:root{
      --bg0:#f7fbfb;
      --bg1:#f3f7ff;
      --card:#ffffff;
      --text:#101828;
      --muted:#5b667a;
      --line:rgba(16,24,40,.10);
      --shadow: 0 10px 30px rgba(16,24,40,.08);
      --shadow2: 0 12px 40px rgba(7, 56, 88, .12);
      --brand1:#0ea5e9;
      --brand2:#22c55e;
      --brand3:#2b6bff;
      --accent:#0b5cff;
      --accent2:#19c37d;
      --warn:#0f766e;
      --radius:16px;
      --radius2:22px;
      --container:1120px;
      --focus: 0 0 0 4px rgba(14,165,233,.25);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, "PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
      color:var(--text);
      background:
        radial-gradient(900px 500px at 20% -10%, rgba(14,165,233,.22), transparent 60%),
        radial-gradient(900px 520px at 85% 0%, rgba(43,107,255,.18), transparent 55%),
        radial-gradient(700px 480px at 70% 55%, rgba(34,197,94,.14), transparent 60%),
        linear-gradient(180deg, var(--bg0), #ffffff 60%);
      overflow-x:hidden;
    }
    a{color:inherit; text-decoration:none}
    .container{
      max-width: var(--container);
      margin:0 auto;
      padding: 0 18px;
    }
    .topbar{
      position:sticky;
      top:0;
      z-index:50;
      backdrop-filter: blur(10px);
      background: rgba(247,251,251,.72);
      border-bottom: 1px solid rgba(16,24,40,.08);
    }
    .topbar-inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding: 12px 0;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width: 190px;
    }
    .ai-page-logo{
      width: 38px;
      height: 38px;
      object-fit: contain;
      border-radius: 10px;
      background: rgba(255,255,255,.7);
      box-shadow: 0 6px 20px rgba(14,165,233,.12);
      flex:0 0 auto;
    }
    .brand-text{
      display:flex;
      flex-direction:column;
      line-height:1.1;
    }
    .brand-name{
      font-weight: 820;
      letter-spacing:.2px;
      font-size: 14px;
      color:#0b1b2b;
      display:flex;
      align-items:center;
      gap:8px;
      white-space:nowrap;
    }
    .brand-pill{
      font-size:12px;
      padding: 4px 10px;
      border-radius: 999px;
      background: linear-gradient(135deg, rgba(14,165,233,.16), rgba(43,107,255,.12));
      border: 1px solid rgba(14,165,233,.22);
      color:#0b5cff;
      font-weight: 700;
    }
    .brand-sub{
      font-size:12px;
      color: var(--muted);
      margin-top:4px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
      max-width: 210px;
    }
    nav{
      display:flex;
      align-items:center;
      gap:18px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .nav-links{
      display:flex;
      gap:14px;
      align-items:center;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .nav-link{
      font-size: 13px;
      color: #22314a;
      padding: 8px 10px;
      border-radius: 12px;
      transition: background .18s ease, transform .18s ease;
      border: 1px solid transparent;
    }
    .nav-link:hover{
      background: rgba(14,165,233,.08);
      border-color: rgba(14,165,233,.18);
      transform: translateY(-1px);
    }
    .nav-cta{
      display:flex;
      gap:10px;
      align-items:center;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      padding: 11px 14px;
      border-radius: 14px;
      border: 1px solid rgba(16,24,40,.12);
      background: rgba(255,255,255,.72);
      color:#0b1b2b;
      font-weight: 760;
      font-size: 13px;
      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 10px 22px rgba(16,24,40,.10);
      border-color: rgba(14,165,233,.35);
    }
    .btn:focus{outline:none; box-shadow: var(--focus)}
    .btn-primary{
      background: linear-gradient(135deg, rgba(11,92,255,1), rgba(14,165,233,.92));
      border-color: rgba(11,92,255,.28);
      color:#fff;
      box-shadow: 0 16px 35px rgba(11,92,255,.18);
    }
    .btn-primary:hover{
      box-shadow: 0 22px 48px rgba(11,92,255,.26);
      border-color: rgba(255,255,255,.25);
    }
    .btn-ghost{
      background: rgba(255,255,255,.55);
    }
    .icon{
      width:18px; height:18px; display:inline-block;
    }
    .hamburger{
      display:none;
      width: 42px;
      height: 42px;
      border-radius: 14px;
      border: 1px solid rgba(16,24,40,.12);
      background: rgba(255,255,255,.72);
      cursor:pointer;
      align-items:center;
      justify-content:center;
      transition: transform .18s ease, box-shadow .18s ease;
    }
    .hamburger:hover{transform: translateY(-1px); box-shadow: 0 10px 18px rgba(16,24,40,.10)}
    .hamburger:focus{outline:none; box-shadow: var(--focus)}
    .hamburger-lines{
      width:18px; height:14px; position:relative;
    }
    .hamburger-lines span{
      position:absolute; left:0; right:0; height:2px;
      background:#1f2a44; border-radius:2px;
      transition: transform .2s ease, top .2s ease, opacity .2s ease;
    }
    .hamburger-lines span:nth-child(1){top:1px}
    .hamburger-lines span:nth-child(2){top:6px}
    .hamburger-lines span:nth-child(3){top:11px}
    .mobile-panel{
      display:none;
      padding-bottom: 14px;
    }
    .mobile-panel.open{display:block}
    .mobile-links{
      display:flex;
      flex-direction:column;
      gap:10px;
      padding-top: 10px;
    }
    .mobile-links .nav-link{
      padding: 12px 12px;
      border: 1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.65);
    }

