:root{
      --bg0:#fbf7f1;
      --bg1:#ffffff;
      --ink:#12141a;
      --muted:#5a5f6b;
      --line:rgba(18,20,26,.10);
      --card:#ffffff;
      --shadow:0 18px 40px rgba(18,20,26,.08);
      --shadow2:0 10px 24px rgba(18,20,26,.10);
      --radius:18px;
      --radius2:14px;
      --brand1:#2b59ff;
      --brand2:#12b981;
      --brand3:#ff5c8a;
      --brand4:#ffb020;
      --focus:rgba(43,89,255,.20);
      --chip:rgba(18,20,26,.06);
      --btnText:#0b1220;
      --heroText:#0b1326;
      --grad:linear-gradient(135deg, rgba(43,89,255,.16), rgba(18,185,129,.16) 45%, rgba(255,92,138,.16));
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB",
        "Microsoft YaHei", "Noto Sans CJK SC", "Noto Sans SC", Arial, sans-serif;
      color:var(--ink);
      background:
        radial-gradient(1000px 500px at 20% -10%, rgba(255,176,32,.22), transparent 60%),
        radial-gradient(900px 520px at 80% 10%, rgba(43,89,255,.18), transparent 60%),
        radial-gradient(700px 420px at 60% 80%, rgba(18,185,129,.18), transparent 60%),
        linear-gradient(180deg, var(--bg0), #ffffff 55%, #fbfbfc 100%);
    }
    a{color:inherit; text-decoration:none}
    .container{
      width:100%;
      max-width:1120px;
      margin:0 auto;
      padding:0 18px;
    }
    .skip{
      position:absolute; left:12px; top:-60px;
      padding:10px 12px; background:#fff; border:1px solid var(--line); border-radius:10px;
      z-index:999;
    }
    .skip:focus{top:12px; outline:none; box-shadow:0 0 0 4px var(--focus)}
    header{
      position:sticky; top:0; z-index:50;
      backdrop-filter:saturate(140%) blur(10px);
      background:rgba(251,247,241,.66);
      border-bottom:1px solid rgba(18,20,26,.06);
    }
    .nav-wrap{
      display:flex; align-items:center; justify-content:space-between;
      gap:14px; padding:12px 0;
    }
    .brand{
      display:flex; align-items:center; gap:10px; min-width:220px;
    }
    .ai-page-logo{
      width:34px; height:34px; object-fit:contain;
      filter: drop-shadow(0 8px 16px rgba(18,20,26,.12));
    }
    .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)}
    nav{
      display:flex; align-items:center; gap:10px;
      flex-wrap:nowrap;
      justify-content:flex-end;
    }
    .nav-links{
      display:flex; gap:6px; align-items:center;
      padding:6px;
      border:1px solid rgba(18,20,26,.07);
      background:rgba(255,255,255,.65);
      border-radius:999px;
      box-shadow:0 10px 30px rgba(18,20,26,.05);
    }
    .nav-links a{
      display:inline-flex; align-items:center; gap:8px;
      padding:10px 10px;
      border-radius:999px;
      font-size:13px;
      color:rgba(18,20,26,.86);
      transition:background .2s ease, transform .2s ease;
      white-space:nowrap;
    }
    .nav-links a:hover{
      background:rgba(43,89,255,.10);
      transform:translateY(-1px);
    }
    .nav-cta{
      display:flex; align-items:center; gap:10px;
    }
    .btn{
      display:inline-flex; align-items:center; justify-content:center;
      gap:10px;
      padding:11px 14px;
      border-radius:12px;
      border:1px solid rgba(18,20,26,.10);
      background:rgba(255,255,255,.8);
      color:rgba(18,20,26,.92);
      font-size:14px;
      cursor:pointer;
      transition:transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
      user-select:none;
    }
    .btn:hover{
      transform:translateY(-1px);
      box-shadow:0 14px 30px rgba(18,20,26,.10);
      border-color:rgba(43,89,255,.22);
    }
    .btn:focus{outline:none; box-shadow:0 0 0 4px var(--focus)}
    .btn-primary{
      border-color:rgba(43,89,255,.25);
      background:linear-gradient(135deg, rgba(43,89,255,.15), rgba(18,185,129,.14) 45%, rgba(255,92,138,.12));
    }
    .btn-strong{
      border-color:rgba(18,20,26,.08);
      background:linear-gradient(135deg, rgba(43,89,255,.16), rgba(255,176,32,.16));
      color:rgba(10,16,28,.95);
    }
    .icon-dot{
      width:10px; height:10px; border-radius:50%;
      background:linear-gradient(180deg, var(--brand1), var(--brand3));
      box-shadow:0 10px 20px rgba(43,89,255,.20);
    }
    .menu-btn{
      display:none;
      width:44px; height:44px;
      border-radius:12px;
      border:1px solid rgba(18,20,26,.10);
      background:rgba(255,255,255,.75);
      cursor:pointer;
    }
    .menu-btn:focus{outline:none; box-shadow:0 0 0 4px var(--focus)}
    .menu-ico{
      width:18px; height:12px; position:relative; margin:0 auto;
    }
    .menu-ico span{
      position:absolute; left:0; right:0;
      height:2px; border-radius:2px;
      background:rgba(18,20,26,.85);
      transition:transform .22s ease, top .22s ease, opacity .22s ease;
    }
    .menu-ico span:nth-child(1){top:0}
    .menu-ico span:nth-child(2){top:5px}
    .menu-ico span:nth-child(3){top:10px}
    .menu-btn[aria-expanded="true"] .menu-ico span:nth-child(1){top:5px; transform:rotate(45deg)}
    .menu-btn[aria-expanded="true"] .menu-ico span:nth-child(2){opacity:0}
    .menu-btn[aria-expanded="true"] .menu-ico span:nth-child(3){top:5px; transform:rotate(-45deg)}
    .mobile-panel{
      display:none;
      padding:10px 0 14px;
    }
    .mobile-panel .panel-links{
      display:grid; gap:8px;
      background:rgba(255,255,255,.75);
      border:1px solid rgba(18,20,26,.08);
      border-radius:16px;
      padding:12px;
      box-shadow:0 18px 40px rgba(18,20,26,.08);
    }
    .mobile-panel a{
      display:flex; align-items:center; justify-content:space-between;
      padding:12px 12px;
      border-radius:12px;
      border:1px solid rgba(18,20,26,.06);
      background:rgba(251,247,241,.5);
      font-size:14px;
      color:rgba(18,20,26,.90);
    }
    .chev{
      width:9px; height:9px;
      border-right:2px solid rgba(18,20,26,.45);
      border-bottom:2px solid rgba(18,20,26,.45);
      transform:rotate(-45deg);
    }

