:root{
      --bg0:#f7f7fb;
      --bg1:#ffffff;
      --text:#1f2937;
      --muted:#5b6676;
      --line:rgba(15,23,42,.10);
      --line2:rgba(15,23,42,.14);
      --brand:#1a73ff;
      --brand2:#6d4cff;
      --ok:#16a34a;
      --warn:#b45309;
      --shadow: 0 14px 40px rgba(17,24,39,.08);
      --shadow2: 0 10px 24px rgba(17,24,39,.10);
      --radius:18px;
      --radius2:14px;
      --radius3:10px;
      --max:1120px;
      --container-pad:18px;
    }
    *{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(--text);
      background:
        radial-gradient(1200px 600px at 20% -10%, rgba(26,115,255,.16), transparent 55%),
        radial-gradient(1000px 520px at 90% 0%, rgba(109,76,255,.14), transparent 52%),
        radial-gradient(900px 500px at 40% 110%, rgba(26,115,255,.10), transparent 50%),
        linear-gradient(180deg, #f8f8ff 0%, var(--bg0) 55%, #ffffff 100%);
    }
    a{color:inherit; text-decoration:none}
    .container{
      width:100%;
      max-width:var(--max);
      margin:0 auto;
      padding:0 var(--container-pad);
    }
    .skip{
      position:absolute; left:-999px; top:auto; width:1px; height:1px; overflow:hidden;
    }
    .skip:focus{
      left:16px; top:16px; width:auto; height:auto; padding:10px 12px;
      background:#fff; border:1px solid var(--line2); border-radius:10px; z-index:9999;
    }

    header{
      position:sticky; top:0; z-index:50;
      backdrop-filter:saturate(160%) blur(10px);
      background: rgba(247,247,251,.72);
      border-bottom:1px solid rgba(15,23,42,.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: 180px;
    }
    .ai-page-logo{width:44px; height:44px; object-fit:contain; border-radius:12px; background: rgba(255,255,255,.8); padding:6px; box-shadow: 0 8px 18px rgba(26,115,255,.10); border:1px solid rgba(26,115,255,.18);}
    .brand-title{display:flex; flex-direction:column; line-height:1.1}
    .brand-title strong{font-size:14px; letter-spacing:.2px}
    .brand-title span{font-size:12px; color:var(--muted); margin-top:4px}
    .nav-right{display:flex; align-items:center; gap:10px}
    .nav-links{
      display:flex; align-items:center; gap:16px; flex-wrap:nowrap;
    }
    .nav-links a{
      font-size:13px; color:rgba(31,41,55,.88);
      padding:8px 10px; border-radius:12px;
      transition: background .2s ease, transform .2s ease;
    }
    .nav-links a:hover{
      background: rgba(26,115,255,.08);
      transform: translateY(-1px);
    }
    .nav-cta{display:flex; align-items:center; gap:10px; flex-wrap:nowrap}
    .btn{
      display:inline-flex; align-items:center; justify-content:center; gap:10px;
      border-radius:14px;
      padding:11px 14px;
      border:1px solid rgba(15,23,42,.10);
      background:#fff;
      color:rgba(31,41,55,.95);
      font-size:13px;
      font-weight:650;
      cursor:pointer;
      transition: transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease;
      user-select:none;
      white-space:nowrap;
    }
    .btn:hover{transform: translateY(-1px); box-shadow: 0 12px 26px rgba(17,24,39,.10); border-color: rgba(26,115,255,.22);}
    .btn-primary{
      background: linear-gradient(135deg, rgba(26,115,255,1) 0%, rgba(109,76,255,1) 100%);
      border-color: rgba(26,115,255,.35);
      color:#fff;
      box-shadow: 0 18px 34px rgba(26,115,255,.20);
    }
    .btn-primary:hover{box-shadow: 0 22px 46px rgba(26,115,255,.26);}
    .btn-ghost{
      background: rgba(255,255,255,.66);
    }
    .btn-sm{padding:9px 12px; border-radius:12px; font-size:12.5px}

