:root{
      --bg0:#fbf7f4;
      --bg1:#ffffff;
      --text:#1f2328;
      --muted:#5a6472;
      --line:rgba(24,35,52,.12);
      --shadow: 0 18px 40px rgba(15,23,42,.08);
      --shadow2: 0 10px 28px rgba(15,23,42,.10);
      --brand:#ff3b5c;
      --brand2:#6d28d9;
      --brand3:#0ea5e9;
      --accent:#ffb020;
      --ok:#16a34a;
      --card:#ffffff;
      --pill:rgba(255,59,92,.08);
      --focus: 0 0 0 4px rgba(255,59,92,.22);
      --radius:18px;
      --radius2:26px;
      --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", sans-serif;
      color:var(--text);
      background:
        radial-gradient(1200px 620px at 12% 0%, rgba(255,59,92,.14), transparent 60%),
        radial-gradient(900px 520px at 86% 8%, rgba(109,40,217,.14), transparent 55%),
        radial-gradient(980px 560px at 50% 90%, rgba(14,165,233,.10), transparent 60%),
        linear-gradient(180deg, var(--bg0), #ffffff 42%, #fff 100%);
    }
    a{color:inherit; text-decoration:none}
    .container{
      width:100%;
      max-width: var(--container);
      margin:0 auto;
      padding: 0 18px;
    }
    .topbar{
      position:sticky; top:0; z-index:50;
      background: rgba(255,255,255,.74);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid rgba(24,35,52,.08);
    }
    .topbar-inner{
      display:flex; align-items:center; justify-content:space-between;
      padding: 12px 0;
      gap: 14px;
    }
    .brand{
      display:flex; align-items:center; gap:12px; min-width: 220px;
    }
    .ai-page-logo{
      width:44px; height:44px; object-fit:contain;
      border-radius:12px;
      background: linear-gradient(135deg, rgba(255,59,92,.18), rgba(109,40,217,.12));
      padding:6px;
      box-shadow: 0 10px 30px rgba(255,59,92,.14);
    }
    .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:3px}
    nav{
      display:flex; align-items:center; gap: 18px;
    }
    .nav-links{
      display:flex; align-items:center; gap: 14px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .nav-links a{
      font-size:13px; color: rgba(31,35,40,.88);
      padding: 8px 10px;
      border-radius: 999px;
      border: 1px solid transparent;
      transition: background .2s ease, border-color .2s ease, transform .2s ease;
      white-space:nowrap;
    }
    .nav-links a:hover{
      background: rgba(255,59,92,.08);
      border-color: rgba(255,59,92,.18);
      transform: translateY(-1px);
    }
    .nav-cta{
      display:flex; align-items:center; gap:10px;
      justify-content:flex-end;
      min-width: 240px;
    }
    .btn{
      display:inline-flex; align-items:center; justify-content:center;
      gap:10px;
      padding: 10px 14px;
      border-radius: 999px;
      border: 1px solid rgba(24,35,52,.12);
      background: rgba(255,255,255,.8);
      color: rgba(31,35,40,.95);
      font-weight: 650;
      font-size: 13px;
      box-shadow: 0 10px 24px rgba(15,23,42,.06);
      transition: transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease;
      cursor:pointer;
      user-select:none;
    }
    .btn:focus{outline:none; box-shadow: var(--focus), 0 10px 24px rgba(15,23,42,.08)}
    .btn:hover{
      transform: translateY(-1px);
      box-shadow: 0 16px 32px rgba(15,23,42,.10);
      border-color: rgba(255,59,92,.22);
    }
    .btn-primary{
      background: linear-gradient(135deg, var(--brand), var(--brand2));
      border-color: rgba(255,255,255,.18);
      color:#fff;
      box-shadow: 0 16px 40px rgba(255,59,92,.22);
    }
    .btn-primary:hover{box-shadow: 0 18px 46px rgba(255,59,92,.28)}
    .btn-ghost{
      background: rgba(109,40,217,.06);
      border-color: rgba(109,40,217,.16);
      color: rgba(52,25,123,.98);
      box-shadow:none;
    }
    .btn-icon{
      width:34px; height:34px; border-radius:10px;
      display:inline-flex; align-items:center; justify-content:center;
      border:1px solid rgba(24,35,52,.12);
      background: rgba(255,255,255,.85);
    }
    .hamburger{
      display:none;
      width:44px; height:44px; border-radius:14px;
      border:1px solid rgba(24,35,52,.12);
      background: rgba(255,255,255,.9);
      cursor:pointer;
    }
    .hamburger:focus{outline:none; box-shadow: var(--focus)}
    .hamburger .bar{
      width:18px; height:2px; background: rgba(31,35,40,.84);
      display:block; margin: 0 auto;
      border-radius:2px;
    }
    .hamburger .bar + .bar{margin-top:5px}
    .mobile-panel{
      display:none;
      padding: 10px 0 16px;
    }
    .mobile-panel.open{display:block}
    .mobile-links{
      display:flex; flex-direction:column; gap:10px;
      padding-bottom: 6px;
    }
    .mobile-links a{
      padding: 12px 12px;
      border-radius: 14px;
      border: 1px solid rgba(24,35,52,.10);
      background: rgba(255,255,255,.8);
      font-weight: 650;
      font-size: 14px;
    }
    .mobile-actions{
      display:flex; gap:12px; flex-wrap:wrap; margin-top: 10px;
    }

