
      right:-60px; top:-60px;
      width: 160px; height: 160px;
      border-radius: 40px;
      background: linear-gradient(135deg, rgba(255,78,205,.25), rgba(109,94,252,.18), rgba(18,194,233,.18));
      transform: rotate(18deg);
      filter: blur(2px);
      opacity:.75;
      pointer-events:none;
    }
    .glass > *{ position:relative; z-index:1; }

    .stats{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
    }
    .stat{
      background: rgba(255,255,255,.68);
      border: 1px solid rgba(15,23,42,.09);
      border-radius: 16px;
      padding: 12px 12px;
      transition: transform .14s ease, box-shadow .14s ease, border-color .14s ease;
      min-height: 86px;
    }
    .stat:hover{
      transform: translateY(-2px);
      border-color: rgba(109,94,252,.22);
      box-shadow: 0 14px 26px rgba(109,94,252,.10);
    }
    .stat b{
      display:block;
      font-size: 20px;
      letter-spacing:-.3px;
      margin-bottom: 6px;
    }
    .stat span{
      display:block;
      font-size: 12.5px;
      color: var(--muted);
    }

    .side-block{
      margin-top: 2px;
      display:flex;
      flex-direction:column;
      gap: 10px;
    }

    .side-block h3{
      margin:0;
      font-size: 14px;
      letter-spacing:.2px;
    }
    .pill-row{
      display:flex;
      flex-wrap:wrap;
      gap: 8px;
    }
    .pill{
      display:inline-flex;
      align-items:center;
      gap: 8px;
      padding: 8px 10px;
      border-radius: 999px;
      background: var(--chipBg);
      border: 1px solid rgba(109,94,252,.18);
      color: var(--chipText);
      font-weight: 700;
      font-size: 12px;
      transition: transform .14s ease;
      user-select:none;
    }
    .pill:hover{ transform: translateY(-1px); }

    .icon-dot{
      width: 8px; height: 8px; border-radius: 50%;
      background: linear-gradient(135deg, var(--brand1), var(--brand2));
      box-shadow: 0 10px 18px rgba(109,94,252,.15);
    }

    main{ padding: 10px 0 36px; }

    section{
      padding: 30px 0;
    }
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap: 14px;
      margin-bottom: 14px;
    }
    .section-head h2{
      margin:0;
      font-size: 22px;
      letter-spacing:-.3px;
    }
    .section-head p{
      margin:0;
      color: var(--muted);
      font-size: 13.5px;
      max-width: 62ch;
    }

    .grid-2{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
    }
    .grid-3{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 14px;
    }
    .grid-4{
      display:grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 12px;
    }

    .card{
      background: rgba(255,255,255,.74);
      border: 1px solid rgba(15,23,42,.10);
      border-radius: var(--radius);
      padding: 16px;
      box-shadow: 0 10px 26px rgba(16,24,40,.05);
      transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease;
      position:relative;
      overflow:hidden;
    }
    .card:hover{
      transform: translateY(-2px);
      border-color: rgba(109,94,252,.22);
      box-shadow: 0 18px 36px rgba(16,24,40,.08);
    }

    .card .card-title{
      margin:0 0 8px 0;
      font-size: 15px;
      letter-spacing:.1px;
      display:flex;
      align-items:center;
      gap: 10px;
    }
    .card .card-title .em{
      width: 36px; height: 36px; border-radius: 14px;
      border: 1px solid rgba(109,94,252,.22);
      background: linear-gradient(135deg, rgba(109,94,252,.16), rgba(18,194,233,.10));
      display:grid;
      place-items:center;
      color:#2d2a6c;
      box-shadow: 0 14px 24px rgba(109,94,252,.10);
      flex: 0 0 auto;
    }
    .card p{
      margin:0;
      color: var(--muted);
      font-size: 13.5px;
    }

