:root{
      --bg:#fffaf2;
      --bg2:#ffffff;
      --card:#ffffff;
      --text:#141418;
      --muted:#5b5f6b;
      --line:rgba(20,20,24,.10);
      --shadow: 0 18px 50px rgba(19, 21, 28, .10);
      --shadow2: 0 10px 30px rgba(19, 21, 28, .10);
      --brand:#2f55ff;
      --brand2:#ff4fd8;
      --brand3:#00b3ff;
      --brand4:#28d17c;
      --warn:#ffb020;
      --danger:#ff3b3b;
      --radius:18px;
      --radius2:26px;
      --container:1120px;
      --pad: 18px;
      --focus: rgba(47,85,255,.26);
    }

    *{ box-sizing:border-box; }
    html{ scroll-behavior:smooth; }
    body{
      margin:0;
      font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "PingFang SC", "Hiragino Sans GB","Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
      color:var(--text);
      background:
        radial-gradient(1100px 700px at 12% -10%, rgba(255,79,216,.18), transparent 55%),
        radial-gradient(900px 600px at 85% 0%, rgba(47,85,255,.20), transparent 55%),
        radial-gradient(1100px 900px at 10% 60%, rgba(0,179,255,.14), transparent 60%),
        linear-gradient(180deg, var(--bg), var(--bg2) 60%);
      overflow-x:hidden;
    }

    a{ color:inherit; text-decoration:none; }
    button, input, select, textarea{ font:inherit; }
    .container{
      width:min(var(--container), calc(100% - 2*var(--pad)));
      margin:0 auto;
    }

    .skip{
      position:absolute; left:-9999px; top:auto; width:1px; height:1px; overflow:hidden;
    }
    .skip:focus{
      left: 14px; top: 14px; width:auto; height:auto; background:#fff; padding:10px 12px; border:1px solid var(--line); border-radius:12px; z-index:9999;
      box-shadow: var(--shadow2);
    }

    header{
      position:sticky; top:0; z-index:60;
      backdrop-filter: blur(10px);
      background: rgba(255,255,255,.72);
      border-bottom: 1px solid rgba(20,20,24,.08);
    }
    .nav-wrap{
      display:flex; align-items:center; justify-content:space-between;
      padding: 14px 0;
      gap: 14px;
    }
    .brand{
      display:flex; align-items:center; gap:12px; min-width: 220px;
    }
    .ai-page-logo{
      width:38px; height:38px; object-fit:contain;
      filter: saturate(1.05);
    }
    .brand-title{
      display:flex; flex-direction:column; line-height:1.15;
    }
    .brand-title strong{ font-size:14px; letter-spacing:.2px; }
    .brand-title span{ font-size:12px; color:var(--muted); }

    .nav-actions{
      display:flex; align-items:center; justify-content:flex-end; gap:12px;
    }

    .nav-links{
      display:flex; align-items:center; gap: 14px;
      padding: 8px 0;
      flex-wrap: nowrap;
      overflow:hidden;
      max-width: 720px;
    }
    .nav-links a{
      font-size:13px;
      color: rgba(20,20,24,.82);
      padding: 10px 10px;
      border-radius: 12px;
      transition: background .2s ease, transform .2s ease, color .2s ease;
      white-space:nowrap;
    }
    .nav-links a:hover{
      background: rgba(47,85,255,.08);
      color: rgba(20,20,24,.98);
      transform: translateY(-1px);
    }

    .btn{
      display:inline-flex; align-items:center; justify-content:center; gap:10px;
      border:1px solid rgba(20,20,24,.12);
      background:#fff;
      color: rgba(20,20,24,.92);
      padding: 10px 14px;
      border-radius: 14px;
      box-shadow: 0 8px 20px rgba(15,20,30,.06);
      transition: transform .15s ease, box-shadow .15s ease, background .2s ease, border-color .2s ease;
      cursor:pointer;
      user-select:none;
    }
    .btn:focus{ outline:none; box-shadow: 0 0 0 4px var(--focus), 0 8px 20px rgba(15,20,30,.06); }
    .btn:hover{ transform: translateY(-1px); box-shadow: 0 12px 28px rgba(15,20,30,.10); }
    .btn-primary{
      border-color: rgba(47,85,255,.24);
      background: linear-gradient(135deg, rgba(47,85,255,.98), rgba(255,79,216,.92));
      color:#fff;
      box-shadow: 0 18px 45px rgba(47,85,255,.22);
    }
    .btn-primary:hover{
      box-shadow: 0 22px 55px rgba(47,85,255,.26);
    }

    .btn-ghost{
      background: rgba(255,255,255,.7);
    }

    .icon-dot{
      width:10px; height:10px; border-radius: 999px;
      background: radial-gradient(circle at 30% 30%, #fff, rgba(255,255,255,.35) 30%, rgba(255,255,255,0) 60%),
        linear-gradient(135deg, var(--brand), var(--brand2));
      box-shadow: 0 0 0 4px rgba(47,85,255,.14);
    }