    .hero{
      padding: 34px 0 10px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns: 1.25fr .75fr;
      gap: 18px;
      align-items:stretch;
    }
    .hero-card{
      position:relative;
      background: linear-gradient(180deg, rgba(255,255,255,.72), rgba(255,255,255,.92));
      border: 1px solid rgba(24,35,52,.10);
      border-radius: var(--radius2);
      padding: 22px;
      overflow:hidden;
      box-shadow: var(--shadow);
    }
    .hero-card::before{
      content:"";
      position:absolute; inset:-2px;
      background:
        radial-gradient(520px 240px at 18% 10%, rgba(255,59,92,.22), transparent 60%),
        radial-gradient(520px 240px at 76% 18%, rgba(109,40,217,.20), transparent 60%),
        radial-gradient(620px 260px at 50% 105%, rgba(14,165,233,.14), transparent 60%);
      pointer-events:none;
      filter:saturate(1.05);
    }
    .hero-card > *{position:relative}
    .hero-kicker{
      display:flex; align-items:center; gap:10px; flex-wrap:wrap;
      margin-bottom: 10px;
    }
    .badge{
      display:inline-flex; align-items:center; gap:8px;
      padding: 8px 10px;
      border-radius: 999px;
      border: 1px solid rgba(255,59,92,.22);
      background: var(--pill);
      color: rgba(186, 23, 58, .98);
      font-weight: 800;
      font-size: 12px;
      letter-spacing:.2px;
    }
    .badge .dot{
      width:9px; height:9px; border-radius:999px;
      background: linear-gradient(135deg, var(--brand), var(--brand2));
      box-shadow: 0 10px 18px rgba(255,59,92,.28);
    }
    .hero h1{
      margin: 6px 0 10px;
      font-size: clamp(22px, 3.2vw, 36px);
      line-height: 1.15;
      letter-spacing: -0.6px;
    }
    .hero p{
      margin: 0;
      color: var(--muted);
      line-height: 1.7;
      font-size: 14.5px;
      max-width: 62ch;
    }
    .hero-actions{
      display:flex; gap:12px; flex-wrap:wrap;
      margin-top: 16px;
      align-items:center;
    }
    .hero-actions .helper{
      display:flex; gap:10px; align-items:center;
      color: rgba(31,35,40,.9);
      font-weight: 650;
      font-size: 13px;
      padding: 8px 12px;
      border-radius: 999px;
      border: 1px solid rgba(24,35,52,.10);
      background: rgba(255,255,255,.72);
    }
    .spark{
      width:10px; height:10px; border-radius:3px;
      background: linear-gradient(135deg, var(--accent), var(--brand));
      transform: rotate(18deg);
      box-shadow: 0 12px 20px rgba(255,176,32,.26);
    }