    .hero{
      padding:26px 0 14px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns: 1.15fr .85fr;
      gap:18px;
      align-items:stretch;
      margin-top:16px;
    }
    .hero-card{
      position:relative;
      background:linear-gradient(180deg, rgba(255,255,255,.78), rgba(255,255,255,.62));
      border:1px solid rgba(18,20,26,.08);
      border-radius:26px;
      box-shadow:0 26px 70px rgba(18,20,26,.08);
      overflow:hidden;
      padding:22px;
      min-height:420px;
    }
    .hero-card:before{
      content:"";
      position:absolute; inset:-2px;
      background:
        radial-gradient(600px 280px at 20% 10%, rgba(255,176,32,.25), transparent 60%),
        radial-gradient(540px 240px at 80% 15%, rgba(43,89,255,.22), transparent 60%),
        radial-gradient(520px 260px at 60% 85%, rgba(18,185,129,.22), transparent 60%),
        linear-gradient(135deg, rgba(255,92,138,.10), rgba(43,89,255,.08));
      opacity:.9;
      pointer-events:none;
    }
    .hero-inner{
      position:relative;
      display:flex;
      flex-direction:column;
      height:100%;
      gap:14px;
    }
    .kicker{
      display:flex; align-items:center; gap:10px;
      flex-wrap:wrap;
    }
    .pill{
      display:inline-flex; align-items:center; gap:10px;
      padding:10px 12px;
      border-radius:999px;
      border:1px solid rgba(18,20,26,.08);
      background:rgba(255,255,255,.64);
      color:rgba(18,20,26,.92);
      font-size:13px;
      box-shadow:0 14px 30px rgba(18,20,26,.05);
    }
    .pill b{font-weight:700}
    .pulse{
      width:10px; height:10px; border-radius:50%;
      background:linear-gradient(180deg, var(--brand2), var(--brand1));
      box-shadow:0 0 0 0 rgba(43,89,255,.35);
      animation:pulse 2.1s infinite;
    }
    @keyframes pulse{
      0%{box-shadow:0 0 0 0 rgba(43,89,255,.30)}
      60%{box-shadow:0 0 0 14px rgba(43,89,255,0)}
      100%{box-shadow:0 0 0 0 rgba(43,89,255,0)}
    }
    h1{
      margin:0;
      font-size:34px;
      line-height:1.18;
      letter-spacing:-.4px;
      color:var(--heroText);
    }
    .hero-sub{
      margin:0;
      font-size:15px;
      color:rgba(18,20,26,.70);
      max-width:60ch;
    }
    .hero-actions{
      display:flex; flex-wrap:wrap;
      gap:12px;
      align-items:center;
      margin-top:6px;
    }
    .btn-arrow{
      width:14px; height:14px;
      border-right:2px solid rgba(11,18,32,.55);
      border-top:2px solid rgba(11,18,32,.55);
      transform:rotate(45deg);
    }
    .hero-meta{
      display:grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap:12px;
      margin-top:auto;
    }
    .meta-box{
      background:rgba(255,255,255,.72);
      border:1px solid rgba(18,20,26,.08);
      border-radius:16px;
      padding:12px;
      transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
      will-change:transform;
    }
    .meta-box:hover{
      transform:translateY(-3px);
      box-shadow:0 18px 42px rgba(18,20,26,.10);
      border-color:rgba(43,89,255,.22);
    }
    .meta-top{
      display:flex; align-items:center; gap:10px;
      margin-bottom:8px;
    }
    .mini-icon{
      width:34px; height:34px; border-radius:12px;
      background:linear-gradient(135deg, rgba(43,89,255,.18), rgba(18,185,129,.16), rgba(255,92,138,.12));
      border:1px solid rgba(18,20,26,.08);
      display:flex; align-items:center; justify-content:center;
      color:rgba(11,18,32,.88);
      font-weight:800;
      letter-spacing:-.3px;
      box-shadow:0 18px 30px rgba(18,20,26,.06);
    }
    .meta-box b{font-size:16px}
    .meta-box p{margin:0; font-size:12.5px; color:rgba(18,20,26,.66); line-height:1.45}

