*,*::before,*::after{box-sizing:border-box}
  :root{
    --violet:#6c5ce7;
    --blue:#3b82f6;
    --cyan:#06b6d4;
    --green:#10b981;
    --amber:#f59e0b;
    --pink:#ec4899;
    --ink:#161b2e;
    --ink-2:#4d5573;
    --ink-3:#727a96;
    --line:rgba(22,27,46,.10);
    --radius:18px;
  }
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
    color:var(--ink);
    font-size:16px;
    line-height:1.72;
    background:
      radial-gradient(900px 620px at 6% -6%,rgba(108,92,231,.15),transparent 62%),
      radial-gradient(760px 560px at 98% 2%,rgba(236,72,153,.12),transparent 62%),
      radial-gradient(880px 700px at 50% 46%,rgba(6,182,212,.09),transparent 65%),
      radial-gradient(760px 640px at 12% 96%,rgba(245,158,11,.10),transparent 65%),
      #fbfaff;
    background-attachment:fixed;
    overflow-x:hidden;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4{margin:0;line-height:1.3;color:var(--ink);font-weight:700}
  p{margin:0}
  ul,ol{margin:0;padding:0;list-style:none}
  img{max-width:100%;display:block;border:0}
  a{color:inherit}
  .container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
  section[id]{scroll-margin-top:88px}

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:80;
    background:rgba(255,255,255,.86);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid rgba(22,27,46,.09);
  }
  .site-header::after{
    content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;
    background:linear-gradient(90deg,#6c5ce7,#3b82f6,#06b6d4,#10b981,#f59e0b,#ec4899);
    opacity:.55;
  }
  .header-inner{
    display:flex;align-items:center;justify-content:space-between;
    gap:14px;min-height:68px;flex-wrap:nowrap;
  }
  .brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto}
  .brand .ai-page-logo{display:block;width:auto;max-height:38px;height:auto}
  .nav{display:block}
  .nav-links{display:flex;align-items:center;justify-content:center;gap:0;flex-wrap:nowrap}
  .nav-links li{display:block}
  .nav-links a{
    display:block;padding:8px 11px;font-size:14.5px;color:#3a4260;
    text-decoration:none;border-radius:999px;white-space:nowrap;
    transition:color .2s ease,background .2s ease;
  }
  .nav-links a:hover,.nav-links a:focus-visible{color:#5646d6;background:rgba(108,92,231,.10)}
  .header-cta{flex:0 0 auto}
  .nav-toggle{
    display:none;align-items:center;justify-content:center;
    width:42px;height:42px;border-radius:12px;border:1px solid rgba(22,27,46,.14);
    background:#fff;cursor:pointer;padding:0;
  }
  .nav-toggle span{position:relative;display:block;width:18px;height:2px;background:#3a4260;border-radius:2px}
  .nav-toggle span::before,.nav-toggle span::after{
    content:"";position:absolute;left:0;width:18px;height:2px;background:#3a4260;border-radius:2px;
  }
  .nav-toggle span::before{top:-6px}
  .nav-toggle span::after{top:6px}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:13px 26px;border-radius:999px;font-size:15.5px;font-weight:600;
    text-decoration:none;border:1px solid transparent;cursor:pointer;
    font-family:inherit;line-height:1.2;
    transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
  }
  .btn:active{transform:scale(.97)}
  .btn-primary{
    background:linear-gradient(135deg,#6c5ce7,#3b82f6);
    color:#fff;box-shadow:0 16px 30px -16px rgba(108,92,231,.85);
  }
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 22px 38px -16px rgba(108,92,231,.9)}
  .btn-ghost{
    background:#fff;color:#3a4260;border-color:rgba(22,27,46,.16);
  }
  .btn-ghost:hover{transform:translateY(-2px);color:#5646d6;border-color:rgba(108,92,231,.55)}
  .btn-sm{padding:10px 20px;font-size:14px}

  /* ---------- 区块通用 ---------- */
  .section{padding:68px 0}
  .section-head{max-width:780px;margin:0 auto 36px;text-align:center}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;font-weight:600;letter-spacing:.06em;
    color:#5b4bd6;text-transform:uppercase;margin-bottom:12px;
  }
  .eyebrow::before{
    content:"";width:22px;height:3px;border-radius:3px;
    background:linear-gradient(90deg,#6c5ce7,#ec4899);
  }
  .section-head h2{font-size:clamp(23px,2.7vw,32px);letter-spacing:-.3px}
  .section-head p{margin-top:12px;color:var(--ink-2);font-size:15.5px}