    .hero-side{
      background: rgba(255,255,255,.86);
      border: 1px solid rgba(24,35,52,.10);
      border-radius: var(--radius2);
      padding: 16px;
      box-shadow: 0 14px 34px rgba(15,23,42,.08);
      overflow:hidden;
      position:relative;
    }
    .hero-side::after{
      content:"";
      position:absolute;
      width: 260px; height: 260px;
      right: -140px; top: -140px;
      background: radial-gradient(circle at center, rgba(255,59,92,.26), transparent 62%);
      transform: rotate(12deg);
      pointer-events:none;
    }
    .hero-side > *{position:relative}
    .side-title{
      display:flex; align-items:center; justify-content:space-between; gap:12px;
      margin-bottom: 10px;
    }
    .side-title strong{font-size:14px}
    .side-title .pill{
      font-size:12px;
      color: rgba(109,40,217,.98);
      background: rgba(109,40,217,.08);
      border:1px solid rgba(109,40,217,.18);
      padding: 6px 10px;
      border-radius: 999px;
      font-weight: 800;
      white-space:nowrap;
    }
    .metrics{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-top: 10px;
    }
    .metric{
      padding: 12px 12px;
      border-radius: 16px;
      border: 1px solid rgba(24,35,52,.10);
      background: linear-gradient(180deg, rgba(255,255,255,.9), rgba(255,255,255,.75));
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .metric:hover{
      transform: translateY(-2px);
      box-shadow: 0 16px 40px rgba(15,23,42,.12);
      border-color: rgba(255,59,92,.22);
    }
    .metric .num{
      font-weight: 900; font-size: 18px; letter-spacing:-0.3px;
    }
    .metric .label{
      margin-top: 6px;
      color: var(--muted);
      font-size: 12.8px;
      line-height:1.4;
    }
    .quick-list{
      margin-top: 12px;
      display:flex; flex-direction:column; gap:10px;
    }
    .qitem{
      display:flex; gap:10px; align-items:flex-start;
      padding: 10px 12px;
      border-radius: 16px;
      border: 1px dashed rgba(24,35,52,.14);
      background: rgba(255,255,255,.6);
    }
    .qicon{
      width:34px; height:34px; border-radius: 12px;
      display:flex; align-items:center; justify-content:center;
      background: rgba(255,59,92,.10);
      border:1px solid rgba(255,59,92,.18);
      flex:0 0 auto;
      margin-top: 2px;
    }
    .qitem strong{font-size:13px}
    .qitem span{
      display:block;
      color: var(--muted);
      font-size: 12.6px;
      line-height:1.45;
      margin-top: 2px;
    }

    .section{
      padding: 28px 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: 20px;
      letter-spacing: -0.3px;
    }
    .section-head p{
      margin:0;
      color: var(--muted);
      line-height: 1.7;
      font-size: 13.8px;
      max-width: 62ch;
    }
    .tagrow{
      display:flex; flex-wrap:wrap; gap:8px;
      margin-top: 10px;
    }
    .tag{
      padding: 8px 10px;
      border-radius: 999px;
      border: 1px solid rgba(24,35,52,.10);
      background: rgba(255,255,255,.75);
      font-size: 12.4px;
      color: rgba(31,35,40,.86);
      font-weight: 650;
    }
    .tag.hot{
      border-color: rgba(255,59,92,.18);
      background: rgba(255,59,92,.08);
      color: rgba(186, 23, 58, .98);
    }
    .grid-3{
      display:grid; grid-template-columns: repeat(3, 1fr);
      gap: 14px;
    }
    .card{
      background: rgba(255,255,255,.88);
      border: 1px solid rgba(24,35,52,.10);
      border-radius: var(--radius);
      padding: 16px;
      box-shadow: 0 12px 30px rgba(15,23,42,.06);
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
      position:relative;
      overflow:hidden;
    }
    .card:hover{
      transform: translateY(-2px);
      box-shadow: 0 18px 46px rgba(15,23,42,.12);
      border-color: rgba(255,59,92,.20);
    }
    .card .card-top{
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
      margin-bottom: 10px;
    }
    .icon{
      width:44px; height:44px; border-radius: 16px;
      border: 1px solid rgba(24,35,52,.10);
      background: linear-gradient(180deg, rgba(255,255,255,.95), rgba(255,255,255,.72));
      display:flex; align-items:center; justify-content:center;
      flex:0 0 auto;
    }
    .icon svg{width:22px; height:22px}
    .card h3{
      margin: 0;
      font-size: 15px;
      letter-spacing: -.15px;
    }
    .card p{
      margin: 8px 0 0;
      color: var(--muted);
      line-height: 1.7;
      font-size: 13.6px;
    }
    .bullet{
      margin: 10px 0 0; padding:0; list-style:none;
      display:flex; flex-direction:column; gap:8px;
    }
    .bullet li{
      display:flex; gap:10px; align-items:flex-start;
      color: rgba(31,35,40,.88);
      font-size: 13px;
      line-height:1.5;
    }
    .tick{
      width:18px; height:18px; border-radius: 6px;
      background: rgba(22,163,74,.10);
      border: 1px solid rgba(22,163,74,.22);
      display:flex; align-items:center; justify-content:center;
      flex:0 0 auto;
      margin-top: 2px;
    }
    .tick svg{width:12px; height:12px}
    .three-step{
      display:grid; grid-template-columns: repeat(4, 1fr);
      gap: 12px;
    }
    .step{
      padding: 16px;
      border-radius: var(--radius);
      border: 1px solid rgba(24,35,52,.10);
      background: rgba(255,255,255,.86);
      position:relative;
      overflow:hidden;
    }
    .step::before{
      content:"";
      position:absolute; inset:-2px;
      background:
        radial-gradient(280px 120px at 18% 0%, rgba(255,59,92,.14), transparent 60%),
        radial-gradient(240px 120px at 90% 30%, rgba(109,40,217,.12), transparent 60%);
      pointer-events:none;
      opacity:.9;
    }
    .step > *{position:relative}
    .step .n{
      display:flex; align-items:center; justify-content:flex-start; gap:10px;
      font-weight: 950; letter-spacing: -.6px;
      font-size: 24px;
      margin-bottom: 6px;
      color: rgba(31,35,40,.94);
    }
    .step .n span{
      width:28px; height:28px; border-radius: 12px;
      background: rgba(255,59,92,.10);
      border:1px solid rgba(255,59,92,.18);
      display:flex; align-items:center; justify-content:center;
      font-size: 14px;
      color: rgba(186, 23, 58, .98);
      flex:0 0 auto;
      margin-top: 2px;
    }
    .step h3{margin:0; font-size: 14.8px}
    .step p{margin:8px 0 0; color: var(--muted); font-size: 13.4px; line-height:1.7}

