:root{
    --ink:#151129;
    --ink2:#3d3660;
    --ink3:#6b6489;
    --line:rgba(124,58,237,.14);
    --violet:#7c3aed;
    --magenta:#ff2e88;
    --cyan:#0ea5e9;
    --amber:#f59e0b;
    --radius:18px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{background:#fbfaff;scroll-behavior:smooth}
  body{
    margin:0;
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
    color:var(--ink);
    line-height:1.65;
    -webkit-font-smoothing:antialiased;
  }
  body::before{
    content:"";
    position:fixed;
    inset:0;
    z-index:-1;
    pointer-events:none;
    background:
      radial-gradient(900px 620px at 8% -6%, rgba(124,58,237,.16), transparent 62%),
      radial-gradient(900px 600px at 96% 2%, rgba(255,46,136,.14), transparent 62%),
      radial-gradient(900px 700px at 50% 108%, rgba(14,165,233,.12), transparent 66%),
      linear-gradient(180deg,#ffffff 0%,#fbf8ff 42%,#fff6fb 100%);
  }
  img{max-width:100%;height:auto;display:block}
  a{color:inherit}
  .container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
  section[id]{scroll-margin-top:86px}

  /* header */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(255,255,255,.88);
    backdrop-filter:saturate(180%) blur(14px);
    border-bottom:1px solid rgba(124,58,237,.12);
  }
  .header-inner{
    display:flex;align-items:center;justify-content:space-between;
    gap:16px;min-height:68px;position:relative;
  }
  .brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);flex:0 0 auto}
  .ai-page-logo{width:34px;height:34px;object-fit:contain}
  .brand-name{font-weight:800;font-size:17px;letter-spacing:.5px;white-space:nowrap}
  .nav-links{
    display:flex;align-items:center;justify-content:flex-end;
    gap:0;flex-wrap:nowrap;
  }
  .nav-links a{
    display:block;
    padding:8px 11px;
    font-size:14px;
    font-weight:600;
    color:#39325c;
    text-decoration:none;
    border-radius:9px;
    white-space:nowrap;
    transition:color .2s ease, background .2s ease;
  }
  .nav-links a:hover{color:var(--magenta);background:rgba(255,46,136,.08)}
  .nav-toggle{
    display:none;width:42px;height:42px;border-radius:12px;
    border:1px solid rgba(124,58,237,.24);background:#fff;cursor:pointer;
    align-items:center;justify-content:center;flex-direction:column;gap:5px;padding:0;
  }
  .nav-toggle span{display:block;width:18px;height:2px;background:#3a2f6b;border-radius:2px;transition:transform .25s ease,opacity .25s ease}
  .nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle.is-open span:nth-child(2){opacity:0}
  .nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

  /* buttons */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:13px 28px;border-radius:999px;font-size:15px;font-weight:700;
    text-decoration:none;border:1px solid transparent;cursor:pointer;
    transition:transform .22s ease, box-shadow .26s ease, background .22s ease, color .22s ease, border-color .22s ease;
    font-family:inherit;
  }
  .btn-primary{
    background:linear-gradient(120deg,#6d28d9 0%,#a12ee0 50%,#ff2e88 100%);
    color:#fff;
    box-shadow:0 18px 32px -16px rgba(124,58,237,.9);
  }
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 24px 40px -16px rgba(255,46,136,.75)}
  .btn-primary:active{transform:translateY(0) scale(.98)}
  .btn-ghost{
    background:#fff;color:#2b2350;border-color:rgba(124,58,237,.3);
    box-shadow:0 12px 26px -20px rgba(30,20,80,.9);
  }
  .btn-ghost:hover{border-color:var(--violet);color:var(--violet);transform:translateY(-2px)}
  .btn-light{background:#fff;color:#4c1d95;box-shadow:0 16px 30px -18px rgba(20,10,50,.8)}
  .btn-light:hover{transform:translateY(-2px)}