    .list{
      display:flex;
      flex-direction:column;
      gap: 10px;
      margin-top: 10px;
      padding: 0;
      list-style:none;
    }
    .li{
      display:flex;
      gap: 10px;
      align-items:flex-start;
      padding: 10px 12px;
      border-radius: 14px;
      border: 1px solid rgba(15,23,42,.08);
      background: rgba(255,255,255,.60);
    }
    .li i{
      width: 18px; height: 18px;
      border-radius: 6px;
      background: linear-gradient(135deg, rgba(109,94,252,.18), rgba(255,78,205,.12));
      border: 1px solid rgba(109,94,252,.22);
      display:inline-block;
      margin-top: 2px;
      flex: 0 0 auto;
      position:relative;
    }
    .li i:after{
      content:"";
      position:absolute; inset: 5px;
      border-radius: 2px;
      background: linear-gradient(135deg, var(--brand2), var(--brand4));
    }
    .li b{
      font-size: 13.5px;
      display:block;
      margin-bottom: 2px;
    }
    .li span{
      color: var(--muted);
      font-size: 12.8px;
      display:block;
    }

    .step-wrap{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      align-items:start;
    }
    .steps{
      display:flex;
      flex-direction:column;
      gap: 10px;
    }
    .step{
      display:flex;
      gap: 12px;
      padding: 14px 14px;
      border-radius: var(--radius);
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.72);
      transition: transform .16s ease, border-color .16s ease, box-shadow .16s ease;
    }
    .step:hover{
      transform: translateY(-2px);
      border-color: rgba(18,194,233,.22);
      box-shadow: 0 18px 34px rgba(18,194,233,.09);
    }
    .step .num{
      width: 38px; height: 38px;
      border-radius: 16px;
      display:grid; place-items:center;
      font-weight: 900;
      color:#0b1b33;
      background: rgba(18,194,233,.12);
      border: 1px solid rgba(18,194,233,.20);
      flex:0 0 auto;
    }
    .step h3{
      margin:0;
      font-size: 15px;
      letter-spacing:.1px;
    }
    .step p{
      margin: 4px 0 0 0;
      color: var(--muted);
      font-size: 13.2px;
    }

    .comparison{
      border-radius: var(--radius2);
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.72);
      box-shadow: 0 14px 34px rgba(16,24,40,.06);
      overflow:hidden;
    }
    .comp-top{
      padding: 16px;
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap: 12px;
      border-bottom: 1px solid rgba(15,23,42,.08);
      background:
        radial-gradient(700px 260px at 0% 0%, rgba(109,94,252,.16), transparent 55%),
        radial-gradient(620px 250px at 95% 0%, rgba(18,194,233,.14), transparent 55%),
        rgba(255,255,255,.72);
    }
    .rating{
      display:flex;
      flex-direction:column;
      gap: 6px;
    }
    .stars{
      display:flex;
      align-items:center;
      gap: 6px;
    }
    .star{
      width: 18px; height: 18px;
      background: conic-gradient(from 180deg, #ffcc33, #ff8a00);
      clip-path: polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
      filter: drop-shadow(0 6px 10px rgba(255,166,0,.20));
    }
    .rating b{ font-size: 18px; letter-spacing:-.2px; }
    .rating span{ color: var(--muted); font-size: 12.8px; }

    .comp-note{
      color: var(--muted);
      font-size: 13px;
      max-width: 44ch;
      margin-top: 2px;
    }

    .table-wrap{
      overflow:auto;
    }
    table{
      width:100%;
      border-collapse: collapse;
      min-width: 720px;
      background:#fff0;
    }
    th, td{
      border-bottom: 1px solid rgba(15,23,42,.08);
      padding: 12px 14px;
      text-align:left;
      vertical-align:top;
      font-size: 13.2px;
    }
    th{
      color:#283141;
      font-weight: 850;
      background: rgba(15,23,42,.02);
      position:sticky;
      top:0;
      z-index:2;
    }
    td .tag{
      display:inline-flex;
      align-items:center;
      padding: 6px 10px;
      border-radius: 999px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.70);
      color: var(--muted);
      font-weight: 700;
      font-size: 12.2px;
      white-space:nowrap;
    }
    td .tag.good{
      border-color: rgba(25,180,122,.22);
      background: rgba(25,180,122,.10);
      color:#0b5b38;
    }
    td .tag.hot{
      border-color: rgba(255,159,28,.25);
      background: rgba(255,159,28,.12);
      color:#6a3a00;
    }