    .panel-split{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      align-items:start;
    }
    .panel{
      background: rgba(255,255,255,.88);
      border: 1px solid rgba(24,35,52,.10);
      border-radius: var(--radius2);
      padding: 16px;
      box-shadow: 0 12px 30px rgba(15,23,42,.06);
      overflow:hidden;
      position:relative;
    }
    .panel::after{
      content:"";
      position:absolute;
      width: 260px; height: 260px;
      left: -160px; bottom: -170px;
      background: radial-gradient(circle at center, rgba(14,165,233,.18), transparent 62%);
      pointer-events:none;
    }
    .panel > *{position:relative}
    .panel h3{margin:0 0 10px; font-size: 15.5px}
    .panel .muted{color: var(--muted); margin:0; line-height:1.7; font-size: 13.6px}
    .list2{
      margin-top: 12px;
      display:grid; grid-template-columns: 1fr 1fr;
      gap: 10px;
    }
    .mini{
      padding: 12px 12px;
      border-radius: 16px;
      border: 1px solid rgba(24,35,52,.10);
      background: rgba(255,255,255,.75);
    }
    .mini strong{font-size:13.5px}
    .mini span{display:block; margin-top:6px; color: var(--muted); font-size: 12.8px; line-height:1.45}

    .compare{
      display:grid; grid-template-columns: 1.15fr .85fr;
      gap: 14px;
      align-items:start;
    }
    .stars{
      display:flex; align-items:center; gap:10px;
      margin-top: 4px;
      flex-wrap:wrap;
    }
    .star-badge{
      display:flex; align-items:center; gap:8px;
      background: rgba(255,176,32,.12);
      border: 1px solid rgba(255,176,32,.25);
      padding: 10px 12px;
      border-radius: 16px;
      font-weight: 900;
    }
    .star-row svg{width:18px; height:18px}
    .score{
      font-weight: 950;
      color: rgba(31,35,40,.98);
      font-size: 22px;
      letter-spacing: -.6px;
    }
    .score small{
      font-weight: 800;
      color: var(--muted);
      font-size: 12px;
      margin-left: 6px;
      letter-spacing: 0;
    }

    .table-wrap{
      overflow:auto;
      border-radius: var(--radius2);
      border: 1px solid rgba(24,35,52,.10);
      background: rgba(255,255,255,.86);
      box-shadow: 0 12px 30px rgba(15,23,42,.06);
    }
    table{
      width:100%;
      border-collapse: collapse;
      min-width: 720px;
    }
    th, td{
      padding: 14px 12px;
      border-bottom: 1px solid rgba(24,35,52,.08);
      vertical-align:top;
      text-align:left;
      font-size: 13.6px;
      line-height:1.6;
    }
    th{
      background: linear-gradient(180deg, rgba(255,255,255,.95), rgba(255,255,255,.82));
      color: rgba(31,35,40,.95);
      font-weight: 900;
      white-space:nowrap;
    }
    td{color: rgba(31,35,40,.88)}
    tr:last-child td{border-bottom:none}
    .mark{
      display:inline-flex; align-items:center; gap:8px;
      padding: 8px 10px;
      border-radius: 999px;
      background: rgba(22,163,74,.10);
      border: 1px solid rgba(22,163,74,.18);
      font-weight: 900;
      color: rgba(22,163,74,.98);
      white-space:nowrap;
    }
    .mark.no{
      background: rgba(255,59,92,.08);
      border-color: rgba(255,59,92,.18);
      color: rgba(186, 23, 58, .98);
    }
    .compare-note{
      color: var(--muted);
      font-size: 13.4px;
      line-height:1.7;
      margin-top: 10px;
    }

