:root{
      --bg0:#fbfbff;
      --bg1:#f6f7ff;
      --card:#ffffff;
      --text:#111827;
      --muted:#4b5563;
      --muted2:#6b7280;
      --line:rgba(17,24,39,.10);
      --shadow:0 16px 40px rgba(17,24,39,.08);
      --shadow2:0 10px 28px rgba(17,24,39,.10);
      --brand:#2563eb;
      --brand2:#7c3aed;
      --brand3:#06b6d4;
      --ok:#16a34a;
      --warn:#f59e0b;
      --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 Neue", Arial, "Noto Sans", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
      color:var(--text);
      background:
        radial-gradient(1100px 600px at 20% -10%, rgba(37,99,235,.18), transparent 55%),
        radial-gradient(1000px 520px at 100% 0%, rgba(124,58,237,.16), transparent 55%),
        radial-gradient(900px 520px at 50% 20%, rgba(6,182,212,.10), transparent 60%),
        linear-gradient(180deg, var(--bg1), var(--bg0) 55%, #fff 120%);
      overflow-x:hidden;
    }
    a{color:inherit}
    .container{max-width:var(--container); margin:0 auto; padding:0 20px;}
    .topbar{
      position:sticky; top:0; z-index:50;
      backdrop-filter:saturate(160%) blur(10px);
      background:rgba(255,255,255,.74);
      border-bottom:1px solid rgba(17,24,39,.08);
    }
    .nav-wrap{
      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;
    }
    .logo{
      width:40px; height:40px; border-radius:12px;
      background:linear-gradient(135deg, rgba(37,99,235,.18), rgba(124,58,237,.16));
      display:flex; align-items:center; justify-content:center;
      border:1px solid rgba(17,24,39,.10);
      overflow:hidden;
      flex:0 0 auto;
    }
    .logo img{width:100%; height:100%; object-fit:contain; display:block}
    .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(--muted2)}
    .nav{
      display:flex; align-items:center; gap:14px; flex-wrap:wrap; justify-content:flex-end;
    }
    .nav a{
      text-decoration:none;
      font-size:13px;
      color:rgba(17,24,39,.82);
      padding:8px 10px;
      border-radius:12px;
      border:1px solid transparent;
      transition:background .2s ease, border-color .2s ease, transform .2s ease;
      white-space:nowrap;
    }
    .nav a:hover{
      background:rgba(37,99,235,.06);
      border-color:rgba(37,99,235,.18);
      transform:translateY(-1px);
    }
    .nav-cta{
      display:flex; align-items:center; gap:10px;
    }
    .btn{
      appearance:none; border:1px solid transparent;
      background:transparent; color:var(--text);
      padding:10px 14px; border-radius:14px;
      font-size:13px; font-weight:650;
      display:inline-flex; align-items:center; gap:8px;
      cursor:pointer; text-decoration:none;
      transition:transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease, color .18s ease;
      user-select:none;
    }
    .btn:active{transform:translateY(1px)}
    .btn-primary{
      background:linear-gradient(135deg, var(--brand), var(--brand2));
      color:#fff;
      box-shadow:0 14px 34px rgba(37,99,235,.22);
    }
    .btn-primary:hover{box-shadow:0 18px 44px rgba(37,99,235,.30); transform:translateY(-1px)}
    .btn-ghost{
      border-color:rgba(17,24,39,.12);
      background:rgba(255,255,255,.6);
    }
    .btn-ghost:hover{
      border-color:rgba(37,99,235,.26);
      background:rgba(37,99,235,.06);
      transform:translateY(-1px);
    }
    .icon{
      width:16px; height:16px; display:inline-block;
    }

    .hamburger{display:none}
    .mobile-menu{
      display:none;
      border-top:1px solid rgba(17,24,39,.08);
      padding:10px 0 14px;
    }
    .mobile-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:10px;
    }
    .mobile-grid a{
      text-decoration:none; font-size:13px; color:rgba(17,24,39,.82);
      background:rgba(255,255,255,.75);
      border:1px solid rgba(17,24,39,.10);
      border-radius:14px;
      padding:10px 12px;
      display:flex; align-items:center; justify-content:space-between; gap:10px;
    }
    .mobile-grid a:active{transform:translateY(1px)}
    .mobile-actions{
      display:flex; gap:10px; margin-top:10px;
    }
    .mobile-actions .btn{flex:1; justify-content:center}

