:root{
    --teal-900:#0b3b3c;
    --teal-700:#0f6b6c;
    --teal-500:#13a39b;
    --teal-300:#5ecfc4;
    --teal-100:#e3f7f4;
    --ink:#12262a;
    --ink-soft:#41606a;
    --line:#d7e8e6;
    --bg:#f4fbfa;
    --card:#ffffff;
    --amber:#e69b3a;
    --radius:16px;
    --shadow:0 10px 30px rgba(15,107,108,.08);
    --shadow-hover:0 18px 40px rgba(15,107,108,.16);
  }
  *{box-sizing:border-box;margin:0;padding:0;}
  html{scroll-behavior:smooth;}
  body{
    font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
    color:var(--ink);
    background:
      radial-gradient(1100px 520px at 88% -8%, rgba(94,207,196,.30), transparent 60%),
      radial-gradient(900px 480px at -8% 12%, rgba(19,163,155,.16), transparent 58%),
      linear-gradient(180deg,#f7fdfc 0%, #eef8f7 42%, #f4fbfa 100%);
    line-height:1.7;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;height:auto;display:block;}
  a{color:inherit;text-decoration:none;}
  ul{list-style:none;}
  .container{
    width:100%;
    max-width:1180px;
    margin:0 auto;
    padding:0 20px;
  }
  section{position:relative;}
  .sec-pad{padding:76px 0;}
  .sec-head{max-width:760px;margin:0 auto 42px;text-align:center;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;font-weight:700;letter-spacing:.14em;
    color:var(--teal-700);
    background:rgba(19,163,155,.10);
    border:1px solid rgba(19,163,155,.22);
    padding:6px 14px;border-radius:999px;
    margin-bottom:16px;
  }
  .eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--teal-500);}
  h1,h2,h3{line-height:1.3;letter-spacing:.2px;}
  h2{font-size:clamp(23px,3vw,32px);color:var(--teal-900);}
  h3{font-size:18px;color:var(--teal-900);}
  .sec-head p{margin-top:12px;color:var(--ink-soft);font-size:15.5px;}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:13px 26px;border-radius:999px;font-size:15px;font-weight:700;
    border:1px solid transparent;cursor:pointer;
    transition:transform .22s ease, box-shadow .22s ease, background .22s ease, color .22s ease;
    white-space:nowrap;
  }
  .btn-primary{
    background:linear-gradient(135deg,var(--teal-500),var(--teal-700));
    color:#fff;
    box-shadow:0 10px 24px rgba(15,107,108,.28);
  }
  .btn-primary:hover{transform:translateY(-3px);box-shadow:0 16px 34px rgba(15,107,108,.36);}
  .btn-ghost{
    background:rgba(255,255,255,.85);
    color:var(--teal-700);
    border-color:rgba(19,163,155,.35);
  }
  .btn-ghost:hover{transform:translateY(-3px);background:#fff;box-shadow:var(--shadow);}
  .btn:active{transform:translateY(0) scale(.98);}

  /* NAV */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(247,253,252,.88);
    backdrop-filter:blur(14px);
    border-bottom:1px solid rgba(19,163,155,.14);
  }
  .nav-wrap{
    display:flex;align-items:center;justify-content:space-between;
    gap:18px;min-height:72px;padding-top:10px;padding-bottom:10px;
  }
  .brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
  .brand .ai-page-logo{max-width:132px;height:auto;}
  .brand-text{display:flex;flex-direction:column;line-height:1.2;}
  .brand-text strong{font-size:16px;color:var(--teal-900);letter-spacing:.5px;}
  .brand-text small{font-size:11px;color:var(--ink-soft);letter-spacing:.16em;}
  .nav-links{display:flex;align-items:center;gap:0;flex-wrap:wrap;flex:1;justify-content:center;}
  .nav-links a{
    padding:8px 11px;font-size:14px;color:var(--ink-soft);border-radius:8px;
    transition:color .2s ease,background .2s ease;
  }
  .nav-links a:hover{color:var(--teal-700);background:rgba(19,163,155,.10);}
  .nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
  .nav-actions .home-link{
    font-size:14px;color:var(--teal-700);font-weight:600;
    padding:8px 12px;border-radius:8px;border:1px solid rgba(19,163,155,.28);
  }
  .nav-actions .home-link:hover{background:rgba(19,163,155,.10);}
  .nav-actions .btn{padding:10px 20px;font-size:14px;}
  .nav-toggle{
    display:none;width:44px;height:44px;border-radius:12px;
    border:1px solid rgba(19,163,155,.3);background:#fff;
    cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:5px;
  }
  .nav-toggle span{display:block;width:20px;height:2px;background:var(--teal-700);border-radius:2px;transition:.25s;}
  .nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .nav-toggle.active span:nth-child(2){opacity:0;}
  .nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