    .burger{
      display:none;
      width: 44px; height: 44px;
      border-radius: 14px;
      border:1px solid rgba(20,20,24,.12);
      background:#fff;
      cursor:pointer;
      align-items:center; justify-content:center;
      transition: transform .15s ease, box-shadow .15s ease;
      box-shadow: 0 8px 20px rgba(15,20,30,.06);
    }
    .burger:hover{ transform: translateY(-1px); box-shadow: 0 12px 28px rgba(15,20,30,.10); }
    .burger span{
      display:block;
      width:18px; height:2px; background: rgba(20,20,24,.88);
      position:relative;
    }
    .burger span:before, .burger span:after{
      content:"";
      position:absolute; left:0; width:18px; height:2px; background: rgba(20,20,24,.88);
      transition: transform .2s ease, top .2s ease, opacity .2s ease;
    }
    .burger span:before{ top:-6px; }
    .burger span:after{ top:6px; }
    .burger[aria-expanded="true"] span{ background: transparent; }
    .burger[aria-expanded="true"] span:before{ top:0; transform: rotate(45deg); }
    .burger[aria-expanded="true"] span:after{ top:0; transform: rotate(-45deg); }

    .mobile-panel{
      display:none;
      padding: 0 0 14px 0;
    }
    .mobile-links{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
      padding-top: 10px;
    }
    .mobile-links a{
      background: rgba(255,255,255,.72);
      border:1px solid rgba(20,20,24,.10);
      padding: 12px 10px;
      border-radius: 14px;
      font-size: 13px;
      color: rgba(20,20,24,.92);
      transition: transform .15s ease, box-shadow .15s ease, background .2s ease;
    }
    .mobile-links a:hover{ transform: translateY(-1px); box-shadow: 0 12px 26px rgba(15,20,30,.08); background: #fff; }

    .hero{
      padding: 26px 0 18px 0;
    }
    .hero-grid{
      display:grid;
      grid-template-columns: 1.2fr .8fr;
      gap: 18px;
      align-items: stretch;
    }
    .hero-left{
      border-radius: var(--radius2);
      border: 1px solid rgba(20,20,24,.10);
      background:
        radial-gradient(900px 320px at 14% 10%, rgba(255,79,216,.20), transparent 60%),
        radial-gradient(700px 320px at 70% 30%, rgba(47,85,255,.22), transparent 60%),
        linear-gradient(180deg, rgba(255,255,255,.78), rgba(255,255,255,.62));
      box-shadow: 0 18px 60px rgba(20,20,24,.08);
      overflow:hidden;
      position:relative;
      padding: 26px;
    }
    .hero-left:before{
      content:"";
      position:absolute; inset:-2px;
      background:
        radial-gradient(380px 140px at 10% 20%, rgba(0,179,255,.22), transparent 60%),
        radial-gradient(520px 220px at 70% 10%, rgba(255,176,32,.16), transparent 60%),
        radial-gradient(420px 220px at 90% 70%, rgba(40,209,124,.14), transparent 55%);
      opacity:.9;
      pointer-events:none;
    }
    .hero-left > *{ position:relative; z-index:2; }

    .pill-row{
      display:flex; flex-wrap:wrap; gap:10px; align-items:center;
      margin-bottom: 14px;
    }
    .pill{
      display:inline-flex; align-items:center; gap:8px;
      padding: 8px 10px;
      border-radius: 999px;
      border: 1px solid rgba(20,20,24,.10);
      background: rgba(255,255,255,.72);
      color: rgba(20,20,24,.88);
      font-size: 12px;
      white-space:nowrap;
    }
    .pill i{
      width: 8px; height: 8px; border-radius: 999px; background: linear-gradient(135deg, var(--brand), var(--brand2));
      box-shadow: 0 0 0 4px rgba(47,85,255,.14);
      display:inline-block;
    }

    h1{
      font-size: clamp(22px, 3.1vw, 38px);
      margin: 0 0 10px 0;
      letter-spacing: .2px;
    }
    .hero-sub{
      font-size: 15px;
      color: rgba(20,20,24,.78);
      line-height: 1.7;
      max-width: 62ch;
      margin: 0 0 16px 0;
    }
    .hero-ctas{
      display:flex; flex-wrap:wrap; gap:12px; align-items:center;
      margin-top: 8px;
    }
    .hero-meta{
      display:flex; flex-wrap:wrap; gap: 10px;
      margin-top: 14px;
    }
    .meta-chip{
      flex: 1 1 auto;
      min-width: 170px;
      padding: 12px 12px;
      border-radius: 16px;
      border: 1px solid rgba(20,20,24,.10);
      background: rgba(255,255,255,.72);
      display:flex; align-items:flex-start; gap: 10px;
      transition: transform .2s ease, background .2s ease;
    }
    .meta-chip:hover{
      transform: translateY(-2px);
      background: rgba(255,255,255,.90);
    }
    .meta-chip .m-icon{
      width:34px; height:34px; border-radius: 14px;
      display:flex; align-items:center; justify-content:center;
      border:1px solid rgba(20,20,24,.10);
      background: linear-gradient(135deg, rgba(47,85,255,.12), rgba(255,79,216,.10));
      flex: 0 0 auto;
    }
    .meta-chip .m-icon svg{ width:18px; height:18px; }
    .meta-chip b{ display:block; font-size: 13px; margin-bottom: 3px; }
    .meta-chip span{ display:block; font-size: 12px; color: var(--muted); line-height:1.45; }