  .grid{display:grid;gap:18px}
  .grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
  .grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}

  .card{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    padding:22px 20px;
    box-shadow:0 1px 2px rgba(22,27,46,.04);
    transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  }
  .card:hover{
    transform:translateY(-4px);
    box-shadow:0 20px 40px -24px rgba(22,27,46,.5);
    border-color:rgba(108,92,231,.34);
  }
  .card h3{font-size:16.5px;margin-bottom:8px}
  .card p{font-size:14.5px;color:var(--ink-2);line-height:1.7}
  .dot{
    display:inline-block;width:10px;height:10px;border-radius:50%;
    margin-right:8px;vertical-align:middle;
  }
  .dot-1{background:linear-gradient(135deg,#6c5ce7,#a78bfa)}
  .dot-2{background:linear-gradient(135deg,#3b82f6,#22d3ee)}
  .dot-3{background:linear-gradient(135deg,#10b981,#34d399)}
  .dot-4{background:linear-gradient(135deg,#f59e0b,#fbbf24)}
  .dot-5{background:linear-gradient(135deg,#ec4899,#f472b6)}
  .dot-6{background:linear-gradient(135deg,#06b6d4,#38bdf8)}

  /* ---------- 首屏 ---------- */
  .hero{position:relative;padding:68px 0 60px;overflow:hidden}
  .hero::before{
    content:"";position:absolute;width:440px;height:440px;border-radius:50%;
    top:-160px;right:-120px;pointer-events:none;
    background:radial-gradient(circle,rgba(108,92,231,.20),transparent 70%);
  }
  .hero::after{
    content:"";position:absolute;width:380px;height:380px;border-radius:50%;
    bottom:-170px;left:-130px;pointer-events:none;
    background:radial-gradient(circle,rgba(6,182,212,.18),transparent 70%);
  }
  .hero-inner{position:relative;z-index:1;text-align:center}
  .hero-badge{
    display:inline-flex;align-items:center;gap:9px;
    padding:7px 16px;border-radius:999px;background:#fff;
    border:1px solid rgba(108,92,231,.28);
    font-size:13.5px;font-weight:600;color:#4c3fd0;
    box-shadow:0 10px 24px -18px rgba(108,92,231,.9);
  }
  .hero-badge i{
    width:8px;height:8px;border-radius:50%;background:#10b981;
    box-shadow:0 0 0 4px rgba(16,185,129,.18);
    animation:pulseDot 2.4s ease-in-out infinite;
  }
  @keyframes pulseDot{
    0%,100%{box-shadow:0 0 0 4px rgba(16,185,129,.18)}
    50%{box-shadow:0 0 0 8px rgba(16,185,129,.06)}
  }
  .hero h1{
    font-size:clamp(28px,4.6vw,50px);
    line-height:1.2;letter-spacing:-.8px;
    margin:20px auto 0;max-width:900px;
  }
  .hl{
    background-image:linear-gradient(120deg,rgba(108,92,231,.26),rgba(6,182,212,.26),rgba(236,72,153,.24));
    background-repeat:no-repeat;background-size:100% 40%;background-position:0 90%;
    border-radius:5px;padding:0 3px;
  }
  .hero-lead{
    max-width:760px;margin:18px auto 0;
    font-size:16px;color:var(--ink-2);
  }
  .hero-actions{
    display:flex;align-items:center;justify-content:center;
    gap:14px;flex-wrap:wrap;margin-top:28px;
  }
  .hero-stats{
    display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
    gap:14px;margin-top:42px;text-align:left;
  }
  .stat{
    background:#fff;border:1px solid var(--line);border-radius:16px;
    padding:16px 18px;box-shadow:0 10px 26px -24px rgba(22,27,46,.8);
    transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  }
  .stat:hover{transform:translateY(-3px);border-color:rgba(108,92,231,.3);box-shadow:0 18px 32px -24px rgba(22,27,46,.9)}
  .stat strong{display:block;font-size:24px;line-height:1.2;letter-spacing:-.5px}
  .stat:nth-child(1) strong{color:#6c5ce7}
  .stat:nth-child(2) strong{color:#0e9f9f}
  .stat:nth-child(3) strong{color:#ea7a0c}
  .stat:nth-child(4) strong{color:#d6388f}
  .stat span{display:block;font-size:13.5px;color:var(--ink-3);margin-top:4px}