    .toggle-row{
      display:flex;
      gap: 10px;
      flex-wrap: wrap;
      align-items:center;
    }
    .seg{
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.60);
      border-radius: 14px;
      padding: 6px;
      display:flex;
      gap: 6px;
    }
    .seg button{
      border:0;
      background: transparent;
      padding: 10px 12px;
      border-radius: 12px;
      font-weight: 800;
      font-size: 13px;
      cursor:pointer;
      color: var(--muted);
      transition: background .15s ease, color .15s ease, transform .14s ease;
    }
    .seg button:hover{ transform: translateY(-1px); }
    .seg button.active{
      color:#fff;
      background: linear-gradient(135deg, rgba(109,94,252,1), rgba(18,194,233,1));
      box-shadow: 0 14px 28px rgba(109,94,252,.18);
    }

    .model-tags{
      display:flex;
      flex-wrap:wrap;
      gap: 10px;
      padding-top: 10px;
    }
    .model-tag{
      flex: 0 0 auto;
      padding: 10px 12px;
      border-radius: 999px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.65);
      font-weight: 750;
      font-size: 12.6px;
      color: #2c3442;
      transition: transform .14s ease, border-color .14s ease;
    }
    .model-tag:hover{ transform: translateY(-1px); border-color: rgba(109,94,252,.24); }

    .cases{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 14px;
    }
    .case{
      padding: 14px;
    }
    .case .meta{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap: 10px;
      margin-bottom: 10px;
    }
    .case .meta .type{
      font-weight: 850;
      font-size: 12.2px;
      padding: 6px 10px;
      border-radius: 999px;
      background: rgba(109,94,252,.12);
      border: 1px solid rgba(109,94,252,.18);
      color:#2d2a6c;
      white-space:nowrap;
    }
    .case .meta .time{
      color: var(--muted);
      font-size: 12.5px;
      white-space:nowrap;
    }
    .case h3{
      margin:0 0 6px 0;
      font-size: 15px;
      letter-spacing:.1px;
    }
    .case p{ margin:0; color: var(--muted); font-size: 13.2px; }
    .case .tags{
      display:flex;
      flex-wrap:wrap;
      gap: 8px;
      margin-top: 10px;
    }
    .case .tags span{
      font-size: 12px;
      color: var(--muted2);
      padding: 6px 10px;
      border-radius: 999px;
      border: 1px solid rgba(15,23,42,.08);
      background: rgba(255,255,255,.55);
    }

    .cards-2x{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      align-items:start;
    }

    .form{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      padding-top: 8px;
    }
    .field{
      display:flex;
      flex-direction:column;
      gap: 8px;
    }
    .field label{
      font-size: 12.8px;
      color: var(--muted);
      font-weight: 700;
    }
    .field input, .field select, .field textarea{
      width:100%;
      border-radius: 14px;
      border: 1px solid rgba(15,23,42,.12);
      background: rgba(255,255,255,.72);
      padding: 12px 12px;
      font-size: 14px;
      color: var(--text);
      outline:none;
      transition: box-shadow .15s ease, border-color .15s ease, background .15s ease;
    }
    .field textarea{ resize: vertical; min-height: 108px; max-height: 220px; }
    .field input:focus, .field select:focus, .field textarea:focus{
      border-color: rgba(18,194,233,.35);
      box-shadow: 0 0 0 4px rgba(18,194,233,.18);
      background: rgba(255,255,255,.90);
    }
    .field.full{ grid-column: 1 / -1; }

    .form-actions{
      grid-column: 1 / -1;
      display:flex;
      gap: 12px;
      align-items:center;
      flex-wrap: wrap;
      margin-top: 2px;
    }
    .hint{
      color: var(--muted);
      font-size: 12.6px;
      max-width: 48ch;
    }