  /* hero */
  .hero{position:relative;overflow:hidden;padding:70px 0 78px}
  .hero::before{
    content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
    background:
      radial-gradient(560px 340px at 4% 0%, rgba(124,58,237,.20), transparent 70%),
      radial-gradient(560px 360px at 92% 8%, rgba(255,46,136,.18), transparent 70%),
      radial-gradient(520px 340px at 55% 108%, rgba(14,165,233,.16), transparent 72%);
  }
  .hero-inner{
    position:relative;z-index:1;
    display:grid;grid-template-columns:1.12fr .88fr;gap:48px;align-items:center;
  }
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    padding:7px 16px;border-radius:999px;
    background:linear-gradient(120deg,rgba(124,58,237,.12),rgba(255,46,136,.12));
    border:1px solid rgba(124,58,237,.24);
    font-size:13px;font-weight:700;color:#5b23c0;letter-spacing:.4px;
  }
  .hero h1{
    font-size:clamp(30px,4.4vw,50px);
    line-height:1.16;
    letter-spacing:-1px;
    margin:18px 0 16px;
    font-weight:800;
    color:#130f27;
  }
  .h1-accent{color:var(--magenta)}
  .hero-sub{
    margin:0 0 26px;font-size:16px;color:#4d4672;max-width:560px;
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px}
  .hero-metrics{display:grid;grid-template-columns:1fr 1fr;gap:14px}
  .metric{
    padding:20px 18px;border-radius:16px;background:#fff;
    border:1px solid rgba(124,58,237,.14);
    box-shadow:0 22px 42px -34px rgba(56,20,120,.95);
    transition:transform .26s ease, box-shadow .26s ease, border-color .26s ease;
  }
  .metric:hover{transform:translateY(-5px);box-shadow:0 28px 48px -30px rgba(56,20,120,.85);border-color:rgba(255,46,136,.3)}
  .metric b{display:block;font-size:26px;font-weight:800;line-height:1.1;letter-spacing:-.6px;color:var(--violet)}
  .metric:nth-child(2) b{color:var(--magenta)}
  .metric:nth-child(3) b{color:var(--cyan)}
  .metric:nth-child(4) b{color:var(--amber)}
  .metric span{display:block;margin-top:6px;font-size:13.5px;color:#5e5786}

  /* sections */
  .section{padding:74px 0}
  .section-head{max-width:760px;margin:0 auto 42px;text-align:center}
  .kicker{
    display:inline-block;padding:5px 14px;border-radius:999px;
    font-size:12.5px;font-weight:800;letter-spacing:1.6px;color:#8b1b58;
    background:linear-gradient(120deg,rgba(255,46,136,.14),rgba(124,58,237,.14));
    border:1px solid rgba(255,46,136,.22);
  }
  .section-head h2{
    font-size:clamp(22px,2.9vw,33px);
    line-height:1.28;letter-spacing:-.6px;
    margin:14px 0 12px;font-weight:800;color:#130f27;
  }
  .section-head p{margin:0;color:var(--ink3);font-size:15.5px}

  /* cards & grids */
  .card{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    padding:24px;
    box-shadow:0 20px 44px -34px rgba(50,20,120,.7);
    transition:transform .26s ease, box-shadow .26s ease, border-color .26s ease;
  }
  .card:hover{transform:translateY(-5px);box-shadow:0 28px 54px -32px rgba(80,30,160,.65);border-color:rgba(255,46,136,.32)}
  .card h3{margin:0 0 10px;font-size:17.5px;font-weight:800;color:#170f33;letter-spacing:-.2px}
  .card p{margin:0;color:#59527d;font-size:14.5px}
  .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
  .grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
  .tag-pill{
    display:inline-block;padding:4px 12px;border-radius:999px;
    font-size:12px;font-weight:700;letter-spacing:.3px;
    color:#7a1b4f;background:rgba(255,46,136,.1);border:1px solid rgba(255,46,136,.22);
    margin-bottom:12px;
  }
  .tag-pill.v2{color:#4c1d95;background:rgba(124,58,237,.1);border-color:rgba(124,58,237,.24)}
  .tag-pill.v3{color:#0b5c86;background:rgba(14,165,233,.1);border-color:rgba(14,165,233,.24)}
  .tag-pill.v4{color:#8a5a05;background:rgba(245,158,11,.12);border-color:rgba(245,158,11,.28)}