    .hero{
      padding:26px 0 10px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns: 1.05fr .95fr;
      gap:18px;
      align-items:stretch;
    }
    .hero-left{
      background:linear-gradient(180deg, rgba(255,255,255,.74), rgba(255,255,255,.40));
      border:1px solid rgba(17,24,39,.08);
      border-radius:var(--radius2);
      box-shadow:0 18px 60px rgba(17,24,39,.08);
      padding:22px;
      position:relative;
      overflow:hidden;
    }
    .hero-left:before{
      content:"";
      position:absolute; inset:-2px;
      background:
        radial-gradient(700px 360px at 12% 18%, rgba(37,99,235,.22), transparent 55%),
        radial-gradient(600px 320px at 76% 10%, rgba(124,58,237,.18), transparent 55%),
        radial-gradient(520px 260px at 60% 70%, rgba(6,182,212,.14), transparent 60%);
      pointer-events:none;
      opacity:.95;
    }
    .hero-left > *{position:relative; z-index:1}
    .badge-row{display:flex; flex-wrap:wrap; gap:10px; align-items:center}
    .badge{
      display:inline-flex; align-items:center; gap:8px;
      background:rgba(255,255,255,.72);
      border:1px solid rgba(17,24,39,.10);
      padding:8px 10px;
      border-radius:999px;
      font-size:12px;
      color:rgba(17,24,39,.86);
      box-shadow:0 10px 26px rgba(17,24,39,.06);
    }
    .dot{
      width:10px; height:10px; border-radius:50%;
      background:linear-gradient(135deg, var(--brand), var(--brand2));
      box-shadow:0 0 0 6px rgba(37,99,235,.12);
    }
    .h1{
      margin:14px 0 8px;
      font-size:30px;
      letter-spacing:-.6px;
      line-height:1.2;
    }
    .lead{
      margin:0;
      color:var(--muted);
      font-size:14px;
      line-height:1.75;
      max-width:62ch;
    }
    .hero-actions{
      display:flex; gap:12px; align-items:center; flex-wrap:wrap;
      margin-top:16px;
    }
    .hero-mini{
      margin-top:16px;
      display:grid;
      grid-template-columns: repeat(3, minmax(0,1fr));
      gap:10px;
    }
    .mini-card{
      background:rgba(255,255,255,.62);
      border:1px solid rgba(17,24,39,.08);
      border-radius:16px;
      padding:12px 12px;
      transition:transform .2s ease, box-shadow .2s ease;
    }
    .mini-card:hover{
      transform:translateY(-2px);
      box-shadow:0 18px 44px rgba(17,24,39,.10);
    }
    .mini-card .k{font-weight:800; font-size:14px; letter-spacing:-.2px}
    .mini-card .v{margin-top:6px; color:var(--muted2); font-size:12px; line-height:1.5}
    .hero-right{
      display:flex;
      flex-direction:column;
      gap:12px;
    }
    .pulse-panel{
      border-radius:var(--radius2);
      border:1px solid rgba(17,24,39,.08);
      background:linear-gradient(180deg, rgba(255,255,255,.64), rgba(255,255,255,.42));
      box-shadow:0 16px 48px rgba(17,24,39,.06);
      overflow:hidden;
      position:relative;
      padding:16px;
      min-height: 240px;
    }
    .pulse-panel:after{
      content:"";
      position:absolute;
      left:-20%;
      top:-30%;
      width:140%;
      height:60%;
      background:radial-gradient(circle at 30% 60%, rgba(37,99,235,.22), transparent 55%);
      transform:rotate(-8deg);
      pointer-events:none;
      animation:floatGlow 7s ease-in-out infinite;
      opacity:.9;
    }
    @keyframes floatGlow{
      0%,100%{transform:translateY(0) rotate(-8deg); opacity:.75}
      50%{transform:translateY(10px) rotate(-6deg); opacity:1}
    }
    .pulse-panel > *{position:relative; z-index:1}
    .panel-title{
      display:flex; align-items:center; justify-content:space-between; gap:12px;
      margin-bottom:10px;
    }
    .panel-title h2{
      margin:0;
      font-size:14px;
      letter-spacing:.2px;
    }
    .signal{
      display:flex; align-items:center; gap:8px;
      color:rgba(17,24,39,.75);
      font-size:12px;
    }
    .bars{
      width:34px; height:16px; display:flex; gap:3px; align-items:flex-end;
    }
    .bars span{
      width:6px; border-radius:10px;
      background:linear-gradient(180deg, rgba(37,99,235,.95), rgba(124,58,237,.65));
      opacity:.75;
      animation:bar 1.8s ease-in-out infinite;
    }
    .bars span:nth-child(1){height:8px; animation-delay:0s}
    .bars span:nth-child(2){height:12px; animation-delay:.18s}
    .bars span:nth-child(3){height:16px; animation-delay:.36s}
    @keyframes bar{
      0%,100%{transform:scaleY(.86); opacity:.65}
      50%{transform:scaleY(1.05); opacity:1}
    }
    .tool-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:10px;
      margin-top:10px;
    }
    .tool{
      background:rgba(255,255,255,.66);
      border:1px solid rgba(17,24,39,.08);
      border-radius:16px;
      padding:12px;
      display:flex; flex-direction:column; gap:6px;
      min-height:82px;
      transition:transform .18s ease, border-color .18s ease;
    }
    .tool:hover{
      transform:translateY(-2px);
      border-color:rgba(37,99,235,.22);
    }
    .tool strong{font-size:13px}
    .tool span{font-size:12px; color:var(--muted2); line-height:1.5}
    .spark-row{
      display:flex; flex-wrap:wrap; gap:10px; margin-top:10px;
    }
    .chip{
      display:inline-flex; align-items:center; gap:8px;
      font-size:12px;
      padding:9px 10px;
      border-radius:999px;
      background:rgba(37,99,235,.06);
      border:1px solid rgba(37,99,235,.16);
      color:rgba(17,24,39,.82);
      white-space:nowrap;
    }
    .chip em{
      font-style:normal;
      color:var(--brand);
      font-weight:800;
    }