    .hero-side{
      border-radius:26px;
      border:1px solid rgba(18,20,26,.08);
      background:linear-gradient(180deg, rgba(255,255,255,.78), rgba(255,255,255,.60));
      box-shadow:0 26px 70px rgba(18,20,26,.06);
      padding:18px;
      display:flex; flex-direction:column; gap:14px;
      overflow:hidden;
      position:relative;
      min-height:420px;
    }
    .hero-side:before{
      content:"";
      position:absolute; inset:-2px;
      background:
        radial-gradient(420px 260px at 15% 10%, rgba(255,92,138,.20), transparent 60%),
        radial-gradient(430px 270px at 85% 40%, rgba(43,89,255,.20), transparent 60%),
        radial-gradient(420px 260px at 40% 90%, rgba(18,185,129,.20), transparent 60%);
      opacity:.9;
      pointer-events:none;
    }
    .hero-side-inner{position:relative; display:flex; flex-direction:column; height:100%; gap:14px}
    .side-title{
      margin:0;
      font-size:16px;
      letter-spacing:.2px;
      color:rgba(18,20,26,.92);
    }
    .side-list{
      display:grid; gap:10px;
      margin-top:6px;
    }
    .side-item{
      background:rgba(255,255,255,.72);
      border:1px solid rgba(18,20,26,.08);
      border-radius:16px;
      padding:12px;
      display:flex; gap:12px; align-items:flex-start;
      transition:transform .25s ease, box-shadow .25s ease;
      cursor:pointer;
    }
    .side-item:hover{
      transform:translateY(-2px);
      box-shadow:0 18px 40px rgba(18,20,26,.08);
    }
    .step-num{
      width:34px; height:34px; border-radius:12px;
      background:rgba(18,20,26,.06);
      border:1px solid rgba(18,20,26,.08);
      display:flex; align-items:center; justify-content:center;
      font-weight:800; color:rgba(18,20,26,.88);
      flex:0 0 auto;
    }
    .side-item b{font-size:14px}
    .side-item p{margin:2px 0 0; font-size:12.5px; color:rgba(18,20,26,.68); line-height:1.45}
    .side-bottom{
      margin-top:auto;
      padding-top:6px;
    }
    .quick-form{
      background:rgba(255,255,255,.72);
      border:1px solid rgba(18,20,26,.08);
      border-radius:18px;
      padding:12px;
    }
    .quick-row{display:flex; gap:10px; align-items:center; flex-wrap:wrap}
    .quick-row label{font-size:12.5px; color:rgba(18,20,26,.70)}
    .seg{
      display:flex; gap:8px; flex-wrap:wrap;
      margin-left:auto;
    }
    .seg button{
      border:1px solid rgba(18,20,26,.10);
      background:rgba(255,255,255,.85);
      border-radius:999px;
      padding:8px 10px;
      font-size:12.5px;
      cursor:pointer;
      transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease, background .2s ease;
    }
    .seg button:hover{transform:translateY(-1px); box-shadow:0 12px 24px rgba(18,20,26,.08)}
    .seg button[aria-pressed="true"]{
      border-color:rgba(43,89,255,.35);
      background:linear-gradient(135deg, rgba(43,89,255,.15), rgba(18,185,129,.12));
    }
    .quick-hint{
      margin:10px 0 0;
      font-size:12.8px;
      color:rgba(18,20,26,.72);
      line-height:1.45;
    }

    main{padding:10px 0 30px}
    section{padding:26px 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:-.2px;
    }
    .section-head p{
      margin:0;
      color:rgba(18,20,26,.66);
      font-size:13.5px;
      max-width:60ch;
      line-height:1.5;
    }
    .divider{
      height:1px; background:rgba(18,20,26,.08);
      margin:0;
      border:0;
    }