    .menu-btn{
      display:none;
      width:42px; height:42px;
      border-radius:14px;
      border:1px solid rgba(15,23,42,.12);
      background: rgba(255,255,255,.70);
      cursor:pointer;
      transition: transform .18s ease, box-shadow .18s ease;
    }
    .menu-btn:hover{transform: translateY(-1px); box-shadow: 0 12px 26px rgba(17,24,39,.10);}
    .menu-icon{
      width:18px; height:12px; position:relative; margin:0 auto;
    }
    .menu-icon span{
      position:absolute; left:0; right:0; height:2px; border-radius:4px; background: rgba(31,41,55,.84);
      transition: transform .2s ease, opacity .2s ease, top .2s ease;
    }
    .menu-icon span:nth-child(1){top:0}
    .menu-icon span:nth-child(2){top:5px}
    .menu-icon span:nth-child(3){top:10px}

    .mobile-panel{
      display:none;
      border-top:1px solid rgba(15,23,42,.08);
      padding:12px 0 16px;
    }
    .mobile-panel a{
      display:flex; align-items:center; justify-content:space-between;
      padding:12px 12px; border-radius:14px;
      border:1px solid rgba(15,23,42,.08);
      background: rgba(255,255,255,.6);
      margin-top:10px;
      font-size:13px;
    }
    .mobile-panel a:active{transform: scale(.99)}

    @media (max-width: 960px){
      .nav-links{display:none}
      .nav-cta .btn-ghost{display:none}
      .menu-btn{display:inline-flex; align-items:center; justify-content:center}
      .mobile-panel{display:block}
    }

    main{padding:18px 0 0}

    .hero{
      padding:22px 0 6px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns: 1.08fr .92fr;
      gap:18px;
      align-items:stretch;
    }
    @media (max-width: 980px){
      .hero-grid{grid-template-columns:1fr; gap:14px}
    }