    .timeline{
      display:grid; grid-template-columns: 1fr 1fr; gap: 12px;
    }
    .titem{
      display:flex; gap: 12px; align-items:flex-start;
      padding: 14px 14px;
      border-radius: var(--radius);
      border: 1px solid rgba(24,35,52,.10);
      background: rgba(255,255,255,.84);
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .titem:hover{transform: translateY(-2px); box-shadow: 0 18px 46px rgba(15,23,42,.10); border-color: rgba(109,40,217,.20)}
    .ticon{
      width:42px; height:42px; border-radius: 16px;
      background: rgba(109,40,217,.10);
      border: 1px solid rgba(109,40,217,.18);
      display:flex; align-items:center; justify-content:center;
      flex:0 0 auto;
    }
    .ticon svg{width:20px; height:20px}
    .titem strong{display:block; font-size: 14px}
    .titem span{display:block; color: var(--muted); font-size: 13.2px; line-height:1.6; margin-top:6px}

    .tabs{
      display:flex; gap:10px; flex-wrap:wrap;
      margin-top: 8px;
    }
    .tab{
      padding: 10px 12px;
      border-radius: 999px;
      border: 1px solid rgba(24,35,52,.12);
      background: rgba(255,255,255,.75);
      font-weight: 850;
      font-size: 13px;
      cursor:pointer;
      transition: background .18s ease, transform .18s ease, border-color .18s ease;
      user-select:none;
    }
    .tab:hover{transform: translateY(-1px); border-color: rgba(255,59,92,.22)}
    .tab.active{
      background: rgba(255,59,92,.10);
      border-color: rgba(255,59,92,.22);
      color: rgba(186, 23, 58, .98);
    }
    .case-grid{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 14px;
    }
    .case-card{
      padding: 16px;
      border-radius: var(--radius2);
      border: 1px solid rgba(24,35,52,.10);
      background: rgba(255,255,255,.86);
      box-shadow: 0 12px 30px rgba(15,23,42,.06);
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
      overflow:hidden;
      position:relative;
    }
    .case-card:hover{transform: translateY(-2px); box-shadow: 0 18px 46px rgba(15,23,42,.12); border-color: rgba(255,59,92,.20)}
    .case-top{
      display:flex; align-items:flex-start; justify-content:space-between; gap:10px;
      margin-bottom: 10px;
    }
    .case-pill{
      font-size: 12px;
      padding: 7px 10px;
      border-radius: 999px;
      font-weight: 900;
      background: rgba(14,165,233,.10);
      border: 1px solid rgba(14,165,233,.20);
      color: rgba(3,105,161,.98);
      white-space:nowrap;
    }
    .case-title{margin:0; font-size: 15.5px; letter-spacing:-.2px}
    .case-desc{margin:8px 0 0; color: var(--muted); font-size: 13.6px; line-height:1.7}
    .case-meta{
      margin-top: 12px;
      display:flex; gap:8px; flex-wrap:wrap;
    }
    .chip{
      font-size: 12.2px;
      padding: 7px 10px;
      border-radius: 999px;
      border: 1px solid rgba(24,35,52,.10);
      background: rgba(255,255,255,.75);
      color: rgba(31,35,40,.86);
      font-weight: 700;
    }