  /* HERO */
  .hero{
    position:relative;overflow:hidden;
    padding:70px 0 82px;
    background:
      radial-gradient(760px 380px at 78% 6%, rgba(94,207,196,.34), transparent 62%),
      radial-gradient(620px 340px at 6% 84%, rgba(19,163,155,.20), transparent 60%),
      linear-gradient(150deg,#eafaf7 0%, #f6fdfc 50%, #e6f6f4 100%);
  }
  .hero::after{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:linear-gradient(rgba(19,163,155,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(19,163,155,.07) 1px,transparent 1px);
    background-size:56px 56px;
    mask-image:radial-gradient(circle at 50% 40%, #000 20%, transparent 78%);
    -webkit-mask-image:radial-gradient(circle at 50% 40%, #000 20%, transparent 78%);
  }
  .hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;}
  .hero-copy .eyebrow{background:rgba(255,255,255,.85);border-color:rgba(19,163,155,.3);}
  .hero-copy h1{
    font-size:clamp(28px,4.1vw,45px);
    color:var(--teal-900);
    margin-bottom:18px;
    letter-spacing:.5px;
  }
  .hero-copy h1 em{font-style:normal;color:var(--teal-500);}
  .hero-copy .lede{font-size:16.5px;color:var(--ink-soft);max-width:530px;margin-bottom:26px;}
  .hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px;}
  .hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
  .hero-tags span{
    font-size:13px;padding:6px 13px;border-radius:999px;
    background:rgba(255,255,255,.9);border:1px solid rgba(19,163,155,.24);
    color:var(--teal-700);font-weight:600;
  }
  .hero-panel{
    position:relative;
    background:linear-gradient(160deg,rgba(255,255,255,.96),rgba(233,250,248,.94));
    border:1px solid rgba(19,163,155,.24);
    border-radius:22px;
    padding:26px 24px;
    box-shadow:0 22px 50px rgba(15,107,108,.14);
    animation:floaty 7s ease-in-out infinite;
  }
  @keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-9px)}}
  .panel-title{font-size:13px;font-weight:800;letter-spacing:.16em;color:var(--teal-700);margin-bottom:16px;}
  .panel-row{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    padding:12px 14px;border-radius:12px;background:#fff;border:1px solid var(--line);
    margin-bottom:10px;
  }
  .panel-row:last-child{margin-bottom:0;}
  .panel-row strong{font-size:14px;color:var(--teal-900);}
  .panel-row span{font-size:12.5px;color:var(--ink-soft);}
  .panel-dot{width:8px;height:8px;border-radius:50%;background:var(--teal-500);box-shadow:0 0 0 4px rgba(19,163,155,.16);flex-shrink:0;}
  .panel-row > div{display:flex;align-items:center;gap:10px;}

  /* STATS */
  .stats-band{position:relative;margin-top:-38px;z-index:5;}
  .stats-grid{
    display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
    background:#fff;border-radius:20px;padding:26px 22px;
    box-shadow:var(--shadow);border:1px solid var(--line);
  }
  .stat-item{text-align:center;padding:6px 8px;border-right:1px dashed var(--line);}
  .stat-item:last-child{border-right:none;}
  .stat-item b{display:block;font-size:clamp(21px,2.6vw,28px);color:var(--teal-700);letter-spacing:.5px;}
  .stat-item span{font-size:13px;color:var(--ink-soft);}