    .hero-card{
      position:relative;
      border-radius: calc(var(--radius) + 6px);
      border:1px solid rgba(15,23,42,.10);
      background:
        radial-gradient(900px 420px at 0% 0%, rgba(26,115,255,.18), transparent 55%),
        radial-gradient(720px 380px at 100% 20%, rgba(109,76,255,.16), transparent 55%),
        linear-gradient(180deg, rgba(255,255,255,.86), rgba(255,255,255,.68));
      box-shadow: var(--shadow);
      overflow:hidden;
    }
    .hero-inner{padding:22px 20px 18px}
    .kicker{
      display:flex; align-items:center; gap:10px; flex-wrap:wrap;
      color: rgba(31,41,55,.90);
      font-size:12.5px;
      margin-bottom:10px;
    }
    .pill{
      display:inline-flex; align-items:center; gap:8px;
      padding:7px 10px;
      border-radius:999px;
      border:1px solid rgba(26,115,255,.22);
      background: rgba(26,115,255,.07);
      color: rgba(26,115,255,.98);
      font-weight:650;
    }
    .dot{
      width:8px; height:8px; border-radius:999px;
      background: linear-gradient(135deg, rgba(26,115,255,1), rgba(109,76,255,1));
      box-shadow: 0 0 0 3px rgba(26,115,255,.18);
    }
    .hero h1{
      margin:0;
      font-size:34px;
      letter-spacing: -0.6px;
      line-height:1.12;
    }
    @media (max-width: 520px){
      .hero h1{font-size:28px}
    }
    .sub{
      margin:12px 0 16px;
      color: var(--muted);
      font-size:14.5px;
      line-height:1.7;
      max-width: 60ch;
    }
    .hero-actions{
      display:flex; gap:12px; flex-wrap:wrap; align-items:center;
      margin-top:12px;
    }
    .hero-note{
      display:flex; align-items:center; gap:10px;
      margin-top:14px; flex-wrap:wrap;
      color: rgba(31,41,55,.90);
      font-size:12.8px;
    }
    .hero-note .item{
      display:flex; align-items:center; gap:8px;
      padding:8px 10px;
      border-radius:14px;
      border:1px dashed rgba(15,23,42,.12);
      background: rgba(255,255,255,.52);
    }
    .icon{
      width:18px; height:18px; display:inline-block;
      border-radius:6px;
      background: rgba(26,115,255,.10);
      border:1px solid rgba(26,115,255,.20);
      position:relative;
    }
    .icon svg{position:absolute; inset:3px; width:12px; height:12px}
    .shine{
      position:absolute; inset:-1px;
      pointer-events:none;
      background:
        linear-gradient(120deg, rgba(255,255,255,0) 0%,
        rgba(255,255,255,.55) 18%,
        rgba(255,255,255,0) 38%);
      transform: translateX(-60%) rotate(8deg);
      opacity:.55;
      transition: transform .9s ease;
    }
    .hero-card:hover .shine{transform: translateX(60%) rotate(8deg)}
    .hero-aside{
      border-radius: calc(var(--radius) + 6px);
      border:1px solid rgba(15,23,42,.10);
      background: linear-gradient(180deg, rgba(255,255,255,.82), rgba(255,255,255,.62));
      box-shadow: var(--shadow);
      overflow:hidden;
    }
    .aside-inner{padding:18px}
    .aside-title{
      display:flex; align-items:flex-start; justify-content:space-between; gap:10px; margin-bottom:12px;
    }
    .aside-title h2{
      margin:0;
      font-size:15px;
      letter-spacing:.2px;
    }
    .badge{
      display:inline-flex; align-items:center; gap:8px;
      font-size:12px; color: rgba(255,255,255,.96);
      padding:7px 10px; border-radius:999px;
      background: linear-gradient(135deg, rgba(26,115,255,1), rgba(109,76,255,1));
      box-shadow: 0 12px 26px rgba(26,115,255,.22);
      font-weight:720;
      white-space:nowrap;
    }
    .badge svg{width:14px; height:14px}
    .data-grid{
      display:grid; grid-template-columns: 1fr 1fr; gap:10px;
      margin-top:10px;
    }
    .data-card{
      border-radius:16px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.58);
      padding:12px 12px;
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .data-card:hover{
      transform: translateY(-2px);
      border-color: rgba(26,115,255,.24);
      box-shadow: 0 18px 40px rgba(17,24,39,.10);
    }
    .data-card strong{
      display:block; font-size:18px; letter-spacing:-.4px;
    }
    .data-card span{
      display:block; margin-top:6px; font-size:12.5px; color: var(--muted); line-height:1.4;
    }
    .model-tags{
      display:flex; flex-wrap:wrap; gap:8px;
      margin-top:14px;
    }
    .tag{
      display:inline-flex; align-items:center; gap:8px;
      padding:8px 10px; border-radius:999px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.55);
      font-size:12.5px;
      color: rgba(31,41,55,.92);
    }
    .tag i{
      width:8px; height:8px; border-radius:999px; background: rgba(26,115,255,.55);
      display:inline-block; box-shadow: 0 0 0 3px rgba(26,115,255,.14);
    }
    .model-tags .tag:nth-child(2) i{background: rgba(109,76,255,.58)}
    .model-tags .tag:nth-child(3) i{background: rgba(16,185,129,.48)}
    .model-tags .tag:nth-child(4) i{background: rgba(245,158,11,.55)}

    .section{
      padding:18px 0;
    }
    .section-head{
      display:flex; align-items:flex-end; justify-content:space-between; gap:14px;
      margin-bottom:12px;
    }
    .section-head h2{
      margin:0;
      font-size:20px;
      letter-spacing:-.2px;
    }
    .section-head p{
      margin:0; color: var(--muted);
      font-size:13.5px; line-height:1.6;
      max-width:58ch;
    }

    .grid-3{
      display:grid; grid-template-columns: repeat(3, 1fr); gap:12px;
    }
    @media (max-width: 980px){ .grid-3{grid-template-columns: 1fr 1fr} }
    @media (max-width: 560px){ .grid-3{grid-template-columns: 1fr} }

    .card{
      border:1px solid rgba(15,23,42,.10);
      border-radius: var(--radius);
      background: rgba(255,255,255,.65);
      box-shadow: 0 10px 22px rgba(17,24,39,.06);
      overflow:hidden;
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .card:hover{
      transform: translateY(-2px);
      border-color: rgba(26,115,255,.22);
      box-shadow: 0 18px 44px rgba(17,24,39,.10);
    }
    .card-inner{padding:16px}
    .card-top{display:flex; align-items:flex-start; justify-content:space-between; gap:12px}
    .card h3{margin:0; font-size:15px; letter-spacing:.1px}
    .card p{margin:10px 0 0; color: var(--muted); font-size:13.5px; line-height:1.7}
    .chip{
      width:38px; height:38px; border-radius:14px;
      border:1px solid rgba(26,115,255,.18);
      background: rgba(26,115,255,.08);
      display:flex; align-items:center; justify-content:center;
      flex:0 0 auto;
    }
    .chip svg{width:18px; height:18px}