    .articles{
      display:grid; grid-template-columns: 1.15fr .85fr;
      gap: 14px;
      align-items:start;
    }
    .article-list{
      display:flex; flex-direction:column; gap:10px;
    }
    .article{
      display:flex; gap:12px; align-items:flex-start;
      padding: 14px 14px;
      border-radius: var(--radius);
      border: 1px solid rgba(24,35,52,.10);
      background: rgba(255,255,255,.86);
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .article:hover{transform: translateY(-2px); box-shadow: 0 18px 46px rgba(15,23,42,.10); border-color: rgba(109,40,217,.20)}
    .a-badge{
      width:46px; height:46px; border-radius: 18px;
      background: rgba(255,176,32,.12);
      border:1px solid rgba(255,176,32,.22);
      display:flex; align-items:center; justify-content:center;
      flex:0 0 auto;
    }
    .a-badge svg{width:20px; height:20px}
    .article strong{display:block; font-size: 14.6px; letter-spacing:-.15px}
    .article span{
      display:block;
      margin-top: 6px;
      color: var(--muted);
      font-size: 13.2px;
      line-height:1.6;
    }
    .aside-card{
      padding: 16px;
      border-radius: var(--radius2);
      border: 1px solid rgba(24,35,52,.10);
      background: rgba(255,255,255,.86);
      box-shadow: 0 12px 30px rgba(15,23,42,.06);
      position:relative;
      overflow:hidden;
    }
    .aside-card::before{
      content:"";
      position:absolute; inset:-2px;
      background:
        radial-gradient(420px 220px at 40% 0%, rgba(255,59,92,.18), transparent 60%),
        radial-gradient(360px 220px at 110% 45%, rgba(14,165,233,.12), transparent 60%);
      pointer-events:none;
    }
    .aside-card > *{position:relative}
    .aside-card h3{margin:0; font-size: 15.8px}
    .aside-card p{margin:10px 0 0; color: var(--muted); font-size: 13.6px; line-height:1.7}
    .price-grid{
      margin-top: 12px;
      display:grid; grid-template-columns: 1fr 1fr;
      gap: 10px;
    }
    .price-item{
      padding: 12px;
      border-radius: 16px;
      border: 1px solid rgba(24,35,52,.10);
      background: rgba(255,255,255,.75);
    }
    .price-item strong{font-size: 13.8px}
    .price-item span{display:block; margin-top:6px; color: var(--muted); font-size: 12.8px; line-height:1.45}

    .faq-wrap{
      display:grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 14px;
      align-items:start;
    }
    .faq{
      background: rgba(255,255,255,.86);
      border: 1px solid rgba(24,35,52,.10);
      border-radius: var(--radius2);
      box-shadow: 0 12px 30px rgba(15,23,42,.06);
      overflow:hidden;
    }
    details.faq-item{
      border-bottom: 1px solid rgba(24,35,52,.08);
      padding: 0 0;
    }
    details.faq-item:last-child{border-bottom:none}
    summary{
      cursor:pointer;
      list-style:none;
      padding: 16px 16px;
      display:flex; align-items:center; justify-content:space-between; gap:12px;
      font-weight: 900;
      font-size: 14.2px;
    }
    summary::-webkit-details-marker{display:none}
    .sum-right{
      display:flex; align-items:center; gap:10px; flex:0 0 auto;
      color: var(--muted);
      font-weight: 800;
    }
    .chev{
      width:34px; height:34px; border-radius: 14px;
      border: 1px solid rgba(24,35,52,.12);
      background: rgba(255,255,255,.8);
      display:flex; align-items:center; justify-content:center;
      transition: transform .18s ease, border-color .18s ease, background .18s ease;
    }
    details[open] .chev{transform: rotate(180deg); border-color: rgba(255,59,92,.22); background: rgba(255,59,92,.08)}
    .faq-answer{
      padding: 0 16px 16px;
      color: var(--muted);
      line-height:1.75;
      font-size: 13.6px;
    }

    .review-grid{
      display:grid; grid-template-columns: 1fr;
      gap: 12px;
    }
    .review{
      padding: 16px;
      border-radius: var(--radius2);
      border: 1px solid rgba(24,35,52,.10);
      background: rgba(255,255,255,.86);
      box-shadow: 0 12px 30px rgba(15,23,42,.06);
      position:relative;
      overflow:hidden;
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .review:hover{transform: translateY(-2px); box-shadow: 0 18px 46px rgba(15,23,42,.10); border-color: rgba(14,165,233,.20)}
    .review::before{
      content:"";
      position:absolute; inset:-2px;
      background: radial-gradient(420px 180px at 20% 0%, rgba(14,165,233,.14), transparent 60%);
      pointer-events:none;
    }
    .review > *{position:relative}
    .review-top{
      display:flex; align-items:flex-start; justify-content:space-between; gap: 12px;
    }
    .review-person{
      display:flex; gap:12px; align-items:flex-start;
    }
    .avatar{
      width:44px; height:44px; border-radius: 18px;
      background: linear-gradient(135deg, rgba(255,59,92,.16), rgba(109,40,217,.14));
      border: 1px solid rgba(24,35,52,.10);
      display:flex; align-items:center; justify-content:center;
      font-weight: 950;
      color: rgba(31,35,40,.92);
    }
    .review-person strong{display:block; font-size: 14.6px}
    .review-person span{display:block; margin-top:6px; color: var(--muted); font-size: 13.1px; line-height:1.5}
    .review p{
      margin: 12px 0 0;
      color: rgba(31,35,40,.86);
      line-height: 1.8;
      font-size: 13.6px;
    }