  /* about */
  .about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:start}
  .about-text p{color:#4d4672;font-size:15.5px;margin:0 0 16px}
  .about-text p:last-child{margin-bottom:0}
  .about-aside{
    background:linear-gradient(160deg,#ffffff,#fbf5ff);
    border:1px solid var(--line);border-radius:var(--radius);
    padding:26px;box-shadow:0 24px 50px -38px rgba(60,20,130,.8);
  }
  .about-aside h3{margin:0 0 16px;font-size:16.5px;font-weight:800;color:#170f33}
  .feature-list{list-style:none;margin:0;padding:0;display:grid;gap:12px}
  .feature-list li{
    display:flex;gap:10px;align-items:flex-start;
    font-size:14.5px;color:#4b4470;
  }
  .feature-list li::before{
    content:"";flex:0 0 auto;width:8px;height:8px;margin-top:8px;border-radius:50%;
    background:linear-gradient(120deg,var(--violet),var(--magenta));
  }
  .model-cloud{margin-top:36px;text-align:center}
  .model-cloud h3{font-size:15.5px;font-weight:800;color:#332b58;margin:0 0 16px;letter-spacing:.4px}
  .tags{display:flex;flex-wrap:wrap;gap:9px;justify-content:center}
  .tags span{
    padding:7px 14px;border-radius:11px;font-size:13px;font-weight:600;
    color:#42396e;background:#fff;border:1px solid rgba(124,58,237,.16);
    box-shadow:0 10px 22px -20px rgba(50,20,120,.9);
    transition:transform .2s ease, color .2s ease, border-color .2s ease;
  }
  .tags span:hover{transform:translateY(-3px);color:var(--magenta);border-color:rgba(255,46,136,.4)}

  /* studio media */
  .studio-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}
  .media-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    padding:14px;box-shadow:0 22px 46px -36px rgba(50,20,120,.85);
    transition:transform .26s ease, box-shadow .26s ease;
  }
  .media-card:hover{transform:translateY(-5px);box-shadow:0 30px 56px -34px rgba(80,30,160,.7)}
  .media-card img{width:100%;border-radius:12px;background:#f7f3ff;object-fit:contain}
  .media-card figcaption{margin-top:12px;font-size:13.5px;font-weight:700;color:#4c4374;text-align:center}
  .studio-notes{background:linear-gradient(160deg,#ffffff,#f5f0ff);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
  .studio-notes h3{margin:0 0 14px;font-size:17.5px;font-weight:800;color:#170f33}
  .studio-notes ul{list-style:none;margin:0;padding:0;display:grid;gap:12px}
  .studio-notes li{font-size:14.5px;color:#4b4470;padding-left:18px;position:relative}
  .studio-notes li::before{
    content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:2px;
    background:linear-gradient(120deg,var(--cyan),var(--violet));
  }

  /* network band */
  .network-band{
    background:linear-gradient(120deg,rgba(255,46,136,.09),rgba(124,58,237,.12) 55%,rgba(14,165,233,.1));
    border:1px solid rgba(124,58,237,.18);
    border-radius:22px;padding:32px 30px;
    display:grid;grid-template-columns:1.05fr 1.35fr;gap:26px;align-items:center;
  }
  .network-band h2{margin:0 0 10px;font-size:clamp(20px,2.4vw,26px);font-weight:800;letter-spacing:-.5px;color:#1a1236}
  .network-band p{margin:0;font-size:14.5px;color:#4d4672}
  .region-tags{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-start}
  .region-tags span{
    padding:8px 15px;border-radius:11px;font-size:13.5px;font-weight:700;
    color:#3c2f74;background:#fff;border:1px solid rgba(124,58,237,.2);
    box-shadow:0 12px 24px -22px rgba(50,20,120,.9);
  }