    .split{
      display:grid;
      grid-template-columns: 1.05fr .95fr;
      gap:12px;
      align-items:start;
    }
    @media (max-width: 980px){ .split{grid-template-columns:1fr} }

    .steps{
      display:grid; grid-template-columns: 1fr 1fr; gap:12px;
    }
    @media (max-width: 560px){ .steps{grid-template-columns:1fr} }
    .step{
      position:relative;
      border-radius: var(--radius);
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.65);
      padding:16px;
      overflow:hidden;
    }
    .step .num{
      width:42px; height:42px;
      border-radius:16px;
      background: linear-gradient(135deg, rgba(26,115,255,.16), rgba(109,76,255,.14));
      border:1px solid rgba(26,115,255,.22);
      display:flex; align-items:center; justify-content:center;
      font-weight:820;
      color: rgba(26,115,255,.98);
      letter-spacing:-.2px;
    }
    .step h3{margin:12px 0 0; font-size:15px}
    .step p{margin:8px 0 0; color:var(--muted); font-size:13.5px; line-height:1.7}
    .step:before{
      content:"";
      position:absolute; inset:auto -40px -40px auto;
      width:120px; height:120px;
      border-radius:50%;
      background: radial-gradient(circle at 30% 30%, rgba(26,115,255,.20), transparent 55%);
      pointer-events:none;
    }

    .table-wrap{
      border:1px solid rgba(15,23,42,.10);
      border-radius: var(--radius);
      background: rgba(255,255,255,.65);
      overflow:auto;
      box-shadow: 0 10px 22px rgba(17,24,39,.06);
    }
    table{
      width:100%;
      min-width: 720px;
      border-collapse: collapse;
    }
    th, td{
      padding:12px 12px;
      border-bottom: 1px solid rgba(15,23,42,.08);
      font-size:13.5px;
      vertical-align: top;
    }
    th{
      background: rgba(26,115,255,.06);
      color: rgba(31,41,55,.95);
      font-weight:800;
      text-align:left;
      position:sticky; top:0;
      z-index:1;
    }
    tr:last-child td{border-bottom:none}
    .good{
      display:inline-flex; align-items:center; gap:8px;
      padding:7px 10px; border-radius:999px;
      border:1px solid rgba(22,163,74,.22);
      background: rgba(22,163,74,.08);
      color: rgba(22,163,74,.98);
      font-weight:760;
      font-size:12.5px;
      white-space:nowrap;
    }
    .neutral{
      display:inline-flex; align-items:center; gap:8px;
      padding:7px 10px; border-radius:999px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.55);
      color: rgba(31,41,55,.92);
      font-weight:740;
      font-size:12.5px;
      white-space:nowrap;
    }

    .rating-card{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:12px;
      align-items:stretch;
      margin-top:12px;
    }
    @media (max-width: 760px){ .rating-card{grid-template-columns:1fr} }
    .score{
      border-radius: var(--radius);
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.68);
      padding:16px;
      display:flex; flex-direction:column; gap:10px;
    }
    .score .topline{display:flex; align-items:flex-start; justify-content:space-between; gap:10px}
    .stars{
      display:flex; gap:4px; margin-top:2px;
    }
    .star{
      width:18px; height:18px; display:inline-block;
      background: linear-gradient(135deg, rgba(245,158,11,1), rgba(26,115,255,.2));
      clip-path: polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
      box-shadow: 0 0 0 3px rgba(245,158,11,.12);
      border-radius:2px;
    }
    .score strong{font-size:34px; letter-spacing:-.8px}
    .score span{color:var(--muted); font-size:13.5px; line-height:1.6}
    .recommend{
      border-radius: var(--radius);
      border:1px solid rgba(15,23,42,.10);
      background:
        radial-gradient(650px 220px at 0% 0%, rgba(26,115,255,.14), transparent 55%),
        radial-gradient(600px 240px at 100% 0%, rgba(109,76,255,.12), transparent 55%),
        rgba(255,255,255,.68);
      padding:16px;
    }
    .recommend h3{margin:0; font-size:15px}
    .recommend .row{display:flex; align-items:center; gap:12px; margin-top:10px; flex-wrap:wrap}
    .tag-big{
      display:inline-flex; align-items:center; gap:10px;
      padding:10px 12px;
      border-radius:999px;
      background: rgba(26,115,255,.09);
      border:1px solid rgba(26,115,255,.22);
      color: rgba(26,115,255,.98);
      font-weight:860;
    }