    .section{padding:26px 0}
    .section h2.sec-title{
      font-size:18px;
      letter-spacing:-.2px;
      margin:0;
    }
    .section .sub{
      margin:8px 0 0;
      color:var(--muted);
      font-size:13px;
      line-height:1.7;
      max-width:78ch;
    }
    .sec-head{
      display:flex; align-items:flex-end; justify-content:space-between; gap:16px; flex-wrap:wrap;
      margin-bottom:14px;
    }
    .sec-right{
      display:flex; gap:10px; align-items:center; flex-wrap:wrap;
    }
    .tag{
      font-size:12px; color:rgba(17,24,39,.78);
      border:1px solid rgba(17,24,39,.10);
      background:rgba(255,255,255,.62);
      padding:8px 10px; border-radius:999px;
    }

    .grid-3{display:grid; grid-template-columns:repeat(3, minmax(0,1fr)); gap:14px}
    .grid-4{display:grid; grid-template-columns:repeat(4, minmax(0,1fr)); gap:12px}
    .card{
      background:rgba(255,255,255,.72);
      border:1px solid rgba(17,24,39,.08);
      border-radius:var(--radius);
      padding:14px;
      box-shadow:0 14px 40px rgba(17,24,39,.06);
      transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .card:hover{
      transform:translateY(-3px);
      border-color:rgba(37,99,235,.18);
      box-shadow:0 22px 54px rgba(17,24,39,.10);
    }
    .card h3{
      margin:0;
      font-size:14px;
      letter-spacing:-.15px;
    }
    .card p{
      margin:8px 0 0;
      color:var(--muted);
      font-size:13px;
      line-height:1.65;
    }
    .metric{
      display:flex; align-items:flex-start; justify-content:space-between; gap:10px;
    }
    .metric strong{
      font-size:18px;
      letter-spacing:-.3px;
    }
    .metric span{
      display:block;
      margin-top:6px;
      color:var(--muted2);
      font-size:12px;
      line-height:1.5;
    }
    .badge-num{
      width:38px; height:38px;
      border-radius:14px;
      display:flex; align-items:center; justify-content:center;
      border:1px solid rgba(17,24,39,.10);
      background:linear-gradient(135deg, rgba(37,99,235,.12), rgba(124,58,237,.10));
      color:var(--brand);
      font-weight:900;
    }