    .cards-3{
      display:grid; grid-template-columns:repeat(3, minmax(0, 1fr));
      gap:12px;
    }
    .card{
      background:rgba(255,255,255,.74);
      border:1px solid rgba(18,20,26,.08);
      border-radius:18px;
      padding:16px;
      box-shadow:0 18px 40px rgba(18,20,26,.05);
      transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
    }
    .card:hover{
      transform:translateY(-3px);
      box-shadow:0 26px 70px rgba(18,20,26,.08);
      border-color:rgba(43,89,255,.20);
    }
    .card h3{margin:0 0 8px; font-size:15px}
    .card p{margin:0; color:rgba(18,20,26,.66); font-size:13.2px; line-height:1.55}
    .badge-row{display:flex; flex-wrap:wrap; gap:8px; margin-top:10px}
    .chip{
      display:inline-flex; align-items:center; gap:8px;
      padding:8px 10px; border-radius:999px;
      background:var(--chip);
      border:1px solid rgba(18,20,26,.08);
      font-size:12.5px;
      color:rgba(18,20,26,.78);
    }
    .chip i{
      width:8px; height:8px; border-radius:50%;
      background:linear-gradient(180deg, rgba(43,89,255,.85), rgba(255,92,138,.85));
      display:inline-block;
    }

    .two-col{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:14px;
      align-items:start;
    }
    .list{
      display:grid; gap:10px;
    }
    .li{
      display:flex; gap:12px; align-items:flex-start;
      padding:14px;
      border-radius:18px;
      background:rgba(255,255,255,.74);
      border:1px solid rgba(18,20,26,.08);
      box-shadow:0 18px 40px rgba(18,20,26,.05);
      transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
    }
    .li:hover{transform:translateY(-2px); box-shadow:0 26px 70px rgba(18,20,26,.08); border-color:rgba(43,89,255,.20)}
    .li .dot{
      width:36px; height:36px; border-radius:14px;
      border:1px solid rgba(18,20,26,.08);
      background:linear-gradient(135deg, rgba(43,89,255,.16), rgba(18,185,129,.14) 50%, rgba(255,92,138,.10));
      display:flex; align-items:center; justify-content:center;
      font-weight:900;
      flex:0 0 auto;
    }
    .li b{display:block; font-size:14px; margin-top:2px}
    .li span{display:block; margin-top:4px; color:rgba(18,20,26,.66); font-size:13.2px; line-height:1.5}

    .steps{
      display:grid; grid-template-columns:repeat(4, minmax(0, 1fr));
      gap:12px;
    }
    .step-card{
      background:rgba(255,255,255,.74);
      border:1px solid rgba(18,20,26,.08);
      border-radius:18px;
      padding:14px;
      box-shadow:0 18px 40px rgba(18,20,26,.05);
      position:relative;
      overflow:hidden;
    }
    .step-card:after{
      content:"";
      position:absolute; inset:auto -30px -30px auto;
      width:120px; height:120px; border-radius:50%;
      background:radial-gradient(circle at 30% 30%, rgba(43,89,255,.22), rgba(255,92,138,.10) 55%, transparent 70%);
      transform:rotate(18deg);
      pointer-events:none;
    }
    .step-head{
      display:flex; align-items:center; gap:10px; margin-bottom:8px;
      position:relative;
    }
    .step-head .num{
      width:38px; height:38px;
      border-radius:14px;
      border:1px solid rgba(18,20,26,.10);
      background:rgba(18,20,26,.05);
      display:flex; align-items:center; justify-content:center;
      font-weight:900;
      flex:0 0 auto;
    }
    .step-card h3{margin:0; font-size:14.5px}
    .step-card p{margin:0; color:rgba(18,20,26,.66); font-size:13.2px; line-height:1.55; position:relative}

