*,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
    color:#161a26;
    font-size:16px;
    line-height:1.7;
    -webkit-font-smoothing:antialiased;
    background:
      radial-gradient(900px 480px at 6% -6%, rgba(255,77,23,.17), transparent 62%),
      radial-gradient(820px 460px at 96% 0%, rgba(43,70,255,.16), transparent 62%),
      radial-gradient(760px 560px at 50% 100%, rgba(0,192,139,.11), transparent 68%),
      linear-gradient(180deg,#fffaf5 0%,#f5f7ff 46%,#fff9f3 100%);
    background-attachment:scroll;
  }
  img{max-width:100%;}
  a{color:inherit;}
  .container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px;}

  /* ---------- header ---------- */
  .site-header{
    position:sticky;top:0;z-index:80;
    background:rgba(255,251,246,.92);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid rgba(22,26,38,.09);
  }
  .nav-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:68px;}
  .brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:#161a26;font-weight:800;font-size:17px;letter-spacing:.4px;flex:0 0 auto;}
  .brand img{width:36px;display:block;border-radius:10px;}
  .nav-links{display:flex;align-items:center;gap:0;margin:0;padding:0;}
  .nav-links a{display:block;padding:8px 11px;font-size:14.5px;color:#2c3242;text-decoration:none;border-radius:10px;transition:color .22s,background .22s;white-space:nowrap;}
  .nav-links a:hover{color:#e63c0a;background:rgba(255,77,23,.09);}
  .nav-cta{flex:0 0 auto;padding:10px 18px;font-size:14px;}
  .nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid rgba(22,26,38,.15);background:#fff;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;padding:0;flex:0 0 auto;}
  .nav-toggle span{display:block;width:18px;height:2px;background:#161a26;border-radius:2px;transition:transform .25s,opacity .25s;}
  .nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .nav-toggle.open span:nth-child(2){opacity:0;}
  .nav-toggle.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 24px;border-radius:999px;font-size:15px;font-weight:700;text-decoration:none;border:1.5px solid transparent;cursor:pointer;font-family:inherit;transition:transform .22s ease,box-shadow .22s ease,color .22s,border-color .22s,background .22s;}
  .btn-primary{background:linear-gradient(120deg,#ff7a1f,#ff2f6d);color:#fff;box-shadow:0 12px 26px rgba(255,64,64,.28);}
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(255,64,64,.36);}
  .btn-primary:active{transform:translateY(0) scale(.985);}
  .btn-ghost{background:#fff;color:#161a26;border-color:rgba(22,26,38,.18);}
  .btn-ghost:hover{color:#e63c0a;border-color:#ff6a1f;transform:translateY(-2px);box-shadow:0 10px 22px rgba(255,77,23,.16);}
  .btn-dark{background:#161a26;color:#fff;}
  .btn-dark:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(22,26,38,.26);}

  /* ---------- sections ---------- */
  .section{padding:56px 0;}
  .section-head{max-width:760px;margin-bottom:30px;}
  .eyebrow{display:inline-flex;align-items:center;gap:8px;margin:0 0 14px;padding:5px 14px;border-radius:999px;font-size:13px;font-weight:700;letter-spacing:.6px;color:#c8340a;background:rgba(255,77,23,.1);border:1px solid rgba(255,77,23,.22);}
  .section-head h2{margin:0 0 12px;font-size:clamp(24px,3vw,34px);line-height:1.28;font-weight:900;letter-spacing:-.4px;color:#12151f;}
  .section-head p{margin:0;color:#5b6276;font-size:15.5px;}