    .steps{
      display:grid; grid-template-columns:repeat(5, minmax(0,1fr)); gap:10px;
      align-items:stretch;
    }
    .step{
      padding:12px;
      border-radius:var(--radius);
      border:1px solid rgba(17,24,39,.08);
      background:rgba(255,255,255,.68);
      box-shadow:0 12px 34px rgba(17,24,39,.05);
      position:relative;
      overflow:hidden;
    }
    .step:before{
      content:"";
      position:absolute;
      inset:-1px;
      background:linear-gradient(135deg, rgba(37,99,235,.16), rgba(124,58,237,.10), rgba(6,182,212,.10));
      opacity:.0;
      transition:opacity .2s ease;
      pointer-events:none;
    }
    .step:hover:before{opacity:.7}
    .step > *{position:relative; z-index:1}
    .step .top{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      margin-bottom:10px;
    }
    .step .n{
      width:34px; height:34px;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.10);
      background:rgba(255,255,255,.7);
      display:flex; align-items:center; justify-content:center;
      font-weight:900; color:var(--brand);
      box-shadow:0 10px 26px rgba(37,99,235,.10);
    }
    .step .time{
      font-size:12px; color:rgba(17,24,39,.72);
      border:1px solid rgba(17,24,39,.10);
      background:rgba(255,255,255,.66);
      padding:6px 10px; border-radius:999px;
      white-space:nowrap;
    }
    .step h3{margin:0; font-size:13px}
    .step p{margin:8px 0 0; color:var(--muted); font-size:12.5px; line-height:1.6}

    .compare-wrap{
      background:linear-gradient(180deg, rgba(255,255,255,.70), rgba(255,255,255,.46));
      border:1px solid rgba(17,24,39,.08);
      border-radius:var(--radius2);
      padding:14px;
      box-shadow:0 18px 60px rgba(17,24,39,.06);
    }
    .compare-head{
      display:flex; align-items:flex-start; justify-content:space-between; gap:14px; flex-wrap:wrap;
      margin-bottom:10px;
    }
    .rating{
      display:flex; flex-direction:column; gap:8px; min-width:260px;
    }
    .rating .stars{
      display:flex; align-items:center; gap:8px;
      flex-wrap:wrap;
    }
    .star-row{display:flex; gap:4px; align-items:center}
    .star{
      width:18px; height:18px;
      background:conic-gradient(from 180deg, #fbbf24, #f59e0b);
      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(245,158,11,.26));
    }
    .rating strong{
      font-size:22px; letter-spacing:-.4px;
    }
    .rating .label{
      color:var(--muted);
      font-size:12.5px;
      line-height:1.6;
    }
    .score-pill{
      display:flex; flex-direction:column; align-items:flex-end; gap:6px;
    }
    .score-pill .pill{
      background:rgba(16,185,129,.10);
      border:1px solid rgba(16,185,129,.22);
      color:rgba(17,24,39,.90);
      padding:10px 12px;
      border-radius:16px;
      min-width:170px;
      text-align:right;
    }
    .score-pill .pill b{color:var(--ok)}
    .table-wrap{
      overflow:auto;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.08);
      background:rgba(255,255,255,.62);
    }
    table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      min-width:760px;
      font-size:13px;
    }
    th, td{
      padding:12px 12px;
      border-bottom:1px solid rgba(17,24,39,.08);
      border-right:1px solid rgba(17,24,39,.06);
      vertical-align:top;
    }
    th:last-child, td:last-child{border-right:none}
    tr:last-child td{border-bottom:none}
    th{
      position:sticky; top:0;
      background:linear-gradient(180deg, rgba(255,255,255,.90), rgba(255,255,255,.70));
      z-index:1;
      text-align:left;
      font-weight:800;
    }
    .good{
      display:inline-flex; align-items:center; gap:8px;
      color:rgba(17,24,39,.9);
      font-weight:700;
    }
    .good i{
      width:18px; height:18px; border-radius:8px;
      display:inline-flex; align-items:center; justify-content:center;
      background:rgba(16,185,129,.12);
      border:1px solid rgba(16,185,129,.22);
      color:rgba(16,185,129,.95);
      font-style:normal;
      font-weight:900;
      font-size:12px;
    }
    .mid{
      display:inline-flex; align-items:center; gap:8px;
      color:rgba(17,24,39,.8);
      font-weight:650;
    }
    .mid i{
      width:18px; height:18px; border-radius:8px;
      display:inline-flex; align-items:center; justify-content:center;
      background:rgba(245,158,11,.12);
      border:1px solid rgba(245,158,11,.22);
      color:rgba(245,158,11,.95);
      font-style:normal;
      font-weight:900;
      font-size:12px;
    }