    .hero{
      padding: 40px 0 26px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns: 1.2fr .8fr;
      gap: 18px;
      align-items:stretch;
    }
    .hero-card{
      background:
        radial-gradient(900px 400px at 15% 0%, rgba(14,165,233,.22), transparent 55%),
        radial-gradient(650px 300px at 80% 20%, rgba(43,107,255,.16), transparent 55%),
        linear-gradient(180deg, rgba(255,255,255,.85), rgba(255,255,255,.75));
      border: 1px solid rgba(14,165,233,.20);
      border-radius: var(--radius2);
      box-shadow: var(--shadow);
      padding: 22px;
      position:relative;
      overflow:hidden;
    }
    .hero-card::after{
      content:"";
      position:absolute;
      inset:-2px;
      background:
        linear-gradient(135deg, rgba(14,165,233,.16), rgba(34,197,94,.10), rgba(43,107,255,.12));
      filter: blur(22px);
      opacity:.55;
      pointer-events:none;
      transform: translate3d(0,0,0);
    }
    .hero-card > *{position:relative; z-index:1}
    .kicker{
      display:flex;
      align-items:center;
      gap:10px;
      color:#0b5cff;
      font-weight: 780;
      font-size: 13px;
      letter-spacing:.2px;
    }
    .kicker-dot{
      width:10px; height:10px; border-radius:50%;
      background: linear-gradient(135deg, var(--brand1), var(--brand3));
      box-shadow: 0 10px 20px rgba(11,92,255,.24);
    }
    h1{
      margin: 14px 0 10px;
      font-size: clamp(22px, 3.1vw, 38px);
      line-height: 1.15;
      letter-spacing: -0.6px;
    }
    .hero-lead{
      margin: 0;
      color: var(--muted);
      font-size: 14.5px;
      line-height: 1.65;
      max-width: 62ch;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      align-items:center;
      margin-top: 16px;
    }
    .mini-row{
      display:flex;
      gap:10px;
      align-items:center;
      flex-wrap:wrap;
      margin-top: 14px;
    }
    .chip{
      display:inline-flex;
      gap:8px;
      align-items:center;
      padding: 8px 10px;
      border-radius: 999px;
      background: rgba(255,255,255,.65);
      border: 1px solid rgba(16,24,40,.10);
      color:#1f2a44;
      font-weight: 720;
      font-size: 12.5px;
    }
    .chip svg{opacity:.95}
    .hero-side{
      border-radius: var(--radius2);
      border: 1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.70);
      box-shadow: 0 16px 35px rgba(16,24,40,.08);
      padding: 18px;
      display:flex;
      flex-direction:column;
      gap:12px;
      position:relative;
      overflow:hidden;
    }
    .hero-side::before{
      content:"";
      position:absolute;
      left:-60px;
      top:-80px;
      width:220px;
      height:220px;
      border-radius:50%;
      background: radial-gradient(circle at 30% 30%, rgba(14,165,233,.35), transparent 60%);
      filter: blur(2px);
      pointer-events:none;
    }
    .hero-side > *{position:relative; z-index:1}
    .side-title{
      font-size:14px;
      font-weight: 850;
      margin: 4px 0 0;
      letter-spacing:.1px;
      display:flex;
      align-items:center;
      gap:10px;
    }
    .side-sub{
      color: var(--muted);
      font-size: 13px;
      line-height: 1.6;
      margin:0;
    }
    .stat-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
      margin-top:auto;
    }
    .stat{
      padding: 12px 12px;
      border-radius: 16px;
      border: 1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.62);
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
      min-height: 84px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      gap:10px;
    }
    .stat:hover{
      transform: translateY(-2px);
      box-shadow: 0 18px 38px rgba(11,92,255,.14);
      border-color: rgba(14,165,233,.28);
    }
    .stat .num{
      font-weight: 900;
      font-size: 18px;
      letter-spacing:-.2px;
    }
    .stat .lab{
      color: var(--muted);
      font-weight: 650;
      font-size: 12.5px;
      line-height:1.2;
    }