  /* process */
  .steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
  .step{
    position:relative;background:#fff;border:1px solid var(--line);border-radius:16px;
    padding:24px 22px 22px;box-shadow:0 20px 44px -36px rgba(50,20,120,.85);
    transition:transform .26s ease, box-shadow .26s ease, border-color .26s ease;
  }
  .step:hover{transform:translateY(-5px);border-color:rgba(255,46,136,.32);box-shadow:0 28px 52px -32px rgba(80,30,160,.7)}
  .step-num{
    display:inline-flex;align-items:center;justify-content:center;
    width:36px;height:36px;border-radius:12px;margin-bottom:14px;
    font-size:15px;font-weight:800;color:#fff;
    background:linear-gradient(120deg,#6d28d9,#ff2e88);
    box-shadow:0 12px 24px -14px rgba(124,58,237,.9);
  }
  .step:nth-child(2) .step-num{background:linear-gradient(120deg,#ff2e88,#f59e0b)}
  .step:nth-child(3) .step-num{background:linear-gradient(120deg,#0ea5e9,#7c3aed)}
  .step:nth-child(4) .step-num{background:linear-gradient(120deg,#7c3aed,#0ea5e9)}
  .step:nth-child(5) .step-num{background:linear-gradient(120deg,#f59e0b,#ff2e88)}
  .step:nth-child(6) .step-num{background:linear-gradient(120deg,#10b981,#0ea5e9)}
  .step h3{margin:0 0 8px;font-size:16.5px;font-weight:800;color:#170f33}
  .step p{margin:0;font-size:14px;color:#59527d}

  /* cases */
  .case-card{padding:0;overflow:hidden}
  .case-card img{width:100%;border-radius:0;background:#f7f3ff;object-fit:contain}
  .case-body{padding:22px 24px 24px}
  .case-body h3{margin:0 0 8px;font-size:17px;font-weight:800;color:#170f33}
  .case-body p{margin:0;font-size:14.5px;color:#59527d}

  /* review */
  .review-band{
    display:grid;grid-template-columns:280px 1fr;gap:26px;align-items:center;
    background:linear-gradient(140deg,#ffffff,#fdf2ff 60%,#f2f7ff);
    border:1px solid rgba(124,58,237,.2);border-radius:22px;
    padding:30px;margin-bottom:26px;
    box-shadow:0 26px 54px -40px rgba(60,20,130,.9);
  }
  .review-score{text-align:center;padding:8px 0;border-right:1px dashed rgba(124,58,237,.25)}
  .review-score .score-label{display:block;font-size:13px;font-weight:700;color:#6b6489;letter-spacing:1.2px}
  .review-score strong{
    display:inline-block;font-size:52px;line-height:1.1;letter-spacing:-2px;
    font-weight:800;color:var(--magenta);
  }
  .review-score .score-full{font-size:16px;font-weight:700;color:#8a83a8}
  .stars{font-size:19px;letter-spacing:4px;color:#f59e0b;margin-top:6px}
  .review-score p{margin:6px 0 0;font-size:13.5px;font-weight:700;color:#4d4672}
  .highlight-tags{display:flex;flex-wrap:wrap;gap:10px}
  .highlight-tags span{
    padding:8px 15px;border-radius:11px;font-size:13.5px;font-weight:700;
    color:#3f2f74;background:#fff;border:1px solid rgba(124,58,237,.2);
    box-shadow:0 12px 24px -22px rgba(50,20,120,.9);
    transition:transform .2s ease, color .2s ease, border-color .2s ease;
  }
  .highlight-tags span:hover{transform:translateY(-3px);color:var(--magenta);border-color:rgba(255,46,136,.42)}
  .table-wrap{overflow-x:auto;border-radius:18px;border:1px solid var(--line);background:#fff;box-shadow:0 24px 50px -40px rgba(50,20,120,.85)}
  .compare-table{width:100%;min-width:720px;border-collapse:collapse;font-size:14.5px}
  .compare-table th,.compare-table td{padding:15px 18px;text-align:left;border-bottom:1px solid #f0ebfa}
  .compare-table thead th{background:#faf6ff;font-size:14px;font-weight:800;color:#3a2f6b;white-space:nowrap}
  .compare-table thead th.highlight{background:linear-gradient(120deg,rgba(124,58,237,.14),rgba(255,46,136,.14));color:#4c1d95}
  .compare-table tbody td:first-child{font-weight:700;color:#332b58;white-space:nowrap}
  .compare-table tbody tr:last-child td{border-bottom:none}
  .compare-table td.highlight{color:#8b1b58;font-weight:700;background:rgba(255,46,136,.05)}
  .compare-table tbody tr:hover td{background:#fcf9ff}
  .compare-table tbody tr:hover td.highlight{background:rgba(255,46,136,.09)}