    .form-grid{
      display:grid;
      grid-template-columns: .95fr 1.05fr;
      gap: 14px;
      align-items:start;
    }
    .form-card{
      background: rgba(255,255,255,.88);
      border: 1px solid rgba(24,35,52,.10);
      border-radius: var(--radius2);
      padding: 16px;
      box-shadow: 0 12px 30px rgba(15,23,42,.06);
    }
    .form-card h3{margin:0; font-size: 15.8px}
    .form-card p{margin:10px 0 0; color: var(--muted); line-height:1.7; font-size: 13.6px}
    form{
      margin-top: 12px;
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
    }
    label{
      display:flex; flex-direction:column;
      gap: 6px;
      font-weight: 800;
      color: rgba(31,35,40,.92);
      font-size: 13px;
    }
    input, select, textarea{
      width:100%;
      padding: 11px 12px;
      border-radius: 14px;
      border: 1px solid rgba(24,35,52,.12);
      background: rgba(255,255,255,.88);
      color: rgba(31,35,40,.95);
      font-size: 14px;
      transition: box-shadow .18s ease, border-color .18s ease, transform .18s ease;
    }
    textarea{min-height: 110px; resize: vertical}
    input:focus, select:focus, textarea:focus{
      outline:none; box-shadow: var(--focus);
      border-color: rgba(255,59,92,.32);
    }
    .full{grid-column: 1 / -1}
    .submit-row{
      grid-column: 1 / -1;
      display:flex; gap:12px; flex-wrap:wrap; align-items:center; justify-content:space-between;
      margin-top: 2px;
    }
    .hint{
      color: var(--muted);
      font-size: 12.8px;
      line-height:1.5;
      flex:1 1 auto;
      min-width: 240px;
    }
    .submit-row .btn-primary{padding: 12px 16px}

    .support{
      display:flex; flex-direction:column; gap: 12px;
    }
    .support-card{
      border-radius: var(--radius2);
      border: 1px solid rgba(24,35,52,.10);
      background: rgba(255,255,255,.86);
      box-shadow: 0 12px 30px rgba(15,23,42,.06);
      padding: 16px;
    }
    .support-card h3{margin:0; font-size: 15.8px}
    .support-card p{margin:10px 0 0; color: var(--muted); font-size: 13.6px; line-height:1.7}
    .contact-row{
      display:flex; gap: 12px; flex-wrap:wrap;
      margin-top: 12px;
      align-items:center;
    }
    .contact-item{
      flex: 1 1 200px;
      min-width: 200px;
      padding: 12px 12px;
      border-radius: 16px;
      border: 1px solid rgba(24,35,52,.10);
      background: rgba(255,255,255,.78);
    }
    .contact-item strong{display:block; font-size: 13.8px}
    .contact-item a{
      display:inline-flex; margin-top:8px;
      color: rgba(31,35,40,.92);
      font-weight: 900;
      gap: 8px;
      align-items:center;
    }
    .contact-item span{
      display:block;
      margin-top:8px;
      color: var(--muted);
      font-size: 13px;
      line-height:1.6;
      word-break:break-word;
    }
    .qr-wrap{
      display:flex; align-items:flex-start; gap: 12px; flex-wrap:wrap;
      margin-top: 12px;
    }
    .qr{
      width: 120px;
      border-radius: 18px;
      border: 1px solid rgba(24,35,52,.10);
      background: rgba(255,255,255,.84);
      padding: 10px;
    }
    .qr img{width:100%; height:auto; display:block; border-radius: 12px}
    .qr-meta strong{display:block; font-size: 14.2px}
    .qr-meta span{display:block; margin-top:6px; color: var(--muted); font-size: 13.3px; line-height:1.6}