    .section{
      padding: 24px 0;
    }
    .section-title{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:14px;
      margin-bottom: 14px;
    }
    .section-title h2{
      margin:0;
      font-size: 20px;
      letter-spacing:-.3px;
    }
    .section-title p{
      margin:0;
      color: var(--muted);
      font-size: 13.5px;
      line-height: 1.6;
      max-width: 60ch;
    }
    .grid-3{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
    }
    .grid-2{
      display:grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
    }
    .card{
      background: rgba(255,255,255,.74);
      border: 1px solid rgba(16,24,40,.10);
      border-radius: var(--radius);
      box-shadow: 0 12px 30px rgba(16,24,40,.06);
      padding: 16px;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .card:hover{
      transform: translateY(-2px);
      box-shadow: 0 18px 42px rgba(16,24,40,.10);
      border-color: rgba(14,165,233,.26);
    }
    .card h3{
      margin: 10px 0 6px;
      font-size: 15px;
      letter-spacing:-.2px;
    }
    .card p{
      margin: 0;
      color: var(--muted);
      font-size: 13.5px;
      line-height: 1.7;
    }
    .card .badge{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding: 7px 10px;
      border-radius: 999px;
      background: rgba(14,165,233,.10);
      border: 1px solid rgba(14,165,233,.20);
      color:#0b5cff;
      font-weight: 800;
      font-size: 12px;
    }

    .timeline{
      display:grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 12px;
      align-items:stretch;
    }
    .step{
      position:relative;
      overflow:hidden;
      padding: 14px;
      border-radius: var(--radius);
      border: 1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.72);
      box-shadow: 0 10px 26px rgba(16,24,40,.06);
      display:flex;
      flex-direction:column;
      gap:10px;
      min-height: 150px;
    }
    .step::before{
      content:"";
      position:absolute;
      width: 180px;
      height: 180px;
      border-radius: 50%;
      left:-90px;
      top:-120px;
      background: radial-gradient(circle at 30% 30%, rgba(43,107,255,.18), transparent 60%);
      pointer-events:none;
    }
    .step > *{position:relative; z-index:1}
    .step-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
    }
    .step-num{
      font-weight: 950;
      color:#0b1b2b;
      font-size: 18px;
      letter-spacing:-.2px;
    }
    .step-tag{
      font-size: 12px;
      font-weight: 850;
      padding: 6px 10px;
      border-radius: 999px;
      border: 1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.62);
      color:#22314a;
      white-space:nowrap;
    }
    .step h3{margin:0; font-size: 14.8px; letter-spacing:-.2px}
    .step p{margin:0; color:var(--muted); font-size: 13.3px; line-height:1.65}