    .compare{
      background:linear-gradient(180deg, rgba(255,255,255,.75), rgba(255,255,255,.62));
      border:1px solid rgba(18,20,26,.08);
      border-radius:24px;
      box-shadow:0 26px 70px rgba(18,20,26,.06);
      overflow:hidden;
    }
    .compare-top{
      padding:18px 18px 10px;
      display:flex; align-items:flex-start; justify-content:space-between; gap:14px; flex-wrap:wrap;
    }
    .rating{
      display:flex; align-items:center; gap:12px;
      padding:12px 14px;
      border-radius:18px;
      border:1px solid rgba(18,20,26,.08);
      background:rgba(255,255,255,.72);
    }
    .stars{
      display:flex; gap:4px;
      font-size:14px;
      color:rgba(255,176,32,.95);
      letter-spacing:.5px;
    }
    .rating b{font-size:18px}
    .rating p{margin:2px 0 0; color:rgba(18,20,26,.64); font-size:12.8px}
    table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      font-size:13.2px;
      color:rgba(18,20,26,.86);
    }
    .table-wrap{overflow:auto}
    th, td{
      padding:12px 12px;
      border-bottom:1px solid rgba(18,20,26,.08);
      vertical-align:top;
      text-align:left;
      white-space:nowrap;
    }
    th{
      position:sticky; top:0;
      background:rgba(251,247,241,.94);
      z-index:1;
      font-weight:800;
      color:rgba(18,20,26,.92);
      border-bottom:1px solid rgba(18,20,26,.10);
    }
    tr:last-child td{border-bottom:none}
    .tag-good{
      display:inline-flex; align-items:center; gap:8px;
      padding:7px 10px; border-radius:999px;
      background:rgba(18,185,129,.10);
      border:1px solid rgba(18,185,129,.22);
      color:rgba(10,66,47,.92);
      font-weight:700;
    }
    .tag-mid{
      display:inline-flex; align-items:center; gap:8px;
      padding:7px 10px; border-radius:999px;
      background:rgba(255,176,32,.12);
      border:1px solid rgba(255,176,32,.26);
      color:rgba(86,53,0,.92);
      font-weight:700;
    }
    .tag-less{
      display:inline-flex; align-items:center; gap:8px;
      padding:7px 10px; border-radius:999px;
      background:rgba(18,20,26,.06);
      border:1px solid rgba(18,20,26,.10);
      color:rgba(18,20,26,.78);
      font-weight:700;
    }

    .pricing-row{
      display:grid; grid-template-columns: 1fr 1fr;
      gap:12px;
      align-items:stretch;
    }
    .price-card{
      background:rgba(255,255,255,.74);
      border:1px solid rgba(18,20,26,.08);
      border-radius:20px;
      padding:16px;
      box-shadow:0 18px 40px rgba(18,20,26,.05);
    }
    .price-card h3{margin:0 0 6px; font-size:15px}
    .price-card p{margin:0; color:rgba(18,20,26,.66); font-size:13.2px; line-height:1.55}
    .price-list{margin-top:12px; display:grid; gap:10px}
    .price-line{
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
      padding:12px;
      border-radius:16px;
      border:1px solid rgba(18,20,26,.08);
      background:rgba(251,247,241,.55);
    }
    .price-line b{font-size:13.8px}
    .price-line span{display:block; font-size:12.6px; color:rgba(18,20,26,.64); margin-top:2px; line-height:1.35}
    .price-line em{
      font-style:normal;
      font-weight:900;
      color:rgba(18,20,26,.90);
      padding:7px 10px;
      border-radius:999px;
      border:1px solid rgba(43,89,255,.22);
      background:linear-gradient(135deg, rgba(43,89,255,.14), rgba(18,185,129,.12));
      white-space:nowrap;
    }

    .faq{
      background:rgba(255,255,255,.68);
      border:1px solid rgba(18,20,26,.08);
      border-radius:24px;
      box-shadow:0 26px 70px rgba(18,20,26,.06);
      overflow:hidden;
    }
    .faq .faq-item{
      border-top:1px solid rgba(18,20,26,.08);
      padding:0;
    }
    .faq .faq-item:first-child{border-top:none}
    .faq button{
      width:100%;
      border:0;
      background:transparent;
      text-align:left;
      padding:16px 16px;
      cursor:pointer;
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
      font-size:14.2px;
      color:rgba(18,20,26,.92);
    }
    .faq button:focus{outline:none; box-shadow:inset 0 0 0 3px var(--focus)}
    .faq .q{
      display:flex; gap:10px; align-items:flex-start;
    }
    .q .q-ico{
      width:28px; height:28px; border-radius:12px;
      background:rgba(18,20,26,.06);
      border:1px solid rgba(18,20,26,.10);
      display:flex; align-items:center; justify-content:center;
      font-weight:900;
      flex:0 0 auto;
    }
    .faq .caret{
      width:10px; height:10px;
      border-right:2px solid rgba(18,20,26,.45);
      border-bottom:2px solid rgba(18,20,26,.45);
      transform:rotate(45deg);
      margin-top:6px;
      transition:transform .22s ease;
      flex:0 0 auto;
    }
    .faq-item[aria-expanded="true"] .caret{transform:rotate(-135deg)}
    .faq .a{
      max-height:0;
      overflow:hidden;
      transition:max-height .28s ease;
      padding:0 16px;
    }
    .faq-item[aria-expanded="true"] .a{max-height:240px; padding-bottom:16px}
    .faq .a p{
      margin:0;
      color:rgba(18,20,26,.68);
      font-size:13.5px;
      line-height:1.7;
    }