    .hero-right{
      display:flex; flex-direction:column; gap: 12px;
    }
    .side-card{
      border-radius: var(--radius2);
      border:1px solid rgba(20,20,24,.10);
      background: rgba(255,255,255,.68);
      box-shadow: 0 18px 50px rgba(20,20,24,.06);
      overflow:hidden;
      padding: 16px;
    }
    .side-title{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      margin-bottom: 10px;
    }
    .side-title h2{
      margin:0; font-size:14px; letter-spacing:.2px;
    }
    .tag-strong{
      display:inline-flex; align-items:center; gap:8px;
      padding: 7px 10px;
      border-radius: 999px;
      background: linear-gradient(135deg, rgba(255,79,216,.14), rgba(47,85,255,.12));
      border:1px solid rgba(20,20,24,.10);
      font-size: 12px;
      color: rgba(20,20,24,.88);
      white-space:nowrap;
    }
    .spark{
      width: 10px; height: 10px; border-radius: 4px;
      background: linear-gradient(135deg, var(--brand2), var(--brand));
      transform: rotate(12deg);
      box-shadow: 0 0 0 4px rgba(255,79,216,.12);
    }

    .mini-grid{
      display:grid; grid-template-columns: 1fr 1fr; gap: 10px;
      margin-top: 6px;
    }
    .data-card{
      border-radius: 16px;
      border:1px solid rgba(20,20,24,.10);
      background: rgba(255,255,255,.80);
      padding: 12px 12px;
      transition: transform .2s ease, box-shadow .2s ease;
      min-height: 86px;
      display:flex; flex-direction:column; justify-content:space-between;
      cursor: default;
    }
    .data-card:hover{ transform: translateY(-2px); box-shadow: 0 18px 40px rgba(20,20,24,.08); }
    .data-card .k{
      font-size: 12px; color: var(--muted); margin-bottom: 6px;
      display:flex; align-items:center; gap:8px;
    }
    .badge{
      display:inline-flex; align-items:center; justify-content:center;
      width: 22px; height: 22px;
      border-radius: 10px;
      border:1px solid rgba(20,20,24,.10);
      background: linear-gradient(135deg, rgba(47,85,255,.10), rgba(0,179,255,.10));
    }
    .data-card .v{
      font-size: 18px; font-weight: 800;
      letter-spacing:.2px;
    }
    .data-card .s{
      font-size: 12px; color: rgba(20,20,24,.72);
      line-height:1.4;
    }

    .side-list{
      display:grid; gap: 10px;
      margin-top: 10px;
    }
    .side-list .li{
      display:flex; gap:10px; align-items:flex-start;
      padding: 10px 10px;
      border-radius: 16px;
      border:1px solid rgba(20,20,24,.10);
      background: rgba(255,255,255,.78);
      transition: transform .2s ease, background .2s ease;
    }
    .side-list .li:hover{ transform: translateY(-2px); background: #fff; }
    .li .dot{
      width: 10px; height: 10px; border-radius: 999px;
      margin-top: 5px;
      background: linear-gradient(135deg, var(--brand4), var(--brand3));
      box-shadow: 0 0 0 4px rgba(40,209,124,.12);
      flex: 0 0 auto;
    }
    .li b{ font-size: 13px; display:block; margin-bottom: 3px; }
    .li span{ font-size: 12px; color: var(--muted); line-height:1.45; display:block; }

    .section{
      padding: 26px 0;
    }
    .section-head{
      display:flex; align-items:flex-end; justify-content:space-between; gap: 14px;
      margin-bottom: 16px;
    }
    .section-head h2{
      margin:0;
      font-size: 20px;
      letter-spacing:.2px;
    }
    .section-head p{
      margin:0;
      color: var(--muted);
      font-size: 13px;
      line-height:1.6;
      max-width: 62ch;
    }