  /* ABOUT */
  .about-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:44px;align-items:start;}
  .about-copy p{color:var(--ink-soft);font-size:15.5px;margin-bottom:14px;}
  .about-points{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:22px;}
  .about-points li{
    display:flex;align-items:flex-start;gap:9px;font-size:14px;color:var(--ink);
    background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 14px;
    transition:transform .22s ease, box-shadow .22s ease;
  }
  .about-points li:hover{transform:translateY(-3px);box-shadow:var(--shadow);}
  .about-points li::before{content:"◆";color:var(--teal-500);font-size:11px;line-height:1.9;}
  .about-visual{
    background:linear-gradient(160deg,#ffffff, #e9faf7);
    border:1px solid var(--line);border-radius:20px;padding:24px;
    box-shadow:var(--shadow);
  }
  .visual-title{font-size:13px;letter-spacing:.16em;font-weight:800;color:var(--teal-700);margin-bottom:16px;}
  .visual-list{display:flex;flex-direction:column;gap:12px;}
  .visual-list li{
    background:#fff;border:1px solid var(--line);border-radius:12px;padding:13px 15px;
    display:flex;justify-content:space-between;align-items:center;gap:12px;
    font-size:14px;transition:border-color .2s ease, transform .2s ease;
  }
  .visual-list li:hover{border-color:var(--teal-300);transform:translateX(3px);}
  .visual-list li b{color:var(--teal-900);}
  .visual-list li span{color:var(--ink-soft);font-size:12.5px;}

  /* SERVICES */
  .services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
  .service-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    padding:24px 22px;position:relative;overflow:hidden;
    transition:transform .24s ease, box-shadow .24s ease, border-color .24s ease;
  }
  .service-card::before{
    content:"";position:absolute;top:0;left:0;width:100%;height:3px;
    background:linear-gradient(90deg,var(--teal-500),var(--teal-300));
    transform:scaleX(0);transform-origin:left;transition:transform .3s ease;
  }
  .service-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:rgba(19,163,155,.35);}
  .service-card:hover::before{transform:scaleX(1);}
  .service-icon{
    width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
    background:rgba(19,163,155,.10);color:var(--teal-700);font-weight:800;font-size:16px;
    margin-bottom:14px;
  }
  .service-card h3{margin-bottom:8px;}
  .service-card p{font-size:14px;color:var(--ink-soft);}

  /* PLATFORM MODELS */
  .tag-cloud{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;max-width:980px;margin:0 auto;}
  .tag-cloud span{
    font-size:13.5px;padding:8px 16px;border-radius:999px;
    background:#fff;border:1px solid var(--line);color:var(--teal-900);font-weight:600;
    transition:all .22s ease;
  }
  .tag-cloud span:hover{background:var(--teal-500);color:#fff;border-color:var(--teal-500);transform:translateY(-3px);}

  /* TIMELINE / PROCESS */
  .process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;position:relative;}
  .process-item{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    padding:24px 20px;transition:transform .24s ease, box-shadow .24s ease;
  }
  .process-item:hover{transform:translateY(-5px);box-shadow:var(--shadow);}
  .step-num{
    display:inline-flex;align-items:center;justify-content:center;
    width:38px;height:38px;border-radius:50%;font-weight:800;font-size:15px;
    background:linear-gradient(135deg,var(--teal-500),var(--teal-700));color:#fff;
    margin-bottom:14px;
  }
  .process-item h3{font-size:16px;margin-bottom:6px;}
  .process-item p{font-size:13.5px;color:var(--ink-soft);}

  /* SOLUTIONS */
  .solution-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
  .solution-card{
    background:linear-gradient(160deg,#ffffff,#f0fbf9);
    border:1px solid var(--line);border-radius:var(--radius);padding:24px 22px;
    transition:transform .24s ease, box-shadow .24s ease;
  }
  .solution-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);}
  .solution-card h3{margin-bottom:14px;padding-bottom:12px;border-bottom:1px dashed var(--line);}
  .solution-card ul{display:flex;flex-direction:column;gap:9px;}
  .solution-card li{font-size:13.8px;color:var(--ink-soft);display:flex;gap:8px;align-items:flex-start;}
  .solution-card li::before{content:"›";color:var(--teal-500);font-weight:800;}

  /* TABLE */
  .table-scroll{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--line);background:#fff;box-shadow:var(--shadow);}
  table{width:100%;border-collapse:collapse;min-width:680px;}
  thead th{
    background:linear-gradient(135deg,var(--teal-700),var(--teal-500));
    color:#fff;font-size:14px;padding:15px 18px;text-align:left;font-weight:700;letter-spacing:.4px;
  }
  tbody td{padding:14px 18px;border-bottom:1px solid var(--line);font-size:14px;color:var(--ink-soft);vertical-align:top;}
  tbody tr:last-child td{border-bottom:none;}
  tbody tr:hover{background:rgba(19,163,155,.05);}
  tbody td:first-child{color:var(--teal-900);font-weight:700;}
  .badge-star{color:var(--amber);letter-spacing:2px;font-weight:800;}