  .model-strip{
    margin-top:30px;overflow:hidden;position:relative;
    -webkit-mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent);
    mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent);
  }
  .model-track{display:flex;gap:10px;width:max-content;animation:scrollModels 46s linear infinite}
  .model-track:hover{animation-play-state:paused}
  @keyframes scrollModels{from{transform:translateX(0)}to{transform:translateX(-50%)}}
  .model-chip{
    flex:0 0 auto;padding:6px 14px;border-radius:999px;background:#fff;
    border:1px solid rgba(22,27,46,.10);font-size:13px;color:var(--ink-2);white-space:nowrap;
  }

  /* ---------- 平台能力 ---------- */
  .cap-card{border-left:4px solid transparent;border-radius:16px}
  .cap-card:nth-child(1){border-left-color:#6c5ce7}
  .cap-card:nth-child(2){border-left-color:#3b82f6}
  .cap-card:nth-child(3){border-left-color:#06b6d4}
  .cap-card:nth-child(4){border-left-color:#10b981}
  .cap-card:nth-child(5){border-left-color:#f59e0b}
  .cap-card:nth-child(6){border-left-color:#ec4899}
  .cap-card:nth-child(7){border-left-color:#8b5cf6}

  /* ---------- 标签云 ---------- */
  .tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;justify-content:center}
  .tag-cloud span{
    padding:7px 15px;border-radius:999px;font-size:13.5px;
    background:#fff;border:1px solid rgba(22,27,46,.10);color:#3f4763;
    transition:transform .2s ease,border-color .2s ease,color .2s ease;
  }
  .tag-cloud span:hover{transform:translateY(-2px);border-color:rgba(108,92,231,.45);color:#5646d6}

  /* ---------- 流程 ---------- */
  .steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
  .step{
    position:relative;background:#fff;border:1px solid var(--line);
    border-radius:var(--radius);padding:24px 20px 22px;
    transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  }
  .step:hover{transform:translateY(-4px);box-shadow:0 20px 38px -26px rgba(22,27,46,.55);border-color:rgba(108,92,231,.32)}
  .step-num{
    display:inline-flex;align-items:center;justify-content:center;
    width:34px;height:34px;border-radius:11px;font-size:15px;font-weight:700;color:#fff;
    margin-bottom:14px;
  }
  .step:nth-child(1) .step-num{background:linear-gradient(135deg,#6c5ce7,#a78bfa)}
  .step:nth-child(2) .step-num{background:linear-gradient(135deg,#3b82f6,#22d3ee)}
  .step:nth-child(3) .step-num{background:linear-gradient(135deg,#10b981,#34d399)}
  .step:nth-child(4) .step-num{background:linear-gradient(135deg,#f59e0b,#f472b6)}
  .step h3{font-size:16px;margin-bottom:8px}
  .step p{font-size:14px;color:var(--ink-2)}

  /* ---------- 行业方案 ---------- */
  .solution-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px 20px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
  .solution-card:hover{transform:translateY(-4px);box-shadow:0 20px 40px -26px rgba(22,27,46,.5);border-color:rgba(59,130,246,.34)}
  .solution-card h3{font-size:16.5px;margin-bottom:8px}
  .solution-card p{font-size:14.5px;color:var(--ink-2)}

  /* ---------- 服务网络 ---------- */
  .network-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
  .network-item{
    background:#fff;border:1px solid var(--line);border-radius:14px;
    padding:16px 18px;transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
  }
  .network-item:hover{transform:translateY(-3px);border-color:rgba(6,182,212,.4);box-shadow:0 16px 30px -26px rgba(22,27,46,.7)}
  .network-item h3{font-size:15px;margin-bottom:4px}
  .network-item p{font-size:13.5px;color:var(--ink-3)}

  /* ---------- 案例 ---------- */
  .case-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    overflow:hidden;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  }
  .case-card:hover{transform:translateY(-4px);box-shadow:0 22px 42px -26px rgba(22,27,46,.55);border-color:rgba(236,72,153,.3)}
  .case-media{
    aspect-ratio:16/10;background:#f2f3fb;display:flex;align-items:center;justify-content:center;
    padding:10px;overflow:hidden;
  }
  .case-media img{width:auto;height:auto;max-width:100%;max-height:100%;object-fit:contain}
  .case-body{padding:16px 18px 20px}
  .case-body h3{font-size:16px;margin-bottom:6px}
  .case-body p{font-size:14px;color:var(--ink-2)}