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

    .card{
      border-radius: var(--radius);
      border:1px solid rgba(20,20,24,.10);
      background: rgba(255,255,255,.72);
      box-shadow: 0 14px 40px rgba(20,20,24,.06);
      padding: 16px;
      position:relative;
      overflow:hidden;
    }
    .card:before{
      content:"";
      position:absolute; inset:-1px;
      background:
        radial-gradient(380px 160px at 20% -10%, rgba(255,79,216,.14), transparent 60%),
        radial-gradient(280px 140px at 90% 10%, rgba(47,85,255,.12), transparent 60%),
        radial-gradient(320px 180px at 10% 90%, rgba(0,179,255,.10), transparent 60%);
      opacity:.85;
      pointer-events:none;
    }
    .card > *{ position:relative; z-index:1; }

    .card h3{
      margin: 0 0 8px 0;
      font-size: 15px;
      letter-spacing:.2px;
    }
    .card p{
      margin:0;
      color: rgba(20,20,24,.75);
      font-size: 13px;
      line-height:1.7;
    }
    .card .mini{
      margin-top: 12px;
      display:flex; flex-wrap:wrap; gap:8px;
    }
    .chip{
      display:inline-flex; align-items:center; gap:8px;
      border-radius: 999px;
      padding: 8px 10px;
      border: 1px solid rgba(20,20,24,.10);
      background: rgba(255,255,255,.78);
      font-size: 12px;
      color: rgba(20,20,24,.88);
      white-space:nowrap;
    }
    .chip i{
      width: 8px; height: 8px; border-radius: 999px;
      background: linear-gradient(135deg, var(--brand), var(--brand2));
      box-shadow: 0 0 0 4px rgba(47,85,255,.12);
      display:inline-block;
    }

    .steps{
      display:grid; grid-template-columns: repeat(4, 1fr);
      gap: 12px;
    }
    .step{
      border-radius: var(--radius);
      border:1px solid rgba(20,20,24,.10);
      background: rgba(255,255,255,.74);
      padding: 14px;
      position:relative;
      overflow:hidden;
      transition: transform .2s ease, box-shadow .2s ease;
      min-height: 156px;
    }
    .step:hover{ transform: translateY(-2px); box-shadow: 0 18px 45px rgba(20,20,24,.08); }
    .step:after{
      content:"";
      position:absolute; right:-40px; top:-40px;
      width: 110px; height:110px; border-radius: 999px;
      background: radial-gradient(circle at 30% 30%, rgba(255,255,255,.9), rgba(255,255,255,0) 55%),
        linear-gradient(135deg, rgba(255,79,216,.26), rgba(47,85,255,.20));
      opacity:.85;
      transform: rotate(20deg);
      pointer-events:none;
    }
    .step > *{ position:relative; z-index:1; }
    .step .num{
      width: 42px; height:42px;
      border-radius: 16px;
      border:1px solid rgba(20,20,24,.10);
      background: rgba(255,255,255,.85);
      display:flex; align-items:center; justify-content:center;
      font-weight: 900;
      margin-bottom: 10px;
      box-shadow: 0 10px 26px rgba(20,20,24,.06);
    }
    .step b{ display:block; font-size: 14px; margin-bottom: 6px; }
    .step span{ display:block; font-size: 13px; color: rgba(20,20,24,.74); line-height:1.7; }

    .table-wrap{
      border-radius: var(--radius2);
      border:1px solid rgba(20,20,24,.10);
      background: rgba(255,255,255,.72);
      box-shadow: 0 18px 50px rgba(20,20,24,.06);
      overflow:hidden;
    }
    .table-top{
      padding: 14px 16px;
      border-bottom: 1px solid rgba(20,20,24,.10);
      display:flex; align-items:center; justify-content:space-between; gap:12px; flex-wrap:wrap;
    }
    .table-top b{ font-size: 14px; }
    .table-top span{ font-size: 12px; color: var(--muted); }
    .table-scroller{ overflow:auto; }
    table{
      width:100%;
      border-collapse: collapse;
      min-width: 860px;
    }
    th, td{
      padding: 14px 12px;
      border-bottom: 1px solid rgba(20,20,24,.08);
      vertical-align: top;
      text-align:left;
      font-size: 13px;
    }
    th{
      background: rgba(255,255,255,.86);
      color: rgba(20,20,24,.88);
      font-weight: 800;
    }
    td .good{
      display:inline-flex; align-items:center; gap:8px;
      color: rgba(20,20,24,.9);
      font-weight: 700;
    }
    .tick{
      width: 18px; height: 18px; border-radius: 8px;
      background: linear-gradient(135deg, rgba(40,209,124,.20), rgba(0,179,255,.14));
      border:1px solid rgba(20,20,24,.10);
      display:inline-flex; align-items:center; justify-content:center;
    }
    .tick svg{ width: 12px; height: 12px; }
    .muted{ color: var(--muted); }