  /* REVIEW SCORE */
  .score-panel{
    display:grid;grid-template-columns:300px 1fr;gap:26px;align-items:center;
    background:linear-gradient(150deg,#ffffff,#e9faf7);
    border:1px solid var(--line);border-radius:22px;padding:28px;margin-bottom:24px;
    box-shadow:var(--shadow);
  }
  .score-main{text-align:center;border-right:1px dashed var(--line);padding-right:26px;}
  .score-main b{display:block;font-size:56px;line-height:1;color:var(--teal-700);letter-spacing:-1px;}
  .score-main b small{font-size:18px;color:var(--ink-soft);font-weight:600;}
  .score-main .stars{font-size:20px;color:var(--amber);letter-spacing:3px;margin:12px 0 6px;}
  .score-main p{font-size:13.5px;color:var(--ink-soft);}
  .score-notes{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;}
  .score-notes li{
    font-size:13.5px;color:var(--ink);background:#fff;border:1px solid var(--line);
    border-radius:10px;padding:11px 14px;display:flex;gap:8px;align-items:flex-start;
  }
  .score-notes li::before{content:"✓";color:var(--teal-500);font-weight:800;}

  /* FAQ */
  .faq-wrap{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:12px;}
  .faq-item{
    background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;
    transition:border-color .22s ease, box-shadow .22s ease;
  }
  .faq-item.open{border-color:rgba(19,163,155,.45);box-shadow:var(--shadow);}
  .faq-q{
    width:100%;text-align:left;background:none;border:none;cursor:pointer;
    padding:17px 20px;font-size:15px;font-weight:700;color:var(--teal-900);
    display:flex;justify-content:space-between;align-items:center;gap:14px;
    font-family:inherit;
  }
  .faq-q i{
    flex-shrink:0;width:24px;height:24px;border-radius:50%;
    display:flex;align-items:center;justify-content:center;
    background:rgba(19,163,155,.12);color:var(--teal-700);font-style:normal;font-size:16px;
    transition:transform .28s ease;
  }
  .faq-item.open .faq-q i{transform:rotate(45deg);}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease;}
  .faq-a p{padding:0 20px 18px;font-size:14px;color:var(--ink-soft);}

  /* REVIEWS */
  .review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
  .review-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    padding:24px 22px;display:flex;flex-direction:column;gap:14px;
    transition:transform .24s ease, box-shadow .24s ease;
  }
  .review-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);}
  .review-top{display:flex;align-items:center;gap:12px;}
  .avatar{
    width:44px;height:44px;border-radius:50%;flex-shrink:0;
    background:linear-gradient(135deg,var(--teal-300),var(--teal-700));
    color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:15px;
  }
  .review-top strong{display:block;font-size:14.5px;color:var(--teal-900);}
  .review-top span{font-size:12.5px;color:var(--ink-soft);}
  .review-card p{font-size:14px;color:var(--ink-soft);flex:1;}
  .review-stars{color:var(--amber);font-size:14px;letter-spacing:2px;}

  /* SHOWCASE */
  .showcase-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
  .showcase-item{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    overflow:hidden;transition:transform .24s ease, box-shadow .24s ease;
  }
  .showcase-item:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);}
  .showcase-media{aspect-ratio:4/3;background:#eef8f7;overflow:hidden;}
  .showcase-media img{width:100%;height:100%;object-fit:cover;}
  .showcase-body{padding:18px 20px;}
  .showcase-body h3{font-size:16px;margin-bottom:6px;}
  .showcase-body p{font-size:13.5px;color:var(--ink-soft);}

  /* NETWORK */
  .network-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
  .network-item{
    background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px 18px;
    text-align:center;transition:transform .22s ease, box-shadow .22s ease;
  }
  .network-item:hover{transform:translateY(-4px);box-shadow:var(--shadow);}
  .network-item strong{display:block;font-size:15px;color:var(--teal-900);margin-bottom:4px;}
  .network-item span{font-size:13px;color:var(--ink-soft);}

  /* TOKEN */
  .token-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
  .token-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;
    transition:transform .24s ease, box-shadow .24s ease;position:relative;
  }
  .token-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);}
  .token-card.featured{border-color:var(--teal-500);box-shadow:0 14px 34px rgba(19,163,155,.18);}
  .token-card.featured::after{
    content:"推荐";position:absolute;top:14px;right:14px;font-size:11px;font-weight:800;
    background:var(--teal-500);color:#fff;padding:3px 10px;border-radius:999px;letter-spacing:.1em;
  }
  .token-card h3{margin-bottom:6px;}
  .token-price{font-size:28px;font-weight:800;color:var(--teal-700);margin:10px 0 4px;letter-spacing:-.5px;}
  .token-price small{font-size:13px;color:var(--ink-soft);font-weight:600;}
  .token-card ul{display:flex;flex-direction:column;gap:8px;margin-top:14px;}
  .token-card li{font-size:13.5px;color:var(--ink-soft);display:flex;gap:7px;align-items:flex-start;}
  .token-card li::before{content:"✓";color:var(--teal-500);font-weight:800;}