    .two-col{
      display:grid;
      grid-template-columns: 1.05fr .95fr;
      gap:14px;
      align-items:start;
    }
    .list{
      margin:10px 0 0;
      padding:0; list-style:none;
      display:grid; gap:10px;
    }
    .li{
      display:flex; gap:10px; align-items:flex-start;
      padding:12px; border-radius:16px;
      border:1px solid rgba(17,24,39,.08);
      background:rgba(255,255,255,.66);
      transition:transform .18s ease, border-color .18s ease;
    }
    .li:hover{transform:translateY(-2px); border-color:rgba(37,99,235,.18)}
    .li .mark{
      width:26px; height:26px; border-radius:10px;
      background:linear-gradient(135deg, rgba(37,99,235,.14), rgba(124,58,237,.10));
      border:1px solid rgba(37,99,235,.22);
      display:flex; align-items:center; justify-content:center;
      color:var(--brand);
      flex:0 0 auto;
      font-weight:900;
      font-size:12px;
    }
    .li strong{font-size:13px}
    .li span{display:block; margin-top:4px; color:var(--muted); font-size:12.5px; line-height:1.6}
    .panel{
      background:rgba(255,255,255,.70);
      border:1px solid rgba(17,24,39,.08);
      border-radius:var(--radius2);
      padding:14px;
      box-shadow:0 18px 60px rgba(17,24,39,.06);
    }
    .panel h3{margin:0; font-size:14px}
    .panel .p{
      margin:10px 0 0; color:var(--muted); font-size:13px; line-height:1.7
    }

    .review-grid{
      display:grid; grid-template-columns:repeat(3, minmax(0,1fr)); gap:12px;
    }
    .review{
      padding:14px;
      border-radius:var(--radius);
      border:1px solid rgba(17,24,39,.08);
      background:rgba(255,255,255,.68);
      box-shadow:0 14px 40px rgba(17,24,39,.05);
      display:flex; flex-direction:column; gap:10px;
    }
    .who{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
    }
    .who strong{font-size:13px}
    .who span{color:var(--muted2); font-size:12px}
    .review p{margin:0; color:var(--muted); font-size:13px; line-height:1.75}
    .avatar{
      width:36px; height:36px; border-radius:14px;
      border:1px solid rgba(17,24,39,.10);
      background:linear-gradient(135deg, rgba(37,99,235,.12), rgba(6,182,212,.10));
      display:flex; align-items:center; justify-content:center;
      font-weight:900; color:rgba(37,99,235,.95);
      flex:0 0 auto;
    }

    .press{
      display:grid; grid-template-columns:1fr 1fr; gap:14px;
      align-items:stretch;
    }
    .case-grid{
      display:grid; grid-template-columns:repeat(3, minmax(0,1fr)); gap:12px;
    }
    .case{
      padding:14px;
      border-radius:var(--radius);
      border:1px solid rgba(17,24,39,.08);
      background:rgba(255,255,255,.66);
      box-shadow:0 14px 40px rgba(17,24,39,.05);
      display:flex; flex-direction:column; gap:10px;
      transition:transform .2s ease, border-color .2s ease;
      min-height:210px;
    }
    .case:hover{transform:translateY(-3px); border-color:rgba(37,99,235,.18)}
    .case .top{
      display:flex; align-items:flex-start; justify-content:space-between; gap:10px;
    }
    .case .type{
      font-size:12px;
      padding:7px 10px;
      border-radius:999px;
      background:rgba(37,99,235,.08);
      border:1px solid rgba(37,99,235,.16);
      color:rgba(17,24,39,.82);
      white-space:nowrap;
    }
    .case h3{margin:0; font-size:14px; letter-spacing:-.15px}
    .case .desc{margin:0; color:var(--muted); font-size:13px; line-height:1.7}
    .case .meta{
      margin-top:auto;
      display:flex; gap:10px; flex-wrap:wrap;
      color:var(--muted2); font-size:12px;
    }
    .meta .pill{
      border:1px solid rgba(17,24,39,.10);
      background:rgba(255,255,255,.65);
      padding:7px 10px; border-radius:999px;
    }