    .compare-box{
      display:grid; grid-template-columns: 1.2fr .8fr; gap: 14px;
      align-items: start;
    }
    .rating-card{
      border-radius: var(--radius2);
      border:1px solid rgba(20,20,24,.10);
      background:
        radial-gradient(600px 220px at 20% 0%, rgba(255,79,216,.18), transparent 60%),
        radial-gradient(500px 220px at 80% 10%, rgba(47,85,255,.18), transparent 60%),
        rgba(255,255,255,.72);
      box-shadow: 0 18px 50px rgba(20,20,24,.07);
      padding: 16px;
      overflow:hidden;
      position:relative;
    }
    .rating-card:after{
      content:"";
      position:absolute; inset:-2px;
      background: radial-gradient(260px 120px at 85% 15%, rgba(0,179,255,.18), transparent 60%);
      pointer-events:none;
    }
    .rating-card > *{ position:relative; z-index:1; }
    .stars{
      display:flex; gap:6px; align-items:center; margin: 6px 0 10px 0;
    }
    .star{
      width: 28px; height:28px;
      border-radius: 12px;
      border:1px solid rgba(20,20,24,.10);
      background: rgba(255,255,255,.85);
      display:flex; align-items:center; justify-content:center;
    }
    .score-row{
      display:flex; align-items:flex-end; justify-content:space-between; gap: 10px; flex-wrap:wrap;
      margin-top: 10px;
    }
    .score{
      display:flex; flex-direction:column;
      gap: 4px;
    }
    .score strong{ font-size: 30px; letter-spacing:.2px; }
    .score span{ font-size: 12px; color: var(--muted); }
    .rec-badge{
      display:inline-flex; align-items:center; gap:10px;
      padding: 10px 12px;
      border-radius: 18px;
      border:1px solid rgba(20,20,24,.10);
      background: rgba(255,255,255,.82);
      font-weight: 800;
      white-space:nowrap;
    }
    .rec-badge i{
      width: 12px; height:12px; border-radius: 4px;
      background: linear-gradient(135deg, var(--brand4), var(--brand3));
      box-shadow: 0 0 0 4px rgba(40,209,124,.14);
      display:inline-block;
    }
    .review-grid{
      display:grid; grid-template-columns: repeat(3, 1fr);
      gap: 14px;
    }
    .review{
      border-radius: var(--radius);
      border:1px solid rgba(20,20,24,.10);
      background: rgba(255,255,255,.74);
      padding: 14px;
      transition: transform .2s ease, box-shadow .2s ease;
      box-shadow: 0 14px 40px rgba(20,20,24,.05);
    }
    .review:hover{ transform: translateY(-2px); box-shadow: 0 18px 45px rgba(20,20,24,.08); }
    .review .top{
      display:flex; align-items:flex-start; justify-content:space-between; gap:10px;
      margin-bottom: 10px;
    }
    .avatar{
      width: 38px; height:38px; border-radius: 16px;
      border:1px solid rgba(20,20,24,.10);
      background: linear-gradient(135deg, rgba(255,79,216,.18), rgba(47,85,255,.12));
      display:flex; align-items:center; justify-content:center;
      font-weight: 900;
    }
    .review .role b{ display:block; font-size: 13px; margin-bottom: 4px; }
    .review .role span{ display:block; font-size: 12px; color: var(--muted); }
    .review .text{
      margin:0;
      font-size: 13px;
      line-height:1.75;
      color: rgba(20,20,24,.78);
    }

    .gallery{
      display:grid; grid-template-columns: repeat(3, 1fr);
      gap: 14px;
    }
    .case-card{
      border-radius: var(--radius);
      border:1px solid rgba(20,20,24,.10);
      background: rgba(255,255,255,.74);
      padding: 14px;
      overflow:hidden;
      box-shadow: 0 14px 40px rgba(20,20,24,.05);
      display:flex; flex-direction:column; gap: 10px;
      transition: transform .2s ease, box-shadow .2s ease;
      min-height: 224px;
    }
    .case-card:hover{ transform: translateY(-2px); box-shadow: 0 18px 50px rgba(20,20,24,.08); }
    .case-media{
      border-radius: 16px;
      border:1px solid rgba(20,20,24,.10);
      background:
        radial-gradient(220px 120px at 20% 20%, rgba(255,79,216,.22), transparent 60%),
        radial-gradient(240px 130px at 80% 10%, rgba(47,85,255,.22), transparent 60%),
        radial-gradient(240px 140px at 40% 90%, rgba(0,179,255,.18), transparent 60%),
        rgba(255,255,255,.70);
      height: 96px;
      display:flex; align-items:center; justify-content:space-between; padding: 12px;
    }
    .case-media .k{
      font-size: 12px;
      color: rgba(20,20,24,.70);
      background: rgba(255,255,255,.82);
      border:1px solid rgba(20,20,24,.10);
      padding: 8px 10px;
      border-radius: 999px;
      white-space:nowrap;
    }
    .case-media .bars{
      display:flex; gap:6px; align-items:flex-end;
    }
    .bar{
      width: 12px;
      border-radius: 10px;
      background: linear-gradient(180deg, rgba(47,85,255,.80), rgba(255,79,216,.70));
      border: 1px solid rgba(20,20,24,.10);
      height: var(--h);
      opacity:.95;
      box-shadow: 0 10px 22px rgba(47,85,255,.16);
    }
    .case-card h3{
      margin:0;
      font-size: 15px;
    }
    .case-card p{
      margin:0;
      color: rgba(20,20,24,.74);
      font-size: 13px;
      line-height:1.7;
    }
    .case-foot{
      margin-top:auto;
      display:flex; flex-wrap:wrap; gap:8px; align-items:center;
    }
    .linkish{
      display:inline-flex; align-items:center; gap:8px;
      border-radius: 999px;
      padding: 9px 10px;
      border: 1px solid rgba(20,20,24,.10);
      background: rgba(255,255,255,.82);
      font-size: 12px;
      font-weight: 800;
      transition: transform .15s ease, box-shadow .15s ease, background .2s ease;
    }
    .linkish:hover{ transform: translateY(-1px); box-shadow: 0 14px 30px rgba(20,20,24,.08); background:#fff; }
    .arrow{
      width: 18px; height: 18px;
      border-radius: 8px;
      display:flex; align-items:center; justify-content:center;
      border:1px solid rgba(20,20,24,.10);
      background: linear-gradient(135deg, rgba(0,179,255,.12), rgba(255,79,216,.12));
    }
    .arrow svg{ width: 12px; height:12px; }