  /* ---------- hero ---------- */
  .hero{padding:52px 0 46px;position:relative;}
  .hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:44px;align-items:center;}
  .hero h1{margin:0 0 18px;font-size:clamp(30px,4.4vw,50px);line-height:1.18;font-weight:900;letter-spacing:-1px;color:#11141d;}
  .hero h1 em{font-style:normal;color:#e63c0a;}
  .hero-lead{margin:0 0 26px;font-size:16.5px;color:#4f566b;max-width:600px;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:18px;}
  .hero-note{margin:0;font-size:13.5px;color:#6a7186;}
  .hero-panel{position:relative;overflow:hidden;border-radius:24px;padding:26px;background:#fff;border:1.5px solid rgba(22,26,38,.09);box-shadow:0 26px 58px rgba(24,20,15,.13);}
  .hero-panel::before{content:"";position:absolute;left:0;right:0;top:0;height:6px;background:linear-gradient(90deg,#ff7a1f,#ff2f6d,#2b46ff);}
  .hero-panel::after{content:"";position:absolute;width:240px;height:240px;right:-100px;bottom:-120px;border-radius:50%;background:radial-gradient(circle,rgba(43,70,255,.16),transparent 70%);}
  .hero-panel>*{position:relative;z-index:1;}
  .panel-title{margin:6px 0 16px;font-size:14px;font-weight:800;letter-spacing:.5px;color:#3a4056;}
  .stat-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;}
  .stat{padding:16px 14px;border-radius:16px;background:linear-gradient(160deg,#fff7f1,#f2f5ff);border:1px solid rgba(22,26,38,.07);transition:transform .25s ease,box-shadow .25s ease;}
  .stat:hover{transform:translateY(-3px);box-shadow:0 12px 26px rgba(24,20,15,.1);}
  .stat b{display:block;font-size:25px;line-height:1.2;font-weight:900;color:#e63c0a;letter-spacing:-.5px;}
  .stat span{font-size:13px;color:#5b6276;}
  .panel-foot{margin:16px 0 0;font-size:13px;color:#6a7186;border-top:1px dashed rgba(22,26,38,.14);padding-top:14px;}
  .model-strip{margin-top:34px;overflow:hidden;border-radius:14px;border:1px solid rgba(22,26,38,.09);background:rgba(255,255,255,.72);padding:12px 0;}
  .model-track{display:flex;gap:10px;width:max-content;animation:marquee 42s linear infinite;}
  .model-track span{white-space:nowrap;font-size:13.5px;font-weight:700;color:#3b4156;background:#fff;border:1px solid rgba(22,26,38,.1);border-radius:999px;padding:6px 15px;}
  .model-strip:hover .model-track{animation-play-state:paused;}
  @keyframes marquee{from{transform:translateX(0);}to{transform:translateX(-50%);}}

  /* ---------- generic card ---------- */
  .card{background:#fff;border:1px solid rgba(22,26,38,.09);border-radius:18px;padding:22px;box-shadow:0 8px 24px rgba(24,20,15,.05);transition:transform .25s ease,box-shadow .25s ease,border-color .25s;}
  .card:hover{transform:translateY(-4px);box-shadow:0 18px 36px rgba(24,20,15,.11);border-color:rgba(255,77,23,.32);}
  .card h3{margin:0 0 8px;font-size:17px;font-weight:800;color:#12151f;letter-spacing:-.2px;}
  .card p{margin:0;font-size:14.5px;color:#5b6276;}
  .dot{width:34px;height:34px;border-radius:11px;margin-bottom:14px;background:linear-gradient(135deg,#ff7a1f,#ff2f6d);box-shadow:0 8px 18px rgba(255,77,23,.22);}
  .about-grid>.card:nth-child(2) .dot{background:linear-gradient(135deg,#2b46ff,#7a5cff);box-shadow:0 8px 18px rgba(43,70,255,.22);}
  .about-grid>.card:nth-child(3) .dot{background:linear-gradient(135deg,#00b894,#00d4a8);box-shadow:0 8px 18px rgba(0,184,148,.22);}
  .about-grid>.card:nth-child(4) .dot{background:linear-gradient(135deg,#ff9d00,#ff5f6d);box-shadow:0 8px 18px rgba(255,157,0,.22);}
  .about-grid>.card:nth-child(5) .dot{background:linear-gradient(135deg,#7a5cff,#2b46ff);box-shadow:0 8px 18px rgba(122,92,255,.22);}
  .about-grid>.card:nth-child(6) .dot{background:linear-gradient(135deg,#00c2ff,#2b46ff);box-shadow:0 8px 18px rgba(0,194,255,.22);}
  .about-grid>.card:nth-child(7) .dot{background:linear-gradient(135deg,#ff5f6d,#ff9d00);box-shadow:0 8px 18px rgba(255,95,109,.22);}