    .faq{
      display:flex;
      flex-direction:column;
      gap: 10px;
    }
    details.faq-item{
      background: rgba(255,255,255,.72);
      border: 1px solid rgba(15,23,42,.10);
      border-radius: var(--radius);
      overflow:hidden;
      box-shadow: 0 10px 26px rgba(16,24,40,.05);
      transition: border-color .15s ease, transform .15s ease, box-shadow .15s ease;
    }
    details.faq-item[open]{
      border-color: rgba(109,94,252,.22);
      box-shadow: 0 18px 36px rgba(109,94,252,.08);
      transform: translateY(-2px);
    }
    summary{
      list-style:none;
      cursor:pointer;
      padding: 14px 16px;
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap: 12px;
      user-select:none;
    }
    summary::-webkit-details-marker{ display:none; }
    .q{
      font-weight: 850;
      font-size: 14px;
      margin-top: 1px;
    }
    .chev{
      width: 34px; height: 34px;
      border-radius: 14px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.70);
      display:grid; place-items:center;
      flex: 0 0 auto;
      transition: transform .18s ease, border-color .15s ease;
      margin-top: -2px;
    }
    details[open] .chev{ transform: rotate(180deg); border-color: rgba(18,194,233,.25); }
    .chev svg{ opacity:.82; }
    .a{
      padding: 0 16px 14px 16px;
      color: var(--muted);
      font-size: 13.6px;
    }

    .reviews{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 14px;
    }
    .review{
      padding: 16px;
      display:flex;
      flex-direction:column;
      gap: 10px;
    }
    .review-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap: 10px;
    }
    .avatar{
      width: 42px; height: 42px;
      border-radius: 16px;
      background: linear-gradient(135deg, rgba(109,94,252,.18), rgba(18,194,233,.14));
      border: 1px solid rgba(109,94,252,.22);
      display:grid;
      place-items:center;
      font-weight: 950;
      color:#2b2f60;
      box-shadow: 0 14px 28px rgba(109,94,252,.10);
      flex:0 0 auto;
    }
    .role{
      display:flex;
      flex-direction:column;
      gap: 2px;
      min-width:0;
    }
    .role b{
      font-size: 13.5px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .role span{
      font-size: 12.5px;
      color: var(--muted);
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .review p{
      margin:0;
      color: var(--muted);
      font-size: 13.4px;
    }

    .article-list{
      display:flex;
      flex-direction:column;
      gap: 10px;
    }
    .article{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap: 12px;
      padding: 14px 14px;
      border-radius: var(--radius);
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.70);
      transition: transform .16s ease, border-color .16s ease, box-shadow .16s ease;
    }
    .article:hover{
      transform: translateY(-2px);
      border-color: rgba(255,78,205,.22);
      box-shadow: 0 18px 36px rgba(255,78,205,.08);
    }
    .article .left{
      display:flex;
      flex-direction:column;
      gap: 6px;
      min-width:0;
    }
    .article .left b{
      font-size: 14.4px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .article .left span{
      color: var(--muted);
      font-size: 12.9px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .article a{
      text-decoration:none;
      color: #2c2f60;
      font-weight: 900;
      font-size: 12.8px;
      padding: 8px 10px;
      border-radius: 12px;
      border: 1px solid rgba(109,94,252,.20);
      background: rgba(109,94,252,.10);
      flex:0 0 auto;
      transition: transform .14s ease, background .14s ease;
    }
    .article a:hover{ transform: translateY(-1px); background: rgba(109,94,252,.14); }

    .label-cloud{
      display:flex;
      flex-wrap:wrap;
      gap: 10px;
    }
    .cloud-item{
      padding: 10px 12px;
      border-radius: 999px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.65);
      color: #2f3a4b;
      font-weight: 800;
      font-size: 12.7px;
      transition: transform .14s ease, border-color .14s ease;
      cursor: default;
      user-select:none;
    }
    .cloud-item:hover{ transform: translateY(-1px); border-color: rgba(18,194,233,.22); }