    details.faq{
      border:1px solid rgba(15,23,42,.10);
      border-radius: var(--radius);
      background: rgba(255,255,255,.65);
      box-shadow: 0 10px 22px rgba(17,24,39,.06);
      overflow:hidden;
    }
    details.faq[open]{border-color: rgba(26,115,255,.22); box-shadow: 0 18px 44px rgba(17,24,39,.10)}
    details.faq summary{
      list-style:none;
      padding:14px 16px;
      cursor:pointer;
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
      user-select:none;
      font-weight:780;
      font-size:14px;
    }
    details.faq summary::-webkit-details-marker{display:none}
    .summary-right{
      flex:0 0 auto;
      width:28px; height:28px;
      border-radius:12px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.55);
      display:flex; align-items:center; justify-content:center;
      transition: transform .2s ease, border-color .2s ease;
      margin-top:-2px;
    }
    details.faq[open] .summary-right{transform: rotate(45deg); border-color: rgba(26,115,255,.22)}
    .faq-answer{
      padding:0 16px 16px;
      color: var(--muted);
      font-size:13.8px;
      line-height:1.8;
    }

    .comments-grid{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap:12px;
    }
    @media (max-width: 980px){ .comments-grid{grid-template-columns:1fr 1fr} }
    @media (max-width: 560px){ .comments-grid{grid-template-columns:1fr} }
    .comment{
      border-radius: var(--radius);
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.65);
      box-shadow: 0 10px 22px rgba(17,24,39,.06);
      padding:16px;
      display:flex; flex-direction:column; gap:10px;
      min-height: 190px;
    }
    .comment .who{display:flex; align-items:center; justify-content:space-between; gap:10px}
    .avatar{
      width:42px; height:42px; border-radius:16px;
      background: linear-gradient(135deg, rgba(26,115,255,.14), rgba(109,76,255,.12));
      border:1px solid rgba(26,115,255,.22);
      display:flex; align-items:center; justify-content:center;
      color: rgba(26,115,255,.98);
      font-weight:900;
      letter-spacing:-.2px;
      flex:0 0 auto;
    }
    .who strong{font-size:14px}
    .role{font-size:12.5px; color:var(--muted); margin-top:6px}
    .quote{
      margin:0;
      color: rgba(31,41,55,.92);
      font-size:13.6px;
      line-height:1.75;
    }
    .meta{
      margin-top:auto;
      display:flex; align-items:center; justify-content:space-between; gap:10px; flex-wrap:wrap;
      color: var(--muted);
      font-size:12.5px;
    }

    .case-grid{
      display:grid;
      grid-template-columns: 1fr 1fr 1fr;
      gap:12px;
    }
    @media (max-width: 980px){ .case-grid{grid-template-columns:1fr 1fr} }
    @media (max-width: 560px){ .case-grid{grid-template-columns:1fr} }
    .case{
      border-radius: var(--radius);
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.65);
      box-shadow: 0 10px 22px rgba(17,24,39,.06);
      overflow:hidden;
      display:flex; flex-direction:column;
    }
    .media{
      padding:12px;
      background: linear-gradient(180deg, rgba(26,115,255,.08), rgba(255,255,255,.0));
      display:flex; align-items:center; justify-content:center;
    }
    .imgbox{
      width:100%;
      aspect-ratio: 16 / 10;
      border-radius: 16px;
      background: rgba(15,23,42,.04);
      border:1px solid rgba(15,23,42,.08);
      overflow:hidden;
      display:flex;
      align-items:center;
      justify-content:center;
    }
    .imgbox img{width:100%; height:100%; object-fit:cover; display:block}
    .case-inner{padding:14px 16px 16px; display:flex; flex-direction:column; gap:8px}
    .case-inner h3{margin:0; font-size:15px}
    .case-inner p{margin:0; color:var(--muted); font-size:13.4px; line-height:1.65}
    .case-marks{display:flex; gap:8px; flex-wrap:wrap; margin-top:8px}
    .mark{
      padding:7px 10px;
      border-radius:999px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.55);
      font-size:12.5px; color: rgba(31,41,55,.92);
      white-space:nowrap;
    }