    .compare-wrap{
      border-radius: var(--radius2);
      border: 1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.72);
      box-shadow: 0 14px 38px rgba(16,24,40,.07);
      overflow:hidden;
    }
    .compare-head{
      padding: 16px;
      border-bottom: 1px solid rgba(16,24,40,.08);
      background:
        radial-gradient(800px 220px at 15% 0%, rgba(14,165,233,.20), transparent 55%),
        linear-gradient(180deg, rgba(255,255,255,.85), rgba(255,255,255,.72));
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:14px;
      flex-wrap:wrap;
    }
    .rating{
      display:flex;
      align-items:flex-start;
      gap:12px;
    }
    .stars{
      display:flex;
      gap:4px;
      margin-top: 4px;
    }
    .star{
      width:18px; height:18px;
      fill:#0b5cff;
      filter: drop-shadow(0 6px 12px rgba(11,92,255,.18));
    }
    .rating .score{
      font-weight: 980;
      font-size: 30px;
      letter-spacing:-.8px;
      line-height:1;
    }
    .rating .score-sub{
      color: var(--muted);
      font-weight: 720;
      font-size: 13px;
      margin-top: 6px;
      line-height:1.2;
    }
    .compare-meta{
      display:flex; gap:10px; flex-wrap:wrap; align-items:center;
      color: var(--muted);
      font-size: 13px;
      line-height:1.5;
    }
    .meter{
      display:flex; gap:8px; align-items:center;
      padding: 8px 10px;
      border-radius: 999px;
      border: 1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.60);
      font-weight: 750;
      color:#22314a;
    }
    .compare-table{
      width:100%;
      border-collapse: collapse;
      font-size: 13.5px;
      color:#1f2a44;
      min-width: 740px;
    }
    .compare-table th, .compare-table td{
      border-bottom: 1px solid rgba(16,24,40,.08);
      padding: 12px 12px;
      text-align:left;
      vertical-align:top;
    }
    .compare-table th{
      background: rgba(14,165,233,.06);
      font-weight: 900;
      color:#0b1b2b;
    }
    .compare-table td strong{font-weight: 900}
    .tag-ok{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding: 6px 10px;
      border-radius: 999px;
      border: 1px solid rgba(25,195,125,.22);
      background: rgba(25,195,125,.10);
      color:#0f766e;
      font-weight: 900;
      white-space:nowrap;
    }
    .tag-mid{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding: 6px 10px;
      border-radius: 999px;
      border: 1px solid rgba(11,92,255,.20);
      background: rgba(11,92,255,.10);
      color:#1d4ed8;
      font-weight: 900;
      white-space:nowrap;
    }
    .tag-none{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding: 6px 10px;
      border-radius: 999px;
      border: 1px solid rgba(16,24,40,.12);
      background: rgba(16,24,40,.04);
      color:#475569;
      font-weight: 900;
      white-space:nowrap;
    }
    .table-scroll{
      overflow:auto;
    }

    .faq{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }
    details.faq-item{
      border-radius: var(--radius);
      border: 1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.72);
      box-shadow: 0 10px 26px rgba(16,24,40,.05);
      padding: 12px 12px;
      overflow:hidden;
      transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
    }
    details.faq-item[open]{
      border-color: rgba(14,165,233,.26);
      box-shadow: 0 18px 42px rgba(11,92,255,.14);
      transform: translateY(-2px);
    }
    summary{
      cursor:pointer;
      list-style:none;
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:12px;
      padding: 2px 2px;
      user-select:none;
    }
    summary::-webkit-details-marker{display:none}
    .faq-q{
      font-weight: 900;
      letter-spacing:-.2px;
      font-size: 14px;
      line-height:1.45;
      color:#0b1b2b;
    }
    .faq-icon{
      width: 18px;
      height: 18px;
      flex:0 0 auto;
      margin-top: 2px;
      color:#0b5cff;
      transition: transform .2s ease;
    }
    details[open] .faq-icon{transform: rotate(45deg)}
    .faq-a{
      margin-top: 10px;
      color: var(--muted);
      font-size: 13.5px;
      line-height: 1.75;
      padding-right: 6px;
    }