    .reviews-grid{
      display:grid; grid-template-columns:repeat(3, minmax(0, 1fr));
      gap:12px;
    }
    .review{
      background:rgba(255,255,255,.74);
      border:1px solid rgba(18,20,26,.08);
      border-radius:20px;
      padding:16px;
      box-shadow:0 18px 40px rgba(18,20,26,.05);
      transition:transform .25s ease, box-shadow .25s ease;
    }
    .review:hover{transform:translateY(-2px); box-shadow:0 26px 70px rgba(18,20,26,.08)}
    .review-top{display:flex; align-items:center; justify-content:space-between; gap:12px}
    .avatar{
      width:44px; height:44px;
      border-radius:16px;
      border:1px solid rgba(18,20,26,.10);
      background:linear-gradient(135deg, rgba(43,89,255,.16), rgba(18,185,129,.12), rgba(255,92,138,.10));
      display:flex; align-items:center; justify-content:center;
      font-weight:900;
      color:rgba(18,20,26,.90);
    }
    .review .who b{display:block; font-size:14px}
    .review .who span{display:block; margin-top:2px; font-size:12.5px; color:rgba(18,20,26,.62)}
    .review .quote{
      margin:12px 0 0;
      color:rgba(18,20,26,.70);
      font-size:13.2px;
      line-height:1.65;
    }

    .cases{
      display:grid; grid-template-columns:repeat(3, minmax(0, 1fr));
      gap:12px;
    }
    .case{
      background:rgba(255,255,255,.74);
      border:1px solid rgba(18,20,26,.08);
      border-radius:20px;
      overflow:hidden;
      box-shadow:0 18px 40px rgba(18,20,26,.05);
      transition:transform .25s ease, box-shadow .25s ease;
      display:flex; flex-direction:column;
    }
    .case .thumb{
      padding:14px;
      background:
        linear-gradient(135deg, rgba(43,89,255,.14), rgba(18,185,129,.10) 45%, rgba(255,92,138,.10));
      border-bottom:1px solid rgba(18,20,26,.08);
    }
    .thumb-grid{
      display:grid; grid-template-columns: 1fr 1fr; gap:10px;
    }
    .imgframe{
      border-radius:14px;
      border:1px solid rgba(18,20,26,.10);
      background:rgba(255,255,255,.72);
      padding:8px;
      display:flex; align-items:center; justify-content:center;
    }
    .imgframe img{
      width:100%; height:auto; max-height:92px; object-fit:contain;
      border-radius:10px;
    }
    .case .body{
      padding:14px;
      display:flex; flex-direction:column; gap:10px;
      flex:1;
    }
    .case h3{margin:0; font-size:14.5px}
    .case p{margin:0; color:rgba(18,20,26,.66); font-size:13.2px; line-height:1.6}
    .case .actions{
      margin-top:auto;
      display:flex; gap:10px; align-items:center; justify-content:space-between;
    }
    .mini-link{
      display:inline-flex; align-items:center; gap:10px;
      padding:10px 12px;
      border-radius:12px;
      border:1px solid rgba(18,20,26,.10);
      background:rgba(255,255,255,.78);
      font-size:13.5px;
      color:rgba(18,20,26,.90);
      transition:transform .2s ease, box-shadow .2s ease;
    }
    .mini-link:hover{transform:translateY(-1px); box-shadow:0 14px 30px rgba(18,20,26,.10)}
    .mini-link .arrow{
      width:10px; height:10px;
      border-right:2px solid rgba(18,20,26,.55);
      border-top:2px solid rgba(18,20,26,.55);
      transform:rotate(45deg);
    }