    .article-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:12px;
    }
    @media (max-width: 980px){ .article-grid{grid-template-columns:1fr} }
    .article-list{
      border-radius: var(--radius);
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.65);
      box-shadow: 0 10px 22px rgba(17,24,39,.06);
      overflow:hidden;
    }
    .article-list .head{
      padding:14px 16px;
      border-bottom:1px solid rgba(15,23,42,.08);
      display:flex; align-items:center; justify-content:space-between; gap:10px;
    }
    .article-list .head strong{font-size:14.5px}
    .article-list ul{list-style:none; margin:0; padding:6px 0}
    .article-list li a{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      padding:12px 16px;
      border-top:1px solid rgba(15,23,42,.08);
      font-size:13.5px;
      color: rgba(31,41,55,.92);
      transition: background .2s ease;
    }
    .article-list li:first-child a{border-top:none}
    .article-list li a:hover{background: rgba(26,115,255,.06)}
    .arrow{
      width:26px; height:26px; border-radius:12px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.55);
      display:flex; align-items:center; justify-content:center;
      flex:0 0 auto;
    }
    .arrow svg{width:14px; height:14px}

    .form-card{
      border-radius: var(--radius);
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.65);
      box-shadow: 0 10px 22px rgba(17,24,39,.06);
      overflow:hidden;
    }
    .form-inner{padding:16px}
    .form-inner h3{margin:0; font-size:15.5px}
    .form-inner p{margin:10px 0 14px; color:var(--muted); font-size:13.6px; line-height:1.7}
    form{display:grid; grid-template-columns: 1fr 1fr; gap:12px}
    @media (max-width: 760px){ form{grid-template-columns:1fr} }
    label{display:flex; flex-direction:column; gap:7px; font-size:12.8px; color: rgba(31,41,55,.92); font-weight:700}
    input, select, textarea{
      width:100%;
      border-radius: 14px;
      border:1px solid rgba(15,23,42,.14);
      background: rgba(255,255,255,.75);
      padding:12px 12px;
      font-size:14px;
      outline:none;
      transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease;
    }
    textarea{min-height:112px; resize:vertical}
    input:focus, select:focus, textarea:focus{
      border-color: rgba(26,115,255,.35);
      box-shadow: 0 0 0 4px rgba(26,115,255,.12);
    }
    .form-actions{
      grid-column: 1 / -1;
      display:flex; align-items:center; justify-content:space-between; gap:12px; flex-wrap:wrap;
      margin-top:2px;
    }
    .hint{
      color:var(--muted);
      font-size:12.6px;
      line-height:1.5;
      max-width: 62ch;
    }
    .btn-row{display:flex; gap:10px; flex-wrap:wrap}

    .price-row{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:12px;
    }
    @media (max-width: 980px){ .price-row{grid-template-columns:1fr} }
    .price-card{
      border-radius: var(--radius);
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.65);
      box-shadow: 0 10px 22px rgba(17,24,39,.06);
      padding:16px;
    }
    .price-card h3{margin:0; font-size:15.5px}
    .price-card p{margin:10px 0 12px; color:var(--muted); font-size:13.6px; line-height:1.7}
    .slider{
      display:flex; flex-direction:column; gap:10px;
      border-top:1px solid rgba(15,23,42,.08);
      padding-top:12px;
    }
    .slider label{font-weight:760}
    .range{
      width:100%;
      accent-color: var(--brand);
    }
    .range-out{
      display:flex; align-items:center; justify-content:space-between; gap:12px; flex-wrap:wrap;
      color: rgba(31,41,55,.92);
      font-size:13px;
    }
    .mini-table{
      margin-top:10px;
      display:grid; grid-template-columns: 1fr; gap:8px;
    }
    .mini-item{
      border-radius: 14px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.55);
      padding:12px;
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
    }
    .mini-item strong{font-size:14px}
    .mini-item span{display:block; margin-top:6px; color:var(--muted); font-size:12.6px; line-height:1.55}