  /* token */
  .price-card{position:relative;padding:26px 24px}
  .price-card .price-title{font-size:16.5px;font-weight:800;color:#170f33;margin:0 0 6px}
  .price-card .price-desc{font-size:13.5px;color:#6b6489;margin:0 0 16px}
  .price-card ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
  .price-card li{font-size:14px;color:#4b4470;padding-left:20px;position:relative}
  .price-card li::before{
    content:"";position:absolute;left:0;top:7px;width:9px;height:9px;border-radius:50%;
    background:rgba(124,58,237,.18);border:2px solid rgba(124,58,237,.6);
  }
  .price-note{margin:18px 0 0;font-size:13px;color:#8a83a8;text-align:center}
  .agent-band{
    margin-top:26px;border-radius:22px;padding:34px 30px;
    background:linear-gradient(120deg,#5b21b6,#a12ee0 55%,#ff2e88);
    color:#fff;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
    box-shadow:0 30px 60px -34px rgba(124,58,237,.9);
  }
  .agent-band h3{margin:0 0 8px;font-size:clamp(19px,2.3vw,24px);font-weight:800;letter-spacing:-.4px}
  .agent-band p{margin:0;font-size:14.5px;color:rgba(255,255,255,.9);max-width:640px}

  /* resources */
  .res-card h3{margin:0 0 14px}
  .plain-list{list-style:none;margin:0;padding:0;display:grid;gap:11px}
  .plain-list li{font-size:14.5px;color:#4b4470;padding-left:18px;position:relative}
  .plain-list li::before{
    content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:2px;
    background:linear-gradient(120deg,var(--magenta),var(--violet));
  }
  .news-list{list-style:none;margin:0;padding:0;display:grid;gap:12px}
  .news-list a{
    display:block;font-size:14px;color:#443b78;text-decoration:none;line-height:1.5;
    padding-left:18px;position:relative;transition:color .2s ease;
  }
  .news-list a::before{
    content:"";position:absolute;left:0;top:8px;width:7px;height:7px;border-radius:50%;
    background:linear-gradient(120deg,var(--cyan),var(--violet));
  }
  .news-list a:hover{color:var(--magenta)}

  /* reviews */
  .review-card{padding:24px}
  .review-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
  .avatar{
    width:42px;height:42px;border-radius:14px;flex:0 0 auto;
    display:flex;align-items:center;justify-content:center;
    font-size:16px;font-weight:800;color:#fff;
    background:linear-gradient(120deg,#7c3aed,#ff2e88);
  }
  .review-card:nth-child(2) .avatar{background:linear-gradient(120deg,#ff2e88,#f59e0b)}
  .review-card:nth-child(3) .avatar{background:linear-gradient(120deg,#0ea5e9,#7c3aed)}
  .review-card:nth-child(4) .avatar{background:linear-gradient(120deg,#f59e0b,#ff2e88)}
  .review-card:nth-child(5) .avatar{background:linear-gradient(120deg,#10b981,#0ea5e9)}
  .review-card:nth-child(6) .avatar{background:linear-gradient(120deg,#7c3aed,#0ea5e9)}
  .review-top strong{display:block;font-size:15px;font-weight:800;color:#170f33}
  .review-top em{display:block;font-style:normal;font-size:12.5px;color:#7b749b;margin-top:2px}
  .review-card p{margin:0;font-size:14.5px;color:#514a76}

  /* faq */
  .faq-list{display:grid;gap:12px;max-width:900px;margin:0 auto}
  .faq-item{
    background:#fff;border:1px solid var(--line);border-radius:14px;
    box-shadow:0 18px 40px -36px rgba(50,20,120,.9);overflow:hidden;
    transition:border-color .24s ease, box-shadow .24s ease;
  }
  .faq-item:hover{border-color:rgba(255,46,136,.3)}
  .faq-item.is-open{border-color:rgba(124,58,237,.36);box-shadow:0 22px 46px -34px rgba(80,30,160,.65)}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:17px 22px;background:transparent;border:none;cursor:pointer;
    font-family:inherit;font-size:15px;font-weight:700;color:#211a44;text-align:left;
  }
  .faq-icon{position:relative;width:18px;height:18px;flex:0 0 auto}
  .faq-icon::before,.faq-icon::after{
    content:"";position:absolute;left:50%;top:50%;background:var(--violet);
    border-radius:2px;transform:translate(-50%,-50%);
    transition:transform .28s ease, opacity .28s ease;
  }
  .faq-icon::before{width:14px;height:2px}
  .faq-icon::after{width:2px;height:14px}
  .faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
  .faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s ease}
  .faq-a > div{overflow:hidden}
  .faq-a p{margin:0;padding:0 22px 18px;font-size:14.5px;color:#57507c}
  .faq-item.is-open .faq-a{grid-template-rows:1fr}