    .posts{
      display:grid; grid-template-columns: 1fr 1fr; gap: 14px;
      align-items: start;
    }
    .post-list{
      border-radius: var(--radius2);
      border:1px solid rgba(20,20,24,.10);
      background: rgba(255,255,255,.72);
      box-shadow: 0 18px 50px rgba(20,20,24,.06);
      padding: 16px;
    }
    .post-item{
      display:flex; align-items:flex-start; justify-content:space-between; gap: 12px;
      padding: 12px 10px;
      border-radius: 16px;
      border:1px solid rgba(20,20,24,.0);
      transition: background .2s ease, border-color .2s ease, transform .2s ease;
    }
    .post-item:hover{
      background: rgba(255,255,255,.86);
      border-color: rgba(20,20,24,.10);
      transform: translateY(-1px);
    }
    .post-item + .post-item{ margin-top: 8px; }
    .post-item b{ display:block; font-size: 13px; margin-bottom: 6px; }
    .post-item span{ display:block; font-size: 12px; color: var(--muted); line-height:1.6; }
    .post-link{
      display:inline-flex; align-items:center; gap:8px;
      padding: 8px 10px;
      border-radius: 999px;
      border:1px solid rgba(20,20,24,.10);
      background: rgba(255,255,255,.82);
      font-size: 12px;
      white-space:nowrap;
      transition: transform .15s ease, background .2s ease, box-shadow .15s ease;
      font-weight: 800;
    }
    .post-link:hover{ transform: translateY(-1px); background:#fff; box-shadow: 0 14px 30px rgba(20,20,24,.08); }

    .toolbox{
      border-radius: var(--radius2);
      border:1px solid rgba(20,20,24,.10);
      background:
        radial-gradient(520px 240px at 30% 0%, rgba(255,176,32,.16), transparent 60%),
        radial-gradient(520px 240px at 85% 15%, rgba(47,85,255,.18), transparent 60%),
        rgba(255,255,255,.72);
      box-shadow: 0 18px 50px rgba(20,20,24,.06);
      padding: 16px;
      overflow:hidden;
    }
    .toolbox .row{
      display:flex; align-items:flex-start; justify-content:space-between; gap: 12px; flex-wrap:wrap;
      margin-bottom: 8px;
    }
    .toolbox h3{ margin:0; font-size: 15px; }
    .toolbox p{ margin:0; color: rgba(20,20,24,.75); font-size: 13px; line-height:1.7; }
    .tool-tags{
      display:flex; flex-wrap:wrap; gap: 8px;
      margin-top: 12px;
    }

    .faq{
      border-radius: var(--radius2);
      border:1px solid rgba(20,20,24,.10);
      background: rgba(255,255,255,.72);
      box-shadow: 0 18px 50px rgba(20,20,24,.06);
      overflow:hidden;
    }
    details{
      padding: 0;
      border-top: 1px solid rgba(20,20,24,.08);
    }
    details:first-child{ border-top:none; }
    summary{
      list-style:none;
      cursor:pointer;
      padding: 14px 16px;
      display:flex; align-items:center; justify-content:space-between; gap: 12px;
      font-weight: 800;
      font-size: 13px;
      color: rgba(20,20,24,.92);
    }
    summary::-webkit-details-marker{ display:none; }
    .sum-right{
      display:flex; align-items:center; gap: 10px;
      color: var(--muted);
      font-weight: 700;
      font-size: 12px;
    }
    .chev{
      width: 30px; height:30px;
      border-radius: 14px;
      border:1px solid rgba(20,20,24,.10);
      background: rgba(255,255,255,.82);
      display:flex; align-items:center; justify-content:center;
      transition: transform .2s ease;
      flex: 0 0 auto;
    }
    details[open] .chev{ transform: rotate(180deg); }
    .faq-body{
      padding: 0 16px 14px 16px;
      color: rgba(20,20,24,.76);
      font-size: 13px;
      line-height:1.8;
    }