  /* ---------- 对比评测 ---------- */
  .review-band{
    background:linear-gradient(180deg,rgba(108,92,231,.09),rgba(6,182,212,.07));
    border-top:1px solid rgba(108,92,231,.16);
    border-bottom:1px solid rgba(108,92,231,.16);
  }
  .score-card{
    display:flex;align-items:center;justify-content:center;gap:36px;
    flex-wrap:wrap;background:#fff;border:1px solid rgba(108,92,231,.24);
    border-radius:22px;padding:26px 28px;margin-bottom:26px;
    box-shadow:0 22px 48px -34px rgba(108,92,231,.8);
  }
  .score-main{text-align:center}
  .score-main strong{display:block;font-size:44px;line-height:1;color:#5646d6;letter-spacing:-1px}
  .score-main strong small{font-size:18px;color:var(--ink-3);font-weight:600}
  .score-main span{display:block;font-size:13.5px;color:var(--ink-3);margin-top:8px}
  .score-stars{text-align:center}
  .score-stars .stars{font-size:24px;letter-spacing:4px;color:#f59e0b;line-height:1}
  .score-stars span{display:block;font-size:13.5px;color:var(--ink-3);margin-top:8px}

  .table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:16px;background:#fff}
  table{border-collapse:collapse;width:100%;min-width:700px;font-size:14.5px}
  th,td{padding:14px 16px;text-align:left;border-bottom:1px solid rgba(22,27,46,.07)}
  thead th{background:#f6f5ff;color:#3a3f5c;font-weight:600;white-space:nowrap;font-size:14px}
  tbody tr:last-child td{border-bottom:none}
  tbody tr:hover{background:#faf9ff}
  td:first-child{color:var(--ink);font-weight:600}
  td:nth-child(2){color:#5646d6;font-weight:600}

  /* ---------- 表单 ---------- */
  .contact-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:26px;align-items:start}
  .form-panel{
    background:#fff;border:1px solid var(--line);border-radius:22px;padding:28px 26px;
    box-shadow:0 24px 50px -40px rgba(22,27,46,.85);
  }
  .form-panel h3{font-size:19px;margin-bottom:6px}
  .form-panel .form-hint{font-size:13.5px;color:var(--ink-3);margin-bottom:18px}
  .form-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
  .form-field{margin-bottom:14px}
  .form-field label{display:block;font-size:13.5px;font-weight:600;color:#3a4260;margin-bottom:6px}
  .form-field input,.form-field select,.form-field textarea{
    width:100%;padding:12px 14px;border:1px solid rgba(22,27,46,.16);
    border-radius:12px;font-size:15px;font-family:inherit;color:var(--ink);
    background:#fbfbfe;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
  }
  .form-field textarea{resize:vertical;min-height:110px;line-height:1.6}
  .form-field input::placeholder,.form-field textarea::placeholder{color:#a5abc0}
  .form-field input:focus,.form-field select:focus,.form-field textarea:focus{
    outline:none;border-color:#6c5ce7;background:#fff;
    box-shadow:0 0 0 4px rgba(108,92,231,.13);
  }
  .form-panel .btn{width:100%;margin-top:6px}

  .contact-panel{
    background:#fff;border:1px solid var(--line);border-radius:22px;padding:26px 24px;
    box-shadow:0 24px 50px -40px rgba(22,27,46,.85);
  }
  .contact-panel h3{font-size:17px;margin-bottom:14px}
  .contact-list{display:grid;gap:12px}
  .contact-item{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:var(--ink-2)}
  .contact-item b{color:var(--ink);font-weight:600;flex:0 0 74px}
  .contact-item a{color:#5646d6;text-decoration:none;word-break:break-all}
  .contact-item a:hover{text-decoration:underline}
  .qr-box{
    margin-top:18px;padding-top:18px;border-top:1px dashed rgba(22,27,46,.14);
    display:flex;align-items:center;gap:16px;
  }
  .qr-box .qr-img{
    width:110px;flex:0 0 110px;border-radius:12px;overflow:hidden;
    border:1px solid var(--line);background:#f7f7fc;padding:6px;
  }
  .qr-box .qr-img img{width:100%;height:auto}
  .qr-box p{font-size:13.5px;color:var(--ink-3);line-height:1.65}