  /* contact */
  .contact-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:24px;align-items:start}
  .lead-form{display:grid;grid-template-columns:1fr 1fr;gap:16px}
  .field{display:flex;flex-direction:column;gap:7px}
  .field.full{grid-column:1 / -1}
  .field label{font-size:13.5px;font-weight:700;color:#3a3266}
  .field input,.field select,.field textarea{
    width:100%;padding:12px 14px;border-radius:11px;
    border:1px solid rgba(124,58,237,.22);background:#fdfbff;
    font-family:inherit;font-size:14.5px;color:#221b45;
    transition:border-color .2s ease, box-shadow .2s ease, background .2s ease;
  }
  .field input::placeholder,.field textarea::placeholder{color:#a29bbe}
  .field input:focus,.field select:focus,.field textarea:focus{
    outline:none;border-color:var(--violet);background:#fff;
    box-shadow:0 0 0 4px rgba(124,58,237,.12);
  }
  .field textarea{resize:vertical;min-height:104px}
  .form-submit{grid-column:1 / -1;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
  .form-tip{font-size:13px;color:#8a83a8;margin:0}
  .contact-card{background:linear-gradient(160deg,#ffffff,#fbf4ff);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:0 24px 50px -38px rgba(60,20,130,.85)}
  .contact-card h3{margin:0 0 16px;font-size:16.5px;font-weight:800;color:#170f33}
  .contact-list{list-style:none;margin:0;padding:0;display:grid;gap:13px;font-size:14.5px;color:#4b4470}
  .contact-list strong{color:#2c2452;font-weight:700}
  .qr-box{margin-top:20px;text-align:center;padding-top:20px;border-top:1px dashed rgba(124,58,237,.24)}
  .qr-box img{width:148px;max-width:100%;margin:0 auto 10px;border-radius:12px;border:1px solid rgba(124,58,237,.2);background:#fff;padding:6px;object-fit:contain}
  .qr-box p{margin:0;font-size:13px;color:#6b6489}

  /* footer */
  .site-footer{
    background:#171029;color:#cfc7ea;margin-top:20px;
  }
  .footer-top{
    display:grid;grid-template-columns:1.1fr .9fr 1.2fr;gap:34px;
    padding:46px 0 30px;
  }
  .footer-brand{display:flex;flex-direction:column;gap:14px}
  .footer-brand .brand-line{display:flex;align-items:center;gap:10px}
  .footer-brand .brand-line span{font-size:16px;font-weight:800;color:#fff;letter-spacing:.4px}
  .footer-brand p{margin:0;font-size:13.5px;color:#a79ecb;line-height:1.7}
  .site-footer h3{margin:0 0 14px;font-size:14.5px;font-weight:800;color:#fff;letter-spacing:.4px}
  .footer-list{list-style:none;margin:0;padding:0;display:grid;gap:10px;font-size:13.5px;color:#a79ecb}
  .footer-list strong{color:#efe9ff;font-weight:700}
  .friend-links{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px 10px}
  .friend-links a{
    display:inline-block;padding:6px 12px;border-radius:9px;
    font-size:12.5px;color:#c7bdf0;text-decoration:none;
    background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);
    transition:color .2s ease, background .2s ease, border-color .2s ease;
  }
  .friend-links a:hover{color:#fff;background:rgba(255,46,136,.22);border-color:rgba(255,46,136,.5)}
  .footer-bottom{
    border-top:1px solid rgba(255,255,255,.1);
    padding:18px 0 22px;
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
    font-size:13px;color:#9c92c3;
  }
  .footer-bottom p{margin:0}
  .ai-page-home-link{color:#cfc7ea;text-decoration:none;border-bottom:1px solid rgba(255,255,255,.25);padding-bottom:1px}
  .ai-page-home-link:hover{color:#fff;border-color:#ff2e88}