  /* ARTICLES */
  .article-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;}
  .article-item{
    display:flex;align-items:center;justify-content:space-between;gap:14px;
    background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px;
    transition:transform .22s ease, border-color .22s ease, box-shadow .22s ease;
  }
  .article-item:hover{transform:translateX(4px);border-color:rgba(19,163,155,.4);box-shadow:var(--shadow);}
  .article-item strong{font-size:14.5px;color:var(--teal-900);display:block;}
  .article-item span{font-size:12.5px;color:var(--ink-soft);}
  .article-arrow{color:var(--teal-500);font-weight:800;flex-shrink:0;}

  /* FORM */
  .form-panel{
    background:linear-gradient(160deg,#ffffff,#eafaf7);
    border:1px solid var(--line);border-radius:22px;padding:32px;
    box-shadow:var(--shadow);
  }
  .form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
  .form-field{display:flex;flex-direction:column;gap:7px;}
  .form-field.full{grid-column:1/-1;}
  .form-field label{font-size:13.5px;font-weight:700;color:var(--teal-900);}
  .form-field input,
  .form-field select,
  .form-field textarea{
    width:100%;font-family:inherit;font-size:14px;color:var(--ink);
    background:#fff;border:1px solid var(--line);border-radius:10px;
    padding:12px 14px;outline:none;
    transition:border-color .2s ease, box-shadow .2s ease;
  }
  .form-field input:focus,
  .form-field select:focus,
  .form-field textarea:focus{
    border-color:var(--teal-500);
    box-shadow:0 0 0 3px rgba(19,163,155,.14);
  }
  .form-field textarea{min-height:110px;resize:vertical;}
  .form-submit{margin-top:20px;display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
  .form-submit small{font-size:12.5px;color:var(--ink-soft);}
  .contact-side{display:flex;flex-direction:column;gap:14px;}
  .contact-card{
    background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px 22px;
    transition:transform .22s ease, box-shadow .22s ease;
  }
  .contact-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);}
  .contact-card h3{font-size:15px;margin-bottom:8px;}
  .contact-card p{font-size:13.5px;color:var(--ink-soft);word-break:break-all;}
  .contact-card a{color:var(--teal-700);font-weight:600;}
  .contact-card a:hover{text-decoration:underline;}
  .qr-box{margin-top:12px;width:130px;border-radius:10px;overflow:hidden;border:1px solid var(--line);}
  .contact-layout{display:grid;grid-template-columns:1.35fr .65fr;gap:26px;align-items:start;}

  /* JOIN */
  .join-panel{
    background:linear-gradient(135deg,var(--teal-700),#0a4f52);
    border-radius:22px;padding:38px 34px;color:#fff;
    display:grid;grid-template-columns:1fr auto;gap:26px;align-items:center;
    box-shadow:0 20px 46px rgba(11,59,60,.28);
  }
  .join-panel h2{color:#fff;font-size:clamp(22px,2.8vw,30px);margin-bottom:10px;}
  .join-panel p{color:rgba(255,255,255,.86);font-size:14.5px;max-width:640px;}
  .join-panel .btn{background:#fff;color:var(--teal-700);}
  .join-panel .btn:hover{background:var(--teal-100);}

  /* FOOTER */
  .site-footer{
    background:#0b3b3c;color:#d6ecea;
    padding:52px 0 22px;margin-top:76px;
  }
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:32px;}
  .footer-brand .ai-page-logo{max-width:140px;margin-bottom:14px;}
  .footer-brand p{font-size:13.5px;color:#a9d3cf;line-height:1.8;max-width:300px;}
  .footer-col h3{font-size:14.5px;color:#ffffff;margin-bottom:14px;letter-spacing:.5px;}
  .footer-col ul{display:flex;flex-direction:column;gap:9px;}
  .footer-col a{font-size:13.5px;color:#a9d3cf;transition:color .2s ease,transform .2s ease;display:inline-block;}
  .footer-col a:hover{color:#ffffff;transform:translateX(3px);}
  .footer-links-inline{display:flex;flex-wrap:wrap;gap:8px 16px;}
  .footer-links-inline a{font-size:13px;color:#a9d3cf;}
  .footer-links-inline a:hover{color:#fff;}
  .footer-bottom{
    margin-top:34px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
    display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;
    font-size:12.5px;color:#8fc0bc;
  }