    .reviews{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
    }
    .review{
      padding: 16px;
      border-radius: var(--radius);
      border: 1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.72);
      box-shadow: 0 12px 30px rgba(16,24,40,.06);
      display:flex;
      flex-direction:column;
      gap:12px;
      min-height: 190px;
    }
    .review-top{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
    }
    .avatar{
      width: 40px; height: 40px;
      border-radius: 14px;
      background: linear-gradient(135deg, rgba(14,165,233,.20), rgba(43,107,255,.12));
      border: 1px solid rgba(14,165,233,.20);
      display:flex; align-items:center; justify-content:center;
      color:#0b5cff; font-weight: 950;
      letter-spacing:-.2px;
    }
    .review-role{
      font-weight: 900;
      color:#0b1b2b;
      font-size: 13.5px;
      margin:0;
    }
    .review-stamp{
      color: var(--muted);
      font-size: 12px;
      font-weight: 750;
      padding: 6px 10px;
      border-radius: 999px;
      border: 1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.60);
      white-space:nowrap;
    }
    .review p{
      margin:0;
      color: var(--muted);
      font-size: 13.5px;
      line-height: 1.75;
    }

    .articles{
      display:grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 14px;
      align-items:start;
    }
    .article-list{
      display:flex;
      flex-direction:column;
      gap:10px;
    }
    .article{
      padding: 14px;
      border-radius: var(--radius);
      border: 1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.72);
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:12px;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .article:hover{
      transform: translateY(-2px);
      box-shadow: 0 18px 42px rgba(16,24,40,.10);
      border-color: rgba(14,165,233,.26);
    }
    .article strong{
      font-size: 14px;
      letter-spacing:-.2px;
      display:block;
      margin-bottom: 6px;
    }
    .article span{
      color: var(--muted);
      font-size: 13px;
      line-height: 1.6;
      display:block;
    }
    .article a{
      color:#0b5cff;
      font-weight: 900;
      font-size: 13px;
      padding: 8px 10px;
      border-radius: 12px;
      background: rgba(11,92,255,.07);
      border: 1px solid rgba(11,92,255,.16);
      white-space:nowrap;
      margin-top: 2px;
      transition: transform .18s ease, background .18s ease;
    }
    .article a:hover{transform: translateY(-1px); background: rgba(11,92,255,.10)}
    .right-rail{
      padding: 16px;
      border-radius: var(--radius2);
      border: 1px solid rgba(16,24,40,.10);
      background:
        radial-gradient(700px 220px at 20% 0%, rgba(14,165,233,.18), transparent 55%),
        linear-gradient(180deg, rgba(255,255,255,.82), rgba(255,255,255,.70));
      box-shadow: 0 14px 38px rgba(16,24,40,.07);
    }
    .right-rail h3{
      margin: 6px 0 6px;
      font-size: 15px;
      letter-spacing:-.2px;
    }
    .right-rail p{
      margin:0;
      color: var(--muted);
      font-size: 13.5px;
      line-height: 1.75;
    }
    .tagcloud{
      display:flex; flex-wrap:wrap; gap:8px;
      margin-top: 12px;
    }
    .tagcloud .t{
      font-size: 12.5px;
      font-weight: 820;
      padding: 7px 10px;
      border-radius: 999px;
      border: 1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.62);
      color:#22314a;
    }

    .form-card{
      border-radius: var(--radius2);
      border: 1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.76);
      box-shadow: 0 16px 40px rgba(16,24,40,.08);
      overflow:hidden;
    }
    .form-head{
      padding: 16px;
      background:
        radial-gradient(800px 280px at 10% 0%, rgba(14,165,233,.22), transparent 55%),
        radial-gradient(650px 260px at 95% 10%, rgba(34,197,94,.14), transparent 55%),
        linear-gradient(180deg, rgba(255,255,255,.88), rgba(255,255,255,.72));
      border-bottom: 1px solid rgba(16,24,40,.08);
    }
    .form-head h2{margin:0; font-size: 20px; letter-spacing:-.3px}
    .form-head p{margin:8px 0 0; color: var(--muted); font-size: 13.5px; line-height:1.7}
    form{
      padding: 16px;
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }
    .field{
      display:flex;
      flex-direction:column;
      gap:8px;
    }
    .field.full{grid-column: 1 / -1}
    label{
      font-size: 13px;
      color:#22314a;
      font-weight: 850;
    }
    input, select, textarea{
      width:100%;
      padding: 12px 12px;
      border-radius: 14px;
      border: 1px solid rgba(16,24,40,.14);
      background: rgba(255,255,255,.82);
      color:#0b1b2b;
      font-size: 14px;
      outline:none;
      transition: box-shadow .18s ease, border-color .18s ease;
    }
    textarea{min-height: 120px; resize: vertical}
    input:focus, select:focus, textarea:focus{
      border-color: rgba(14,165,233,.45);
      box-shadow: var(--focus);
    }
    .form-actions{
      grid-column: 1 / -1;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      flex-wrap:wrap;
      margin-top: 2px;
    }
    .form-hint{
      color: var(--muted);
      font-size: 12.8px;
      line-height:1.6;
      display:flex; align-items:center; gap:10px;
      max-width: 62ch;
    }
    .hint-dot{
      width:10px; height:10px; border-radius: 50%;
      background: linear-gradient(135deg, rgba(34,197,94,.9), rgba(14,165,233,.85));
      box-shadow: 0 10px 20px rgba(34,197,94,.18);
      flex:0 0 auto;
    }