    .article-grid{
      display:grid; grid-template-columns:repeat(3, minmax(0,1fr)); gap:12px;
    }
    .article{
      padding:14px;
      border-radius:var(--radius);
      border:1px solid rgba(17,24,39,.08);
      background:rgba(255,255,255,.66);
      box-shadow:0 14px 40px rgba(17,24,39,.05);
      transition:transform .2s ease, border-color .2s ease;
      display:flex; flex-direction:column; gap:10px;
      min-height:190px;
    }
    .article:hover{transform:translateY(-3px); border-color:rgba(124,58,237,.18)}
    .article .k{
      display:flex; gap:10px; align-items:center; justify-content:space-between;
    }
    .article .cat{
      font-size:12px; color:rgba(17,24,39,.82);
      background:rgba(124,58,237,.08);
      border:1px solid rgba(124,58,237,.18);
      padding:7px 10px; border-radius:999px;
    }
    .article .date{color:var(--muted2); font-size:12px; white-space:nowrap}
    .article h3{margin:0; font-size:14px; line-height:1.4}
    .article p{margin:0; color:var(--muted); font-size:13px; line-height:1.7}
    .article a.read{
      margin-top:auto;
      text-decoration:none;
      color:var(--brand);
      font-weight:800;
      font-size:13px;
      display:inline-flex; align-items:center; gap:8px;
    }
    .article a.read:hover{opacity:.9}

    .faq{
      display:grid; gap:10px;
    }
    details{
      border:1px solid rgba(17,24,39,.08);
      border-radius:16px;
      background:rgba(255,255,255,.68);
      box-shadow:0 12px 34px rgba(17,24,39,.04);
      padding:12px 12px;
    }
    summary{
      cursor:pointer;
      font-weight:850;
      font-size:13.5px;
      list-style:none;
      display:flex; align-items:center; justify-content:space-between; gap:12px;
      color:rgba(17,24,39,.92);
    }
    summary::-webkit-details-marker{display:none}
    .sum-right{
      display:flex; align-items:center; gap:10px; color:var(--muted2); font-weight:750; font-size:12px;
    }
    .chev{
      width:28px; height:28px; border-radius:12px;
      border:1px solid rgba(17,24,39,.10);
      background:rgba(255,255,255,.70);
      display:flex; align-items:center; justify-content:center;
      transition:transform .2s ease, border-color .2s ease;
      flex:0 0 auto;
    }
    details[open] .chev{transform:rotate(180deg); border-color:rgba(37,99,235,.20)}
    .ans{
      margin-top:10px;
      color:var(--muted);
      font-size:13px;
      line-height:1.75;
    }

    .form-grid{
      display:grid; grid-template-columns:1fr 1fr; gap:12px; align-items:start;
    }
    .form-card{
      padding:14px;
      border-radius:var(--radius2);
      border:1px solid rgba(17,24,39,.08);
      background:rgba(255,255,255,.70);
      box-shadow:0 18px 60px rgba(17,24,39,.06);
    }
    .form-card h3{margin:0; font-size:14px}
    label{
      display:block;
      font-size:12px;
      color:rgba(17,24,39,.78);
      font-weight:800;
      margin:10px 0 6px;
    }
    input, select, textarea{
      width:100%;
      padding:11px 12px;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.14);
      background:rgba(255,255,255,.86);
      outline:none;
      color:var(--text);
      font-size:13.5px;
      transition:border-color .18s ease, box-shadow .18s ease;
    }
    textarea{min-height:112px; resize:vertical}
    input:focus, select:focus, textarea:focus{
      border-color:rgba(37,99,235,.35);
      box-shadow:0 0 0 4px rgba(37,99,235,.12);
    }
    .form-actions{
      display:flex; gap:12px; align-items:center; flex-wrap:wrap;
      margin-top:12px;
    }
    .hint{
      color:var(--muted2);
      font-size:12.5px;
      line-height:1.6;
      flex:1;
      min-width:220px;
    }
    .toast{
      position:fixed; left:50%; bottom:20px; transform:translateX(-50%);
      background:rgba(17,24,39,.92);
      color:#fff;
      padding:12px 14px;
      border-radius:16px;
      box-shadow:0 22px 70px rgba(0,0,0,.28);
      font-size:13px;
      opacity:0; pointer-events:none;
      transition:opacity .2s ease, transform .2s ease;
      z-index:100;
    }
    .toast.show{
      opacity:1; transform:translateX(-50%) translateY(-6px);
    }