    .article-grid{
      display:grid; grid-template-columns: 1.1fr .9fr;
      gap:12px;
      align-items:start;
    }
    .article-list{
      background:rgba(255,255,255,.74);
      border:1px solid rgba(18,20,26,.08);
      border-radius:24px;
      box-shadow:0 26px 70px rgba(18,20,26,.06);
      padding:16px;
    }
    .article-list h3{margin:0 0 10px; font-size:15px}
    .article-items{display:grid; gap:10px}
    .article-item{
      padding:12px;
      border-radius:18px;
      border:1px solid rgba(18,20,26,.08);
      background:rgba(251,247,241,.52);
      transition:transform .25s ease, box-shadow .25s ease;
    }
    .article-item:hover{transform:translateY(-2px); box-shadow:0 26px 70px rgba(18,20,26,.08)}
    .article-item a{
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
    }
    .article-item b{font-size:14px}
    .article-item span{display:block; margin-top:4px; font-size:12.7px; color:rgba(18,20,26,.64); line-height:1.35}
    .article-item .go{
      flex:0 0 auto;
      margin-top:2px;
      width:34px; height:34px;
      border-radius:14px;
      border:1px solid rgba(18,20,26,.10);
      background:rgba(255,255,255,.75);
      display:flex; align-items:center; justify-content:center;
      transition:transform .2s ease;
    }
    .article-item:hover .go{transform:translateY(-1px)}
    .article-item .go i{
      width:10px; height:10px;
      border-right:2px solid rgba(18,20,26,.55);
      border-top:2px solid rgba(18,20,26,.55);
      transform:rotate(45deg);
      display:block;
    }
    .side-panel{
      background:rgba(255,255,255,.74);
      border:1px solid rgba(18,20,26,.08);
      border-radius:24px;
      box-shadow:0 26px 70px rgba(18,20,26,.06);
      padding:16px;
    }
    .side-panel h3{margin:0 0 10px; font-size:15px}
    .tag-cloud{
      display:flex; flex-wrap:wrap; gap:10px;
      margin-top:8px;
    }
    .tag-cloud a{
      padding:10px 12px;
      border-radius:999px;
      border:1px solid rgba(18,20,26,.10);
      background:rgba(251,247,241,.55);
      font-size:13px;
      color:rgba(18,20,26,.88);
      transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .tag-cloud a:hover{transform:translateY(-2px); box-shadow:0 26px 70px rgba(18,20,26,.08); border-color:rgba(43,89,255,.20)}
    .timeline{
      margin-top:12px;
      display:grid; gap:12px;
    }
    .titem{
      display:flex; gap:12px; align-items:flex-start;
      padding:12px;
      border-radius:18px;
      border:1px solid rgba(18,20,26,.08);
      background:rgba(251,247,241,.52);
    }
    .titem .tdate{
      width:88px;
      flex:0 0 auto;
      font-weight:900;
      font-size:13.2px;
      color:rgba(18,20,26,.90);
      padding-top:2px;
    }
    .titem b{display:block; font-size:14px}
    .titem span{display:block; margin-top:4px; font-size:12.8px; color:rgba(18,20,26,.64); line-height:1.35}

    form{
      background:rgba(255,255,255,.74);
      border:1px solid rgba(18,20,26,.08);
      border-radius:24px;
      box-shadow:0 26px 70px rgba(18,20,26,.06);
      padding:16px;
    }
    form h3{margin:0 0 6px; font-size:15px}
    form p{margin:0 0 14px; color:rgba(18,20,26,.66); font-size:13.2px; line-height:1.6}
    .form-grid{
      display:grid; grid-template-columns: 1fr 1fr; gap:12px;
    }
    .field label{
      display:block;
      font-size:12.8px;
      color:rgba(18,20,26,.72);
      margin:0 0 6px;
      font-weight:700;
    }
    .field input, .field select, .field textarea{
      width:100%;
      padding:12px 12px;
      border-radius:14px;
      border:1px solid rgba(18,20,26,.12);
      background:rgba(255,255,255,.85);
      color:rgba(18,20,26,.92);
      font-size:14px;
      transition:box-shadow .2s ease, border-color .2s ease;
    }
    .field textarea{min-height:120px; resize:vertical}
    .field input:focus, .field select:focus, .field textarea:focus{
      outline:none;
      border-color:rgba(43,89,255,.30);
      box-shadow:0 0 0 4px var(--focus);
    }
    .form-grid .full{grid-column:1 / -1}
    .form-actions{
      display:flex; align-items:center; justify-content:space-between; gap:12px; flex-wrap:wrap;
      margin-top:12px;
    }
    .note{
      color:rgba(18,20,26,.62);
      font-size:12.8px;
      line-height:1.4;
      max-width:52ch;
    }