    .contact-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      align-items:stretch;
    }
    .contact-card{
      padding: 16px;
      border-radius: var(--radius2);
      border: 1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.72);
      box-shadow: 0 14px 38px rgba(16,24,40,.07);
      display:flex;
      flex-direction:column;
      gap: 12px;
      overflow:hidden;
      position:relative;
    }
    .contact-card::before{
      content:"";
      position:absolute;
      right:-100px;
      top:-120px;
      width:240px;
      height:240px;
      border-radius:50%;
      background: radial-gradient(circle at 30% 30%, rgba(11,92,255,.18), transparent 60%);
      pointer-events:none;
    }
    .contact-card > *{position:relative; z-index:1}
    .contact-card h3{margin:0; font-size: 16px; letter-spacing:-.2px}
    .contact-row{
      display:flex; gap:12px; flex-wrap:wrap;
      align-items:center;
      color: var(--muted);
      font-size: 13.5px;
      line-height: 1.7;
    }
    .contact-row strong{color:#0b1b2b}
    .wechat-wrap{
      display:flex; gap:12px; align-items:flex-start; flex-wrap:wrap;
    }
    .qrcode{
      width: 110px;
      height:auto;
      border-radius: 16px;
      border: 1px solid rgba(16,24,40,.12);
      background: rgba(255,255,255,.78);
      padding: 6px;
      box-shadow: 0 14px 34px rgba(16,24,40,.10);
    }
    .links-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
      margin-top: 2px;
    }
    .mini-link{
      display:flex; align-items:center; justify-content:space-between;
      gap:10px;
      padding: 12px;
      border-radius: 16px;
      border: 1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.62);
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .mini-link:hover{
      transform: translateY(-2px);
      border-color: rgba(14,165,233,.26);
      box-shadow: 0 18px 42px rgba(16,24,40,.10);
    }
    .mini-link b{font-size: 13.5px}
    .mini-link i{
      width: 30px; height: 30px;
      border-radius: 12px;
      background: rgba(11,92,255,.08);
      border: 1px solid rgba(11,92,255,.16);
      color:#0b5cff;
      display:flex; align-items:center; justify-content:center;
      font-style:normal;
      font-weight: 1000;
    }