    .form-card{
      border-radius: var(--radius2);
      border:1px solid rgba(20,20,24,.10);
      background: rgba(255,255,255,.72);
      box-shadow: 0 18px 50px rgba(20,20,24,.06);
      padding: 16px;
      overflow:hidden;
      position:relative;
    }
    .form-card:before{
      content:"";
      position:absolute; inset:-2px;
      background:
        radial-gradient(540px 240px at 10% 0%, rgba(47,85,255,.18), transparent 60%),
        radial-gradient(540px 240px at 90% 10%, rgba(255,79,216,.16), transparent 60%);
      pointer-events:none;
    }
    .form-card > *{ position:relative; z-index:1; }
    form{
      display:grid; gap: 12px;
    }
    .fields{
      display:grid; grid-template-columns: 1fr 1fr; gap: 12px;
    }
    label{
      display:flex; flex-direction:column; gap: 8px;
      font-size: 12px; color: rgba(20,20,24,.86);
      font-weight: 800;
    }
    input, select, textarea{
      border:1px solid rgba(20,20,24,.12);
      border-radius: 14px;
      padding: 11px 12px;
      background: rgba(255,255,255,.90);
      transition: box-shadow .15s ease, border-color .2s ease, background .2s ease;
      color: rgba(20,20,24,.92);
      outline:none;
      min-width: 0;
    }
    textarea{ resize: vertical; min-height: 112px; }
    input:focus, select:focus, textarea:focus{
      border-color: rgba(47,85,255,.30);
      box-shadow: 0 0 0 4px var(--focus);
      background: #fff;
    }

    .form-actions{
      display:flex; align-items:center; justify-content:space-between; gap: 12px; flex-wrap:wrap;
      margin-top: 4px;
    }
    .helper{
      color: var(--muted);
      font-size: 12px;
      line-height:1.6;
      max-width: 52ch;
    }

    footer{
      margin-top: 6px;
      background: linear-gradient(180deg, rgba(255,255,255,.0), rgba(255,255,255,.62) 30%, rgba(255,255,255,.86));
      border-top: 1px solid rgba(20,20,24,.08);
      padding: 18px 0 26px 0;
    }
    .foot-grid{
      display:grid; grid-template-columns: 1.2fr .8fr;
      gap: 14px;
      align-items:start;
    }
    .foot-card{
      border-radius: var(--radius2);
      border:1px solid rgba(20,20,24,.10);
      background: rgba(255,255,255,.72);
      padding: 16px;
      box-shadow: 0 18px 50px rgba(20,20,24,.06);
    }
    .foot-card h3{ margin:0 0 10px 0; font-size: 15px; }
    .foot-card p{ margin:0; color: rgba(20,20,24,.76); font-size: 13px; line-height:1.8; }
    .kv{
      display:grid; grid-template-columns: 1fr 1fr;
      gap: 10px;
      margin-top: 12px;
    }
    .kv .item{
      padding: 10px 10px;
      border-radius: 16px;
      border:1px solid rgba(20,20,24,.10);
      background: rgba(255,255,255,.82);
    }
    .kv .item b{ display:block; font-size: 12px; color: rgba(20,20,24,.88); margin-bottom: 4px; }
    .kv .item a, .kv .item span{ font-size: 12px; color: var(--muted); line-height:1.5; word-break:break-word; }

    .friend-links{
      display:flex; flex-wrap:wrap; gap: 10px;
      margin-top: 12px;
    }
    .friend-links a{
      padding: 9px 10px;
      border-radius: 999px;
      border:1px solid rgba(20,20,24,.10);
      background: rgba(255,255,255,.82);
      font-size: 12px;
      color: rgba(20,20,24,.86);
      transition: transform .15s ease, box-shadow .15s ease, background .2s ease;
      white-space:nowrap;
    }
    .friend-links a:hover{ transform: translateY(-1px); box-shadow: 0 14px 30px rgba(20,20,24,.08); background:#fff; }

    .copyright{
      margin-top: 14px;
      display:flex; align-items:center; justify-content:space-between; gap: 10px; flex-wrap:wrap;
      color: rgba(20,20,24,.66);
      font-size: 12px;
    }