    .tag-cloud{
      display:flex; flex-wrap:wrap; gap:10px;
    }
    .cloud-item{
      padding:8px 10px;
      border-radius:999px;
      border:1px solid rgba(17,24,39,.10);
      background:rgba(255,255,255,.66);
      color:rgba(17,24,39,.82);
      font-size:12.5px;
      transition:transform .18s ease, border-color .18s ease, background .18s ease;
      cursor:pointer;
      user-select:none;
    }
    .cloud-item:hover{
      transform:translateY(-2px);
      border-color:rgba(6,182,212,.22);
      background:rgba(6,182,212,.06);
    }

    .timeline{
      display:grid; gap:10px;
    }
    .time-item{
      display:flex; gap:12px; align-items:flex-start;
      border:1px solid rgba(17,24,39,.08);
      background:rgba(255,255,255,.68);
      border-radius:16px;
      padding:12px;
    }
    .time-bullet{
      width:34px; height:34px; border-radius:14px;
      border:1px solid rgba(17,24,39,.10);
      background:linear-gradient(135deg, rgba(6,182,212,.12), rgba(37,99,235,.10));
      display:flex; align-items:center; justify-content:center;
      color:rgba(6,182,212,.95);
      font-weight:900;
      flex:0 0 auto;
    }
    .time-item strong{font-size:13.5px}
    .time-item p{margin:6px 0 0; color:var(--muted); font-size:12.8px; line-height:1.7}

    footer{
      padding:20px 0 26px;
      margin-top:6px;
      background:linear-gradient(180deg, rgba(255,255,255,.0), rgba(255,255,255,.45));
      border-top:1px solid rgba(17,24,39,.08);
    }
    .footer-grid{
      display:grid; grid-template-columns: 1.1fr .9fr; gap:14px; align-items:start;
    }
    .foot-card{
      border-radius:var(--radius2);
      border:1px solid rgba(17,24,39,.08);
      background:rgba(255,255,255,.72);
      box-shadow:0 18px 60px rgba(17,24,39,.05);
      padding:14px;
    }
    .foot-title{
      display:flex; align-items:center; justify-content:space-between; gap:12px; flex-wrap:wrap;
    }
    .foot-title strong{font-size:14px}
    .foot-links{
      margin-top:10px;
      display:flex; flex-wrap:wrap; gap:10px;
    }
    .foot-links a{
      text-decoration:none;
      font-size:12.5px;
      padding:8px 10px;
      border-radius:999px;
      border:1px solid rgba(17,24,39,.10);
      background:rgba(255,255,255,.70);
      transition:transform .18s ease, border-color .18s ease, background .18s ease;
      white-space:nowrap;
    }
    .foot-links a:hover{
      transform:translateY(-2px);
      border-color:rgba(124,58,237,.22);
      background:rgba(124,58,237,.06);
    }
    .copyright{
      margin-top:12px;
      display:flex; align-items:center; justify-content:space-between; gap:10px; flex-wrap:wrap;
      color:rgba(17,24,39,.70);
      font-size:12.5px;
    }
    .small-mono{
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
      font-size:12px;
      color:rgba(17,24,39,.72);
    }