    footer{
      padding:18px 0 26px;
      border-top:1px solid rgba(18,20,26,.08);
      background:linear-gradient(180deg, rgba(251,247,241,.55), rgba(255,255,255,.75));
    }
    .footer-grid{
      display:grid; grid-template-columns: 1.2fr .8fr;
      gap:14px; align-items:start;
    }
    .footer-card{
      background:rgba(255,255,255,.70);
      border:1px solid rgba(18,20,26,.08);
      border-radius:24px;
      padding:16px;
      box-shadow:0 26px 70px rgba(18,20,26,.06);
    }
    .footer-card h3{margin:0 0 10px; font-size:15px}
    .footer-links{
      display:flex; flex-wrap:wrap; gap:10px;
    }
    .footer-links a{
      padding:9px 12px;
      border-radius:999px;
      border:1px solid rgba(18,20,26,.10);
      background:rgba(251,247,241,.55);
      font-size:13px;
      color:rgba(18,20,26,.88);
      transition:transform .2s ease, box-shadow .2s ease;
    }
    .footer-links a:hover{transform:translateY(-2px); box-shadow:0 26px 70px rgba(18,20,26,.08)}
    .contact-row{
      display:grid; gap:10px;
    }
    .contact-item{
      display:flex; gap:12px; align-items:flex-start; justify-content:space-between;
      padding:12px;
      border-radius:18px;
      border:1px solid rgba(18,20,26,.08);
      background:rgba(251,247,241,.52);
    }
    .contact-item b{display:block; font-size:13.8px}
    .contact-item span{display:block; margin-top:4px; font-size:12.8px; color:rgba(18,20,26,.64); line-height:1.35}
    .kefu{
      display:flex; align-items:center; gap:12px;
    }
    .kefu img{
      width:64px; height:64px; border-radius:16px;
      border:1px solid rgba(18,20,26,.10);
      background:#fff;
      object-fit:cover;
    }
    .copyright{
      margin-top:14px;
      display:flex; justify-content:space-between; align-items:center; gap:12px; flex-wrap:wrap;
      color:rgba(18,20,26,.60);
      font-size:12.6px;
    }

    .float-kefu{
      position:fixed;
      right:14px;
      bottom:14px;
      z-index:80;
      display:flex; flex-direction:column; gap:10px;
      align-items:flex-end;
    }
    .float-tip{
      display:none;
      padding:10px 12px;
      border-radius:16px;
      border:1px solid rgba(18,20,26,.10);
      background:rgba(255,255,255,.86);
      box-shadow:0 22px 60px rgba(18,20,26,.14);
      font-size:12.8px;
      color:rgba(18,20,26,.72);
      max-width:200px;
    }
    .float-kefu button{
      width:52px; height:52px;
      border-radius:18px;
      border:1px solid rgba(18,20,26,.10);
      background:linear-gradient(135deg, rgba(43,89,255,.18), rgba(18,185,129,.14), rgba(255,92,138,.12));
      cursor:pointer;
      box-shadow:0 18px 44px rgba(18,20,26,.12);
      transition:transform .2s ease, box-shadow .2s ease;
      display:flex; align-items:center; justify-content:center;
    }
    .float-kefu button:hover{transform:translateY(-2px); box-shadow:0 26px 70px rgba(18,20,26,.16)}
    .float-kefu button:focus{outline:none; box-shadow:0 0 0 4px var(--focus)}
    .float-kefu svg{width:22px; height:22px; fill:rgba(18,20,26,.86)}
    .backTop{
      width:52px; height:52px;
      border-radius:18px;
      border:1px solid rgba(18,20,26,.10);
      background:rgba(255,255,255,.86);
      cursor:pointer;
      box-shadow:0 18px 44px rgba(18,20,26,.12);
      transition:transform .2s ease, opacity .2s ease, box-shadow .2s ease;
      display:flex; align-items:center; justify-content:center;
      opacity:0;
      pointer-events:none;
    }
    .backTop.show{opacity:1; pointer-events:auto}
    .backTop:hover{transform:translateY(-2px); box-shadow:0 26px 70px rgba(18,20,26,.16)}
    .backTop svg{width:20px; height:20px; fill:rgba(18,20,26,.86)}
    .toast{
      position:fixed;
      left:50%;
      transform:translateX(-50%);
      bottom:88px;
      z-index:90;
      background:rgba(18,20,26,.88);
      color:#fff;
      padding:10px 12px;
      border-radius:14px;
      font-size:13px;
      box-shadow:0 26px 70px rgba(18,20,26,.24);
      opacity:0;
      pointer-events:none;
      transition:opacity .2s ease, transform .2s ease;
    }
    .toast.show{
      opacity:1;
      transform:translateX(-50%) translateY(-4px);
    }

    .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-card, .hero-side{min-height:auto}
      .hero-meta{grid-template-columns: 1fr; }
      .cards-3{grid-template-columns:1fr}
      .steps{grid-template-columns:1fr 1fr}
      .reviews-grid{grid-template-columns:1fr}
      .cases{grid-template-columns:1fr}
      .article-grid{grid-template-columns:1fr}
      .two-col{grid-template-columns:1fr}
      .pricing-row{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
      .nav-links{display:none}
      .menu-btn{display:inline-flex; align-items:center; justify-content:center}
      .mobile-panel{display:block}
      .mobile-panel[data-open="false"]{display:none}
    }
    @media (prefers-reduced-motion: reduce){
      html{scroll-behavior:auto}
      .reveal{transition:none}
      .pulse{animation:none}
      .meta-box:hover, .card:hover, .li:hover, .side-item:hover, .review:hover, .case:hover, .article-item:hover{transform:none}
    }