    footer{
      margin-top: 6px;
      background: linear-gradient(180deg, rgba(31,35,40,.03), rgba(31,35,40,.06));
      border-top: 1px solid rgba(24,35,52,.10);
    }
    .footer-inner{
      padding: 22px 0 26px;
    }
    .foot-grid{
      display:grid; grid-template-columns: 1fr 1fr;
      gap: 14px;
      align-items:start;
    }
    .foot-brand{
      display:flex; gap:12px; align-items:flex-start;
    }
    .foot-brand .logo{
      width:52px; height:52px; border-radius:18px;
      border:1px solid rgba(24,35,52,.10);
      background: rgba(255,255,255,.86);
      padding: 8px;
      display:flex; align-items:center; justify-content:center;
    }
    .foot-brand img{width:100%; height:auto; display:block}
    .foot-brand strong{display:block; font-size: 14.8px}
    .foot-brand span{display:block; margin-top: 6px; color: var(--muted); font-size: 13.2px; line-height:1.6}
    .friend-links{
      display:flex; flex-wrap:wrap; gap:10px;
      justify-content:flex-end;
    }
    .friend-links a{
      padding: 10px 12px;
      border-radius: 999px;
      border: 1px solid rgba(24,35,52,.10);
      background: rgba(255,255,255,.72);
      font-weight: 850;
      font-size: 13px;
      transition: transform .18s ease, border-color .18s ease;
      white-space:nowrap;
    }
    .friend-links a:hover{transform: translateY(-2px); border-color: rgba(255,59,92,.22)}
    .copyright{
      margin-top: 14px;
      display:flex; align-items:center; justify-content:space-between; gap: 10px;
      color: var(--muted);
      font-size: 12.8px;
      flex-wrap:wrap;
    }
    .backtop{
      position:fixed;
      right: 16px; bottom: 16px;
      z-index:60;
      width: 46px; height: 46px;
      border-radius: 18px;
      border: 1px solid rgba(24,35,52,.12);
      background: rgba(255,255,255,.92);
      box-shadow: 0 16px 40px rgba(15,23,42,.12);
      display:flex; align-items:center; justify-content:center;
      cursor:pointer;
      transform: translateY(14px);
      opacity:0;
      pointer-events:none;
      transition: opacity .18s ease, transform .18s ease, background .18s ease;
    }
    .backtop.show{
      opacity:1;
      pointer-events:auto;
      transform: translateY(0);
    }
    .backtop svg{width:20px; height:20px}

    .float-kefu{
      position:fixed;
      left: 16px; bottom: 16px;
      z-index:60;
      display:flex; gap: 10px; align-items:center;
      background: rgba(255,255,255,.92);
      border: 1px solid rgba(24,35,52,.12);
      border-radius: 22px;
      padding: 10px 12px;
      box-shadow: 0 16px 40px rgba(15,23,42,.12);
      cursor:pointer;
      transition: transform .18s ease, border-color .18s ease;
    }
    .float-kefu:hover{transform: translateY(-2px); border-color: rgba(14,165,233,.22)}
    .float-kefu .kicon{
      width:36px; height:36px; border-radius: 16px;
      background: rgba(14,165,233,.10);
      border: 1px solid rgba(14,165,233,.20);
      display:flex; align-items:center; justify-content:center;
      flex:0 0 auto;
    }
    .float-kefu .kicon svg{width:18px; height:18px}
    .float-kefu strong{
      font-size: 13px;
      letter-spacing:-.1px;
    }
    .float-kefu span{
      display:block;
      margin-top:2px;
      color: var(--muted);
      font-size: 12.2px;
      line-height:1.2;
    }

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

    @media (max-width: 980px){
      .hero-grid{grid-template-columns: 1fr; }
      .nav-links{display:none}
      .nav-cta{display:none}
      .hamburger{display:inline-flex; align-items:center; justify-content:center}
      .mobile-panel{display:none}
      .mobile-panel.open{display:block}
      .hero{padding-top: 18px}
      .metrics{grid-template-columns: 1fr 1fr}
      .grid-3{grid-template-columns: 1fr; }
      .three-step{grid-template-columns: 1fr 1fr}
      .panel-split{grid-template-columns: 1fr}
      .compare{grid-template-columns: 1fr}
      .timeline{grid-template-columns: 1fr}
      .case-grid{grid-template-columns: 1fr}
      .articles{grid-template-columns: 1fr}
      .faq-wrap{grid-template-columns: 1fr}
      .form-grid{grid-template-columns: 1fr}
      .list2{grid-template-columns: 1fr}
      .foot-grid{grid-template-columns: 1fr}
      .friend-links{justify-content:flex-start}
      .float-kefu span{display:none}
    }
    @media (max-width: 520px){
      .container{padding: 0 14px}
      .hero-card{padding: 16px}
      .hero-side{padding: 12px}
      form{grid-template-columns: 1fr}
      .metrics{grid-template-columns: 1fr}
      .three-step{grid-template-columns: 1fr}
      .submit-row{justify-content:flex-start}
      .float-kefu{left: 12px; bottom: 12px}
      .backtop{right: 12px; bottom: 12px}
    }