    .network{
      display:grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 14px;
      align-items:start;
    }
    .timeline{
      border-radius: var(--radius2);
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.72);
      padding: 16px;
      box-shadow: 0 12px 28px rgba(16,24,40,.06);
    }
    .time-row{
      display:flex;
      flex-direction:column;
      gap: 12px;
      margin-top: 10px;
    }
    .titem{
      display:flex;
      gap: 12px;
      align-items:flex-start;
    }
    .ticon{
      width: 40px; height: 40px;
      border-radius: 16px;
      border: 1px solid rgba(18,194,233,.22);
      background: rgba(18,194,233,.12);
      display:grid; place-items:center;
      flex:0 0 auto;
      color:#0b3f57;
    }
    .titem b{ display:block; font-size: 13.8px; }
    .titem span{ display:block; color: var(--muted); font-size: 13.1px; margin-top: 3px; }

    .tag-cloud{
      border-radius: var(--radius2);
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.72);
      padding: 16px;
      box-shadow: 0 12px 28px rgba(16,24,40,.06);
    }

    footer{
      padding: 22px 0 26px;
      background:
        radial-gradient(900px 360px at 20% 0%, rgba(109,94,252,.14), transparent 55%),
        radial-gradient(780px 340px at 90% 20%, rgba(18,194,233,.12), transparent 58%),
        rgba(255,255,255,.55);
      border-top: 1px solid rgba(15,23,42,.08);
    }
    .footer-grid{
      display:grid;
      grid-template-columns: 1.25fr .75fr;
      gap: 14px;
      align-items:start;
    }
    .foot-brand{
      display:flex;
      flex-direction:column;
      gap: 10px;
    }
    .foot-brand .row{
      display:flex;
      gap: 12px;
      align-items:center;
      flex-wrap:wrap;
    }
    .foot-brand p{
      margin:0;
      color: var(--muted);
      font-size: 13.2px;
      max-width: 60ch;
    }
    .foot-links{
      display:flex;
      flex-direction:column;
      gap: 10px;
    }
    .friend-links{
      display:flex;
      flex-wrap:wrap;
      gap: 10px;
    }
    .friend-links a{
      text-decoration:none;
      color: #2c2f60;
      font-weight: 900;
      font-size: 12.4px;
      padding: 8px 10px;
      border-radius: 999px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.65);
      transition: transform .14s ease, border-color .14s ease, background .14s ease;
    }
    .friend-links a:hover{
      transform: translateY(-1px);
      border-color: rgba(109,94,252,.22);
      background: rgba(109,94,252,.10);
    }
    .copyright{
      margin-top: 12px;
      color: var(--muted2);
      font-size: 12.4px;
    }