    .timeline{
      border-radius: var(--radius);
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.65);
      box-shadow: 0 10px 22px rgba(17,24,39,.06);
      padding:16px;
    }
    .timeline h3{margin:0; font-size:15.5px}
    .line-steps{margin-top:12px; display:flex; flex-direction:column; gap:10px}
    .titem{
      display:flex; gap:12px; align-items:flex-start;
      padding:12px;
      border-radius: 16px;
      border:1px solid rgba(15,23,42,.08);
      background: rgba(255,255,255,.55);
    }
    .titem .p{
      width:34px; height:34px; border-radius:14px;
      border:1px solid rgba(26,115,255,.18);
      background: rgba(26,115,255,.08);
      display:flex; align-items:center; justify-content:center;
      color: rgba(26,115,255,.98);
      font-weight:900;
      flex:0 0 auto;
    }
    .titem strong{display:block; font-size:14px}
    .titem span{display:block; margin-top:6px; color:var(--muted); font-size:13px; line-height:1.65}

    .network-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:12px;
    }
    @media (max-width: 980px){ .network-grid{grid-template-columns:1fr} }
    .map-card{
      border-radius: var(--radius);
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.65);
      box-shadow: 0 10px 22px rgba(17,24,39,.06);
      overflow:hidden;
    }
    .map-head{
      padding:14px 16px;
      border-bottom:1px solid rgba(15,23,42,.08);
      display:flex; align-items:center; justify-content:space-between; gap:10px;
    }
    .map-head strong{font-size:14.5px}
    .map-body{padding:14px 16px 16px}
    .cities{
      display:flex; flex-wrap:wrap; gap:10px;
    }
    .city{
      display:inline-flex; align-items:center; gap:10px;
      padding:10px 12px;
      border-radius:999px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.55);
      font-size:13px;
      color: rgba(31,41,55,.92);
      font-weight:750;
      white-space:nowrap;
    }
    .city i{
      width:10px; height:10px; border-radius:999px;
      background: linear-gradient(135deg, rgba(26,115,255,1), rgba(109,76,255,1));
      box-shadow: 0 0 0 3px rgba(26,115,255,.14);
      display:inline-block;
    }

    .links-card{
      border-radius: var(--radius);
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.65);
      box-shadow: 0 10px 22px rgba(17,24,39,.06);
      padding:16px;
    }
    .links-card h3{margin:0; font-size:15.5px}
    .links-card p{margin:10px 0 12px; color:var(--muted); font-size:13.6px; line-height:1.7}
    .friends{
      display:grid; grid-template-columns: 1fr 1fr;
      gap:10px;
    }
    @media (max-width: 560px){ .friends{grid-template-columns:1fr} }
    .friends a{
      border-radius: 14px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.55);
      padding:12px;
      font-size:13.5px;
      transition: transform .18s ease, background .18s ease, border-color .18s ease;
      overflow:hidden;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .friends a:hover{
      transform: translateY(-2px);
      background: rgba(26,115,255,.06);
      border-color: rgba(26,115,255,.22);
    }

    .anchor-gap{scroll-margin-top: 86px}

    .ai-badge-cloud{
      display:flex; flex-wrap:wrap; gap:10px;
      margin-top:12px;
    }
    .cloud{
      border-radius:999px;
      padding:10px 12px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.55);
      font-size:13px;
      color: rgba(31,41,55,.92);
      font-weight:780;
      transition: transform .18s ease, border-color .18s ease, background .18s ease;
      user-select:none;
    }
    .cloud:hover{transform: translateY(-2px); border-color: rgba(26,115,255,.22); background: rgba(26,115,255,.06)}
    .cloud em{font-style:normal; color: rgba(26,115,255,.98)}