  /* ---------- 加盟代理 ---------- */
  .partner-panel{
    background:linear-gradient(135deg,rgba(108,92,231,.12),rgba(6,182,212,.12),rgba(236,72,153,.10));
    border:1px solid rgba(108,92,231,.22);
    border-radius:24px;padding:34px 30px;
    display:grid;grid-template-columns:1.1fr .9fr;gap:26px;align-items:center;
  }
  .partner-panel h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:12px}
  .partner-panel p{font-size:15px;color:var(--ink-2)}
  .partner-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
  .partner-item{
    background:rgba(255,255,255,.86);border:1px solid rgba(22,27,46,.08);
    border-radius:14px;padding:14px 16px;font-size:14px;color:#3a4260;
    transition:transform .25s ease,box-shadow .25s ease;
  }
  .partner-item:hover{transform:translateY(-3px);box-shadow:0 16px 30px -24px rgba(22,27,46,.7)}
  .partner-item b{display:block;color:var(--ink);font-size:14.5px;margin-bottom:3px}
  .partner-cta{margin-top:20px}

  /* ---------- Token 方案 ---------- */
  .token-note{font-size:13.5px;color:var(--ink-3);margin-top:14px;text-align:center}

  /* ---------- 文章 ---------- */
  .article-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
  .article-card{
    display:block;text-decoration:none;background:#fff;
    border:1px solid var(--line);border-radius:16px;padding:18px 18px 20px;
    transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  }
  .article-card:hover{transform:translateY(-4px);box-shadow:0 20px 36px -26px rgba(22,27,46,.6);border-color:rgba(59,130,246,.35)}
  .article-tag{
    display:inline-block;font-size:12px;font-weight:600;color:#5646d6;
    background:rgba(108,92,231,.11);border-radius:999px;padding:3px 10px;margin-bottom:10px;
  }
  .article-card h3{font-size:15px;line-height:1.55;margin-bottom:6px}
  .article-card p{font-size:13.5px;color:var(--ink-3);line-height:1.6}

  /* ---------- FAQ ---------- */
  .faq-list{max-width:900px;margin:0 auto;display:grid;gap:12px}
  .faq-item{
    background:#fff;border:1px solid var(--line);border-radius:16px;
    overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;
  }
  .faq-item.open{border-color:rgba(108,92,231,.36);box-shadow:0 18px 34px -30px rgba(108,92,231,.9)}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:17px 20px;background:transparent;border:0;cursor:pointer;
    font-family:inherit;font-size:15.5px;font-weight:600;color:var(--ink);text-align:left;
  }
  .faq-q:hover{color:#5646d6}
  .faq-icon{position:relative;width:18px;height:18px;flex:0 0 18px;color:#6c5ce7}
  .faq-icon::before,.faq-icon::after{
    content:"";position:absolute;background:currentColor;border-radius:2px;
    transition:transform .3s ease,opacity .3s ease;
  }
  .faq-icon::before{left:0;top:8px;width:18px;height:2px}
  .faq-icon::after{left:8px;top:0;width:2px;height:18px}
  .faq-item.open .faq-icon::after{transform:rotate(90deg);opacity:0}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
  .faq-a p{padding:0 20px 18px;font-size:14.5px;color:var(--ink-2);line-height:1.75}

  /* ---------- 页脚 ---------- */
  .site-footer{
    position:relative;background:#f1f2fb;
    border-top:1px solid rgba(22,27,46,.08);
    padding:44px 0 24px;color:#3a4260;
  }
  .site-footer::before{
    content:"";position:absolute;top:0;left:0;right:0;height:3px;
    background:linear-gradient(90deg,#6c5ce7,#3b82f6,#06b6d4,#10b981,#f59e0b,#ec4899);
  }
  .footer-top{display:grid;grid-template-columns:1fr 1.35fr;gap:32px;align-items:start}
  .footer-brand .ai-page-logo{width:auto;max-height:34px;height:auto;margin-bottom:14px}
  .footer-brand p{font-size:14px;color:#59618a;line-height:1.75;max-width:360px}
  .footer-links h3{font-size:15px;margin-bottom:12px;color:#252b45}
  .friend-links{display:flex;flex-wrap:wrap;gap:8px 10px}
  .friend-links a{
    font-size:13.5px;color:#4a5299;text-decoration:none;
    padding:5px 12px;border-radius:999px;background:rgba(255,255,255,.85);
    border:1px solid rgba(22,27,46,.08);transition:color .2s ease,border-color .2s ease,transform .2s ease;
  }
  .friend-links a:hover{color:#5646d6;border-color:rgba(108,92,231,.4);transform:translateY(-2px)}
  .footer-bottom{
    margin-top:30px;padding-top:18px;border-top:1px solid rgba(22,27,46,.10);
    display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
    font-size:13.5px;color:#5c6489;
  }
  .footer-bottom a{color:#5646d6;text-decoration:none}
  .footer-bottom a:hover{text-decoration:underline}