  /* float tools */
  .float-tools{position:fixed;right:18px;bottom:22px;z-index:80;display:flex;flex-direction:column;align-items:flex-end;gap:12px}
  .float-btn{
    width:52px;height:52px;border-radius:16px;border:none;cursor:pointer;
    display:flex;align-items:center;justify-content:center;
    font-size:13px;font-weight:800;color:#fff;font-family:inherit;
    background:linear-gradient(135deg,#6d28d9,#ff2e88);
    box-shadow:0 18px 34px -16px rgba(124,58,237,.9);
    transition:transform .22s ease, box-shadow .22s ease, opacity .22s ease;
  }
  .float-btn:hover{transform:translateY(-3px)}
  #backTop{opacity:0;visibility:hidden;background:linear-gradient(135deg,#0ea5e9,#7c3aed);font-size:17px}
  #backTop.show{opacity:1;visibility:visible}
  .kefu{position:relative}
  .kefu-panel{
    position:absolute;right:0;bottom:64px;width:224px;
    background:#fff;border:1px solid rgba(124,58,237,.2);border-radius:16px;
    padding:16px;box-shadow:0 24px 50px -22px rgba(50,20,120,.6);
    opacity:0;visibility:hidden;transform:translateY(10px);
    transition:opacity .24s ease, transform .24s ease, visibility .24s ease;
    text-align:center;
  }
  .kefu-panel.is-open{opacity:1;visibility:visible;transform:translateY(0)}
  .kefu-panel img{width:150px;margin:0 auto 10px;border-radius:10px;object-fit:contain}
  .kefu-panel p{margin:0;font-size:12.5px;color:#4b4470;line-height:1.7}
  .kefu-panel strong{display:block;font-size:13px;color:#2c2452;margin-bottom:6px}

  /* reveal */
  .reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease, transform .72s cubic-bezier(.2,.7,.3,1)}
  .reveal.is-visible{opacity:1;transform:none}

  @media (max-width:1024px){
    .nav-toggle{display:inline-flex}
    .nav-links{
      position:absolute;top:100%;left:0;right:0;
      flex-direction:column;align-items:stretch;gap:0;
      background:#fff;border-bottom:1px solid rgba(124,58,237,.16);
      padding:10px 20px 18px;display:none;
      box-shadow:0 26px 40px -30px rgba(50,20,120,.55);
    }
    .nav-links.is-open{display:flex}
    .nav-links a{padding:12px 10px;font-size:15px;border-radius:10px}
    .hero-inner{grid-template-columns:1fr;gap:36px}
    .about-grid{grid-template-columns:1fr;gap:22px}
    .contact-grid{grid-template-columns:1fr}
    .review-band{grid-template-columns:1fr;gap:18px}
    .review-score{border-right:none;border-bottom:1px dashed rgba(124,58,237,.25);padding-bottom:18px}
    .network-band{grid-template-columns:1fr;gap:20px}
    .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
    .footer-top{grid-template-columns:1fr 1fr;gap:28px}
  }
  @media (max-width:900px){
    .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  }
  @media (max-width:760px){
    .section{padding:56px 0}
    .hero{padding:52px 0 60px}
    .studio-grid{grid-template-columns:1fr}
    .footer-top{grid-template-columns:1fr;gap:26px;padding-top:38px}
    .footer-brand{padding-bottom:6px}
  }
  @media (max-width:640px){
    .grid-3,.grid-2{grid-template-columns:1fr}
    .steps{grid-template-columns:1fr}
    .lead-form{grid-template-columns:1fr}
    .hero-metrics{grid-template-columns:1fr 1fr;gap:12px}
    .metric{padding:16px 14px}
    .metric b{font-size:22px}
    .agent-band{padding:26px 22px}
    .float-tools{right:12px;bottom:16px}
    .float-btn{width:48px;height:48px;border-radius:14px}
  }
  @media (prefers-reduced-motion:reduce){
    html{scroll-behavior:auto}
    .reveal{opacity:1;transform:none;transition:none}
    .btn,.card,.metric,.media-card,.step,.faq-a,.kefu-panel{transition:none}
  }