    .floating-help{
      position: fixed;
      right: 14px;
      bottom: 14px;
      z-index: 60;
      display:flex;
      flex-direction:column;
      gap: 10px;
      align-items:flex-end;
      pointer-events:none;
    }
    .help-bubble{
      pointer-events:auto;
      display:flex;
      align-items:center;
      gap: 10px;
      padding: 10px 12px;
      border-radius: 16px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.82);
      box-shadow: 0 18px 40px rgba(16,24,40,.12);
      transform: translateY(0);
      opacity: 0;
      animation: floatIn .6s ease forwards;
    }
    .help-bubble:nth-child(2){ animation-delay: .08s; }
    @keyframes floatIn{
      to{ opacity:1; }
    }
    .help-avatar{
      width: 36px; height: 36px;
      border-radius: 14px;
      background: linear-gradient(135deg, rgba(109,94,252,.18), rgba(18,194,233,.14));
      border: 1px solid rgba(109,94,252,.22);
      display:grid; place-items:center;
      font-weight: 950;
      color:#2b2f60;
    }
    .help-text{
      display:flex;
      flex-direction:column;
      gap: 2px;
      min-width: 140px;
    }
    .help-text b{ font-size: 12.8px; }
    .help-text span{ font-size: 12.2px; color: var(--muted); }
    .help-btn{
      pointer-events:auto;
      width: 48px;
      height: 48px;
      border-radius: 18px;
      border: 1px solid rgba(109,94,252,.22);
      background: linear-gradient(135deg, rgba(109,94,252,1), rgba(18,194,233,1));
      color:#fff;
      cursor:pointer;
      box-shadow: 0 20px 44px rgba(109,94,252,.26);
      display:grid;
      place-items:center;
      transition: transform .16s ease;
    }
    .help-btn:hover{ transform: translateY(-2px); }
    .help-pop{
      pointer-events:auto;
      width: min(320px, calc(100vw - 28px));
      border-radius: 20px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.90);
      box-shadow: 0 22px 60px rgba(16,24,40,.18);
      overflow:hidden;
      display:none;
    }
    .help-pop.open{ display:block; }
    .help-pop .pop-head{
      padding: 14px 14px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap: 10px;
      border-bottom: 1px solid rgba(15,23,42,.08);
      background:
        radial-gradient(540px 180px at 20% 0%, rgba(109,94,252,.16), transparent 55%),
        radial-gradient(460px 160px at 95% 10%, rgba(18,194,233,.12), transparent 55%),
        rgba(255,255,255,.9);
    }
    .help-pop .pop-head b{ font-size: 14px; }
    .close-x{
      width: 36px; height: 36px;
      border-radius: 14px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.70);
      cursor:pointer;
      display:grid;
      place-items:center;
    }
    .help-pop .pop-body{
      padding: 14px;
      display:flex;
      flex-direction:column;
      gap: 10px;
    }
    .qrcode-row{
      display:grid;
      grid-template-columns: 96px 1fr;
      gap: 12px;
      align-items:start;
    }
    .qrcode{
      width: 96px; height: 96px;
      border-radius: 18px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.70);
      overflow:hidden;
      display:grid;
      place-items:center;
    }
    .qrcode img{
      width:100%;
      height:100%;
      object-fit: cover;
    }
    .qrcode-row b{
      font-size: 13.5px;
    }
    .qrcode-row span{
      color: var(--muted);
      font-size: 12.8px;
      display:block;
      margin-top: 6px;
    }
    .pop-actions{
      display:flex;
      gap: 10px;
      flex-wrap:wrap;
    }
    .pop-actions a, .pop-actions button{
      font-weight: 900;
      font-size: 13px;
    }
    .link-inline{
      text-decoration:none;
      color:#2c2f60;
      font-weight: 950;
      font-size: 13px;
    }

    .fadein{
      opacity:0;
      transform: translateY(10px);
      transition: opacity .7s ease, transform .7s ease;
    }
    .fadein.in{
      opacity:1;
      transform: translateY(0);
    }

    .top-gap{ height: 10px; }

    .sr-only{
      position:absolute;
      width:1px; height:1px;
      padding:0; margin:-1px;
      overflow:hidden; clip:rect(0,0,0,0);
      white-space:nowrap; border:0;
    }

    @media (max-width: 980px){
      .hero-grid{ grid-template-columns: 1fr; }
      .hero-side{ flex-direction:row; }
      .side-block{ flex: 1; }
      .stats{ grid-template-columns: repeat(3, 1fr); }
      .grid-3{ grid-template-columns: repeat(2, 1fr); }
      .grid-4{ grid-template-columns: repeat(2, 1fr); }
      .cases{ grid-template-columns: 1fr; }
      .reviews{ grid-template-columns: 1fr; }
      .network{ grid-template-columns: 1fr; }
      .step-wrap{ grid-template-columns: 1fr; }
      .cards-2x{ grid-template-columns: 1fr; }
      .form{ grid-template-columns: 1fr; }
      table{ min-width: 640px; }
      .footer-grid{ grid-template-columns: 1fr; }
      .nav-links{ display:none; }
      .nav-cta{ display:none; }
      .nav-mobile{ display:flex; }
      .mobile-panel{ display:none; }
    }
    @media (max-width: 520px){
      .hero-title{ font-size: 28px; }
      .stats{ grid-template-columns: repeat(2, 1fr); }
      .hero-card{ padding: 18px; }
      section{ padding: 26px 0; }
      .section-head{ align-items:flex-start; flex-direction:column; }
      th, td{ padding: 10px 12px; }
      .help-text{ min-width: 120px; }
      .qrcode-row{ grid-template-columns: 86px 1fr; }
      .qrcode{ width: 86px; height: 86px; }
    }