  /* ---------- 浮动组件 ---------- */
  .float-dock{
    position:fixed;right:18px;bottom:22px;z-index:90;
    display:flex;flex-direction:column;gap:10px;align-items:flex-end;
  }
  .dock-btn{
    width:52px;height:52px;border-radius:16px;border:1px solid rgba(22,27,46,.10);
    background:#fff;color:#3a4260;font-size:13px;font-weight:600;font-family:inherit;
    cursor:pointer;display:inline-flex;align-items:center;justify-content:center;
    box-shadow:0 14px 30px -18px rgba(22,27,46,.6);
    transition:transform .2s ease,box-shadow .2s ease,color .2s ease;
  }
  .dock-btn:hover{transform:translateY(-3px);color:#5646d6}
  .dock-btn.dock-primary{
    background:linear-gradient(135deg,#6c5ce7,#3b82f6);color:#fff;border-color:transparent;
  }
  #topBtn{opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .25s ease,transform .25s ease,visibility .25s ease}
  #topBtn.show{opacity:1;visibility:visible;transform:none}
  .kefu-panel{
    position:fixed;right:18px;bottom:150px;z-index:95;
    width:260px;background:#fff;border:1px solid rgba(22,27,46,.12);
    border-radius:18px;padding:18px;
    box-shadow:0 26px 52px -30px rgba(22,27,46,.8);
  }
  .kefu-panel h3{font-size:15px;margin-bottom:10px}
  .kefu-panel p{font-size:13.5px;color:var(--ink-2);line-height:1.8}
  .kefu-panel a{color:#5646d6;text-decoration:none}
  .kefu-panel .btn{width:100%;margin-top:12px}

  /* ---------- 动效 ---------- */
  .reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
  .reveal.in{opacity:1;transform:none}

  /* ---------- 响应式 ---------- */
  @media (max-width:1100px){
    .nav{
      position:absolute;left:16px;right:16px;top:calc(100% + 10px);
      display:none;background:#fff;border:1px solid rgba(22,27,46,.12);
      border-radius:16px;padding:10px;
      box-shadow:0 26px 50px -30px rgba(22,27,46,.75);
      max-height:72vh;overflow-y:auto;
    }
    .nav.open{display:block}
    .nav-links{flex-direction:column;align-items:stretch;gap:0}
    .nav-links a{padding:11px 14px;border-radius:12px;font-size:15px}
    .nav-toggle{display:inline-flex}
    .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
    .network-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .article-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
    .contact-layout{grid-template-columns:1fr}
    .partner-panel{grid-template-columns:1fr}
    .footer-top{grid-template-columns:1fr}
  }
  @media (max-width:900px){
    .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
    .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  }
  @media (max-width:720px){
    .section{padding:52px 0}
    .hero{padding:48px 0 44px}
    .hero-actions .btn{width:100%;max-width:320px}
    .form-row{grid-template-columns:1fr}
    .score-card{gap:20px;padding:22px 18px}
    .partner-list{grid-template-columns:1fr}
    .header-cta{display:none}
    .footer-bottom{flex-direction:column;align-items:flex-start}
  }
  @media (max-width:640px){
    .grid-2,.grid-3,.grid-4,.steps,.network-grid,.article-grid{grid-template-columns:1fr}
    .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
    .stat{padding:14px}
    .stat strong{font-size:20px}
    .qr-box{flex-direction:column;align-items:flex-start}
  }
  @media (prefers-reduced-motion:reduce){
    html{scroll-behavior:auto}
    .reveal{opacity:1;transform:none;transition:none}
    .model-track{animation:none}
    .hero-badge i{animation:none}
    .btn,.card,.step,.solution-card,.network-item,.case-card,.article-card,.stat,.friend-links a,.dock-btn{transition:none}
  }

.reveal{opacity:1 !important;transform:none !important}