    .floating{
      position: fixed; right: 14px; bottom: 14px;
      z-index: 80;
      display:flex; flex-direction:column; gap: 10px;
      align-items:flex-end;
    }
    .float-btn{
      border-radius: 18px;
      border:1px solid rgba(20,20,24,.12);
      background: rgba(255,255,255,.78);
      backdrop-filter: blur(10px);
      box-shadow: 0 18px 50px rgba(20,20,24,.10);
      padding: 10px 12px;
      cursor:pointer;
      display:flex; align-items:center; gap: 10px;
      transition: transform .15s ease, box-shadow .15s ease, background .2s ease;
      user-select:none;
    }
    .float-btn:hover{ transform: translateY(-2px); background:#fff; box-shadow: 0 22px 60px rgba(20,20,24,.14); }
    .float-btn .f-icon{
      width: 36px; height:36px; border-radius: 16px;
      border:1px solid rgba(20,20,24,.10);
      background: linear-gradient(135deg, rgba(0,179,255,.14), rgba(255,79,216,.14));
      display:flex; align-items:center; justify-content:center;
    }
    .float-btn .f-icon svg{ width:18px; height:18px; }
    .float-btn b{ font-size: 13px; }
    .float-btn span{ display:block; font-size: 12px; color: var(--muted); margin-top: 2px; }

    .qrcode-pop{
      width: min(320px, calc(100vw - 28px));
      border-radius: 22px;
      border:1px solid rgba(20,20,24,.12);
      background: rgba(255,255,255,.86);
      backdrop-filter: blur(10px);
      box-shadow: 0 26px 80px rgba(20,20,24,.18);
      overflow:hidden;
      transform-origin: 90% 100%;
      animation: pop .18s ease-out;
    }
    @keyframes pop{
      from{ transform: scale(.98) translateY(8px); opacity:.0; }
      to{ transform: scale(1) translateY(0); opacity:1; }
    }
    .qrcode-top{
      padding: 12px 14px;
      border-bottom: 1px solid rgba(20,20,24,.08);
      display:flex; align-items:center; justify-content:space-between; gap: 10px;
    }
    .qrcode-top b{ font-size: 13px; }
    .close-x{
      width: 34px; height:34px; border-radius: 14px;
      border:1px solid rgba(20,20,24,.12);
      background:#fff;
      cursor:pointer;
      display:flex; align-items:center; justify-content:center;
      transition: transform .15s ease;
    }
    .close-x:hover{ transform: translateY(-1px); }
    .close-x svg{ width:16px; height:16px; }
    .qrcode-body{
      padding: 12px 14px 14px 14px;
      display:flex; gap: 12px; align-items:flex-start;
    }
    .qrcode-body img{
      width: 104px; height:104px; border-radius: 18px;
      border:1px solid rgba(20,20,24,.10);
      object-fit:cover;
      background:#fff;
    }
    .qrcode-body .hint{
      color: rgba(20,20,24,.78);
      font-size: 13px;
      line-height:1.75;
      margin:0;
    }
    .qrcode-actions{
      padding: 0 14px 14px 14px;
      display:flex; gap: 10px; flex-wrap:wrap;
    }
    .qrcode-actions .btn{
      padding: 10px 12px;
      border-radius: 16px;
      box-shadow:none;
    }

    .to-top{
      position: fixed; right: 14px; bottom: 92px;
      z-index: 75;
      width: 46px; height:46px;
      border-radius: 18px;
      border:1px solid rgba(20,20,24,.12);
      background: rgba(255,255,255,.78);
      backdrop-filter: blur(10px);
      box-shadow: 0 18px 50px rgba(20,20,24,.10);
      display:flex; align-items:center; justify-content:center;
      cursor:pointer;
      transition: transform .15s ease, opacity .2s ease;
      opacity: 0;
      pointer-events:none;
    }
    .to-top.show{ opacity: 1; pointer-events:auto; }
    .to-top:hover{ transform: translateY(-2px); background:#fff; }
    .to-top svg{ width:18px; height:18px; }

    .reveal{
      opacity: 0;
      transform: translateY(10px);
      transition: opacity .6s ease, transform .6s ease;
    }
    .reveal.show{
      opacity: 1;
      transform: translateY(0);
    }

    @media (max-width: 980px){
      .hero-grid{ grid-template-columns: 1fr; }
      .nav-links{ display:none; }
      .burger{ display:flex; }
      .mobile-panel{ display:block; }
      .grid-3{ grid-template-columns: 1fr; }
      .grid-2{ grid-template-columns: 1fr; }
      .steps{ grid-template-columns: 1fr 1fr; }
      .compare-box{ grid-template-columns: 1fr; }
      .review-grid{ grid-template-columns: 1fr; }
      .gallery{ grid-template-columns: 1fr; }
      .posts{ grid-template-columns: 1fr; }
      .fields{ grid-template-columns: 1fr; }
      .foot-grid{ grid-template-columns: 1fr; }
      table{ min-width: 760px; }
      .mobile-links{ grid-template-columns: 1fr; }
    }

    @media (prefers-reduced-motion: reduce){
      *{ scroll-behavior:auto !important; transition:none !important; animation:none !important; }
      .reveal{ opacity:1; transform:none; }
    }