    footer{
      padding:18px 0 26px;
      background: linear-gradient(180deg, rgba(255,255,255,.0) 0%, rgba(247,247,251,.90) 40%, rgba(255,255,255,.95) 100%);
      border-top: 1px solid rgba(15,23,42,.08);
      margin-top: 14px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns: 1.1fr .9fr;
      gap:12px;
      align-items:start;
    }
    @media (max-width: 900px){ .footer-grid{grid-template-columns:1fr} }
    .footer-card{
      border-radius: var(--radius);
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.75);
      box-shadow: 0 10px 22px rgba(17,24,39,.06);
      padding:16px;
    }
    .footer-card h3{margin:0; font-size:15.5px}
    .footer-card p{margin:10px 0 0; color:var(--muted); font-size:13.6px; line-height:1.7}
    .footer-links{margin-top:12px; display:flex; flex-wrap:wrap; gap:10px}
    .footer-links a{
      padding:9px 12px;
      border-radius:999px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.55);
      font-size:13px;
      transition: transform .18s ease, background .18s ease;
    }
    .footer-links a:hover{transform: translateY(-2px); background: rgba(26,115,255,.06)}
    .copyright{
      margin-top:12px;
      color: var(--muted);
      font-size:12.8px;
      display:flex; align-items:center; justify-content:space-between; gap:12px; flex-wrap:wrap;
    }
    .right-small{
      color: var(--muted);
      font-size:12.8px;
      line-height:1.6;
    }

    .float-help{
      position:fixed; right:16px; bottom:16px;
      z-index:80;
      display:flex; flex-direction:column; gap:10px;
      align-items:flex-end;
    }
    .help-card{
      display:flex; flex-direction:column; gap:10px; align-items:flex-end;
    }
    .help-pop{
      width: 260px;
      border-radius: 18px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.86);
      box-shadow: 0 18px 44px rgba(17,24,39,.18);
      overflow:hidden;
      transform-origin: 100% 100%;
      display:none;
    }
    .help-pop.open{display:block}
    .help-pop .pop-head{
      padding:12px 14px;
      border-bottom:1px solid rgba(15,23,42,.08);
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      background: linear-gradient(135deg, rgba(26,115,255,.10), rgba(109,76,255,.06));
    }
    .help-pop .pop-head strong{font-size:13.5px}
    .close-x{
      width:30px; height:30px; border-radius:12px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.6);
      cursor:pointer;
    }
    .close-x svg{width:14px; height:14px}
    .pop-body{padding:12px 14px 14px; display:flex; gap:12px; align-items:center}
    .pop-body img{
      width:84px; height:84px; border-radius:16px; border:1px solid rgba(15,23,42,.10);
      background:#fff; object-fit:cover;
    }
    .pop-body .pop-text{display:flex; flex-direction:column; gap:6px}
    .pop-body .pop-text span{color:var(--muted); font-size:12.6px; line-height:1.5}
    .help-main{
      border-radius: 18px;
      padding:12px 12px;
      border:1px solid rgba(26,115,255,.25);
      background: rgba(255,255,255,.86);
      box-shadow: 0 18px 44px rgba(17,24,39,.18);
      cursor:pointer;
      transition: transform .18s ease, box-shadow .18s ease;
      display:flex; align-items:center; gap:10px;
    }
    .help-main:hover{transform: translateY(-2px); box-shadow: 0 22px 56px rgba(17,24,39,.22)}
    .help-main .badge2{
      width:38px; height:38px; border-radius:16px;
      background: linear-gradient(135deg, rgba(26,115,255,1), rgba(109,76,255,1));
      display:flex; align-items:center; justify-content:center;
      color:#fff; font-weight:900;
      flex:0 0 auto;
    }
    .help-main strong{font-size:13.8px}
    .help-main span{display:block; color:var(--muted); font-size:12.4px; margin-top:4px}
    .help-actions{display:flex; gap:10px; margin-top:10px; flex-wrap:wrap}
    .help-actions .btn{padding:10px 12px}

    .to-top{
      width:46px; height:46px;
      border-radius: 18px;
      border:1px solid rgba(15,23,42,.12);
      background: rgba(255,255,255,.86);
      box-shadow: 0 18px 44px rgba(17,24,39,.14);
      cursor:pointer;
      display:flex; align-items:center; justify-content:center;
      transition: transform .18s ease, background .18s ease;
    }
    .to-top:hover{transform: translateY(-2px); background: rgba(255,255,255,.95)}
    .to-top svg{width:20px; height:20px}

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