    .float-help{
      position:fixed; right:14px; bottom:18px; z-index:90;
      display:flex; flex-direction:column; gap:10px; align-items:flex-end;
    }
    .help-btn{
      width:54px; height:54px; border-radius:20px;
      border:1px solid rgba(17,24,39,.12);
      background:linear-gradient(135deg, rgba(37,99,235,.20), rgba(124,58,237,.16));
      box-shadow:0 18px 50px rgba(17,24,39,.16);
      display:flex; align-items:center; justify-content:center;
      cursor:pointer;
      transition:transform .18s ease, box-shadow .18s ease;
      user-select:none;
    }
    .help-btn:hover{transform:translateY(-3px); box-shadow:0 22px 70px rgba(17,24,39,.20)}
    .help-btn:active{transform:translateY(1px)}
    .help-btn svg{width:22px; height:22px; fill:rgba(17,24,39,.85)}
    .help-card{
      width:270px;
      border-radius:22px;
      border:1px solid rgba(17,24,39,.12);
      background:rgba(255,255,255,.90);
      box-shadow:0 22px 70px rgba(17,24,39,.18);
      overflow:hidden;
      transform-origin: 100% 100%;
      transform:scale(.98);
      opacity:0;
      pointer-events:none;
      transition:opacity .18s ease, transform .18s ease;
    }
    .help-card.show{
      opacity:1; pointer-events:auto;
      transform:scale(1);
    }
    .help-top{
      padding:12px 12px 10px;
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      border-bottom:1px solid rgba(17,24,39,.08);
      background:linear-gradient(135deg, rgba(37,99,235,.10), rgba(124,58,237,.08));
    }
    .help-top strong{font-size:13px}
    .close-x{
      width:30px; height:30px;
      border-radius:12px;
      border:1px solid rgba(17,24,39,.10);
      background:rgba(255,255,255,.78);
      cursor:pointer;
      display:flex; align-items:center; justify-content:center;
      user-select:none;
    }
    .help-mid{padding:12px}
    .help-mid p{
      margin:0 0 10px;
      color:var(--muted);
      font-size:12.8px;
      line-height:1.6;
    }
    .qrcode{
      width:100%;
      border-radius:16px;
      overflow:hidden;
      border:1px solid rgba(17,24,39,.10);
      background:#fff;
      display:flex;
      align-items:center;
      justify-content:center;
      padding:8px;
    }
    .qrcode img{max-width:100%; height:auto; display:block}
    .help-links{
      padding:0 12px 12px;
      display:flex; gap:10px; flex-wrap:wrap;
    }
    .help-links a{
      flex:1;
      text-decoration:none;
      text-align:center;
      font-size:12.5px;
      padding:10px 10px;
      border-radius:16px;
      border:1px solid rgba(17,24,39,.10);
      background:rgba(255,255,255,.78);
      font-weight:850;
      transition:transform .18s ease, border-color .18s ease;
    }
    .help-links a:hover{transform:translateY(-2px); border-color:rgba(37,99,235,.22)}
    .top-link{
      width:44px; height:44px; border-radius:18px;
      border:1px solid rgba(17,24,39,.12);
      background:rgba(255,255,255,.84);
      box-shadow:0 14px 50px rgba(17,24,39,.14);
      display:flex; align-items:center; justify-content:center;
      cursor:pointer;
      transition:transform .18s ease, box-shadow .18s ease;
      position:fixed; right:14px; bottom:86px; z-index:90;
      user-select:none;
    }
    .top-link:hover{transform:translateY(-3px); box-shadow:0 20px 70px rgba(17,24,39,.18)}
    .top-link svg{width:20px; height:20px; fill:rgba(17,24,39,.85)}

    .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; }
      .hero-mini{grid-template-columns:1fr; }
      .tool-grid{grid-template-columns:1fr 1fr}
      .grid-3{grid-template-columns:1fr}
      .grid-4{grid-template-columns:1fr 1fr}
      .steps{grid-template-columns:1fr 1fr; }
      .two-col{grid-template-columns:1fr}
      .review-grid{grid-template-columns:1fr}
      .case-grid{grid-template-columns:1fr}
      .article-grid{grid-template-columns:1fr}
      .press{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
      .form-grid{grid-template-columns:1fr}
      table{min-width:640px}
    }
    @media (max-width: 860px){
      .nav{display:none}
      .nav-cta{display:none}
      .hamburger{
        display:inline-flex; align-items:center; justify-content:center;
        width:44px; height:44px; border-radius:18px;
        border:1px solid rgba(17,24,39,.12);
        background:rgba(255,255,255,.78);
        cursor:pointer;
      }
      .mobile-menu{display:block}
      .mobile-menu.hidden{display:none}
    }