  /* FLOATING */
  .float-actions{position:fixed;right:18px;bottom:22px;z-index:80;display:flex;flex-direction:column;gap:10px;}
  .float-btn{
    width:50px;height:50px;border-radius:50%;border:none;cursor:pointer;
    background:linear-gradient(135deg,var(--teal-500),var(--teal-700));
    color:#fff;font-size:13px;font-weight:800;box-shadow:0 10px 24px rgba(15,107,108,.32);
    display:flex;align-items:center;justify-content:center;
    transition:transform .22s ease, box-shadow .22s ease;
  }
  .float-btn:hover{transform:translateY(-4px) scale(1.05);box-shadow:0 16px 32px rgba(15,107,108,.42);}
  .float-btn.kefu{background:#fff;color:var(--teal-700);border:1px solid rgba(19,163,155,.4);}
  .kefu-pop{
    position:fixed;right:18px;bottom:84px;z-index:79;
    background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px;
    box-shadow:0 20px 46px rgba(11,59,60,.22);width:210px;
    display:none;animation:popIn .28s ease;
  }
  .kefu-pop.show{display:block;}
  @keyframes popIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
  .kefu-pop p{font-size:12.5px;color:var(--ink-soft);margin-bottom:10px;text-align:center;}
  .kefu-pop .qr-box{width:100%;margin:0 auto;}

  /* ANIMATIONS */
  .reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease, transform .7s ease;}
  .reveal.visible{opacity:1;transform:translateY(0);}

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

  /* RESPONSIVE */
  @media (max-width:1024px){
    .hero-inner{grid-template-columns:1fr;gap:36px;}
    .hero-panel{max-width:560px;}
    .about-grid{grid-template-columns:1fr;gap:30px;}
    .services-grid,.solution-grid,.review-grid,.showcase-grid,.token-grid{grid-template-columns:repeat(2,1fr);}
    .process-grid{grid-template-columns:repeat(2,1fr);}
    .network-grid{grid-template-columns:repeat(2,1fr);}
    .contact-layout{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:repeat(2,1fr);gap:26px;}
    .score-panel{grid-template-columns:1fr;gap:18px;}
    .score-main{border-right:none;border-bottom:1px dashed var(--line);padding-right:0;padding-bottom:18px;}
    .join-panel{grid-template-columns:1fr;}
  }
  @media (max-width:860px){
    .nav-links{
      display:none;position:absolute;top:100%;left:0;right:0;
      flex-direction:column;align-items:stretch;gap:0;
      background:#ffffff;border-bottom:1px solid var(--line);
      padding:10px 20px 18px;box-shadow:0 18px 30px rgba(11,59,60,.10);
      max-height:70vh;overflow-y:auto;
    }
    .nav-links.show{display:flex;}
    .nav-links a{padding:12px 8px;border-radius:8px;font-size:14.5px;border-bottom:1px solid #f0f7f6;}
    .nav-links a:last-child{border-bottom:none;}
    .nav-toggle{display:flex;}
    .nav-actions .home-link{display:none;}
    .site-header .container{position:relative;}
  }
  @media (max-width:720px){
    .sec-pad{padding:54px 0;}
    .stats-grid{grid-template-columns:repeat(2,1fr);gap:8px;padding:20px 14px;}
    .stat-item{border-right:none;padding:10px 4px;}
    .services-grid,.solution-grid,.review-grid,.showcase-grid,.token-grid,
    .process-grid,.network-grid,.article-list,.form-grid,.about-points,.score-notes{
      grid-template-columns:1fr;
    }
    .footer-grid{grid-template-columns:1fr;}
    .hero{padding:48px 0 64px;}
    .hero-cta .btn{width:100%;}
    .form-panel{padding:22px 18px;}
    .join-panel{padding:28px 22px;}
    .footer-bottom{flex-direction:column;align-items:flex-start;text-align:left;}
    .float-actions{right:12px;bottom:14px;}
    .kefu-pop{right:12px;bottom:76px;width:190px;}
    .site-footer{padding:42px 0 20px;margin-top:54px;}
  }