    .footer{
      margin-top: 10px;
      background: #0b1220;
      color: rgba(255,255,255,.88);
      border-top: 1px solid rgba(255,255,255,.10);
    }
    .footer .container{padding: 22px 18px}
    .footer-grid{
      display:grid;
      grid-template-columns: 1.2fr .8fr;
      gap: 16px;
      align-items:start;
    }
    .footer-brand{
      display:flex;
      gap:12px;
      align-items:flex-start;
    }
    .footer-logo{
      width: 44px;
      height: 44px;
      border-radius: 16px;
      background: rgba(255,255,255,.06);
      border: 1px solid rgba(255,255,255,.12);
      display:flex;
      align-items:center;
      justify-content:center;
      overflow:hidden;
    }
    .footer-logo img{
      width: 34px;
      height: 34px;
      object-fit: contain;
    }
    .footer h3{
      margin: 0 0 6px;
      font-size: 15px;
      letter-spacing:-.2px;
    }
    .footer p{
      margin:0;
      color: rgba(255,255,255,.74);
      font-size: 13.5px;
      line-height: 1.7;
    }
    .footer-links{
      display:flex;
      flex-direction:column;
      gap: 10px;
    }
    .footer-links .label{
      color: rgba(255,255,255,.78);
      font-weight: 900;
      font-size: 13px;
    }
    .footer-link-row{
      display:flex;
      flex-wrap:wrap;
      gap: 10px;
      margin-top: 6px;
    }
    .footer-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding: 10px 12px;
      border-radius: 14px;
      border: 1px solid rgba(255,255,255,.12);
      background: rgba(255,255,255,.06);
      color: rgba(255,255,255,.90);
      font-weight: 850;
      font-size: 13px;
      transition: transform .18s ease, background .18s ease, border-color .18s ease;
      white-space:nowrap;
    }
    .footer-link:hover{
      transform: translateY(-2px);
      background: rgba(255,255,255,.10);
      border-color: rgba(14,165,233,.35);
    }
    .copyright{
      margin-top: 16px;
      padding-top: 14px;
      border-top: 1px solid rgba(255,255,255,.12);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      flex-wrap:wrap;
      color: rgba(255,255,255,.70);
      font-size: 12.8px;
    }
    .copyright .right{
      display:flex; gap:12px; flex-wrap:wrap; align-items:center;
    }
    .small-a{
      color: rgba(255,255,255,.78);
      text-decoration: underline;
      text-underline-offset: 3px;
    }

    .floating{
      position:fixed;
      right: 14px;
      bottom: 16px;
      z-index:80;
      display:flex;
      flex-direction:column;
      gap:10px;
      align-items:flex-end;
    }
    .float-btn{
      display:inline-flex;
      align-items:center;
      gap:10px;
      padding: 12px 14px;
      border-radius: 18px;
      border: 1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.75);
      box-shadow: 0 18px 44px rgba(16,24,40,.16);
      cursor:pointer;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
      user-select:none;
      max-width: 260px;
    }
    .float-btn:hover{
      transform: translateY(-2px);
      border-color: rgba(14,165,233,.30);
      box-shadow: 0 22px 52px rgba(11,92,255,.18);
    }
    .float-btn:focus{outline:none; box-shadow: var(--focus)}
    .float-title{
      display:flex; flex-direction:column; gap:2px;
      line-height:1.15;
    }
    .float-title b{
      font-size: 13.5px;
      letter-spacing:-.2px;
    }
    .float-title span{
      color: var(--muted);
      font-size: 12.5px;
      font-weight: 720;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
      max-width: 150px;
    }
    .float-dot{
      width: 10px; height: 10px; border-radius:50%;
      background: linear-gradient(135deg, rgba(14,165,233,.95), rgba(43,107,255,.95));
      box-shadow: 0 10px 20px rgba(11,92,255,.22);
      flex:0 0 auto;
    }
    .float-qr{
      width: 170px;
      padding: 10px;
      border-radius: 20px;
      border: 1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.82);
      box-shadow: 0 20px 60px rgba(16,24,40,.18);
      display:none;
    }
    .float-qr.open{display:block}
    .float-qr img{
      width: 100%;
      height:auto;
      border-radius: 16px;
      border: 1px solid rgba(16,24,40,.10);
      background:#fff;
      padding: 4px;
    }
    .float-qr .cap{
      margin-top: 8px;
      color: var(--muted);
      font-size: 12.6px;
      font-weight: 760;
      text-align:center;
    }

    .reveal{
      opacity:0;
      transform: translateY(14px);
      transition: opacity .6s ease, transform .6s ease;
    }
    .reveal.in{
      opacity:1;
      transform: translateY(0);
    }

    @media (max-width: 980px){
      .hero-grid{grid-template-columns: 1fr; }
      .nav-links{display:none}
      .hamburger{display:flex}
      .mobile-panel{display:block}
      .grid-3{grid-template-columns: 1fr}
      .grid-2{grid-template-columns: 1fr}
      .timeline{grid-template-columns: 1fr 1fr}
      .faq{grid-template-columns: 1fr}
      .reviews{grid-template-columns: 1fr}
      .articles{grid-template-columns: 1fr}
      .contact-grid{grid-template-columns: 1fr}
      form{grid-template-columns: 1fr}
      .stat-grid{grid-template-columns: 1fr 1fr}
      .footer-grid{grid-template-columns: 1fr}
      .floating{right:10px}
    }