  .about-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:18px;}

  /* ---------- services ---------- */
  .service-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
  .service-grid .card{padding:20px 18px;}
  .service-grid .card h3{font-size:16px;}
  .tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
  .tag-cloud span{font-size:13.5px;font-weight:600;color:#3b4156;background:#fff;border:1px solid rgba(22,26,38,.12);border-radius:999px;padding:7px 15px;transition:.22s;}
  .tag-cloud span:hover{color:#e63c0a;border-color:#ff6a1f;background:#fff6f1;transform:translateY(-2px);}
  .gallery{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:28px;}
  .gallery figure{margin:0;background:#fff;border:1px solid rgba(22,26,38,.09);border-radius:16px;overflow:hidden;box-shadow:0 8px 22px rgba(24,20,15,.06);transition:transform .25s ease,box-shadow .25s ease;}
  .gallery figure:hover{transform:translateY(-4px);box-shadow:0 16px 32px rgba(24,20,15,.12);}
  .gallery .shot{aspect-ratio:4/3;background:#f2f3f8;overflow:hidden;}
  .gallery img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .45s ease;}
  .gallery figure:hover img{transform:scale(1.05);}
  .gallery figcaption{padding:12px 14px;font-size:13.5px;font-weight:700;color:#2c3242;}

  /* ---------- steps ---------- */
  .steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
  .step{position:relative;background:#fff;border:1px solid rgba(22,26,38,.09);border-radius:18px;padding:22px;box-shadow:0 8px 24px rgba(24,20,15,.05);transition:transform .25s ease,box-shadow .25s ease;}
  .step:hover{transform:translateY(-4px);box-shadow:0 18px 34px rgba(24,20,15,.11);}
  .step-num{width:38px;height:38px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-weight:900;font-size:15px;color:#fff;background:linear-gradient(135deg,#ff7a1f,#ff2f6d);margin-bottom:14px;box-shadow:0 8px 18px rgba(255,77,23,.24);}
  .step h3{margin:0 0 8px;font-size:16.5px;font-weight:800;color:#12151f;}
  .step p{margin:0;font-size:14.5px;color:#5b6276;}

  /* ---------- solutions ---------- */
  .solution-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
  .solution{background:#fff;border:1px solid rgba(22,26,38,.09);border-left:4px solid #ff6a1f;border-radius:14px;padding:20px;box-shadow:0 8px 22px rgba(24,20,15,.05);transition:transform .25s ease,box-shadow .25s ease,border-left-color .25s;}
  .solution:hover{transform:translateX(5px);box-shadow:0 16px 32px rgba(24,20,15,.1);}
  .solution:nth-child(2n){border-left-color:#2b46ff;}
  .solution:nth-child(3n){border-left-color:#00b894;}
  .solution h3{margin:0 0 8px;font-size:16.5px;font-weight:800;color:#12151f;}
  .solution p{margin:0;font-size:14.5px;color:#5b6276;}

  /* ---------- network ---------- */
  .network-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
  .network-item{background:linear-gradient(160deg,#fff7f1,#f2f5ff);border:1px solid rgba(22,26,38,.08);border-radius:16px;padding:20px;}
  .network-item h3{margin:0 0 8px;font-size:16px;font-weight:800;color:#12151f;}
  .network-item p{margin:0;font-size:14px;color:#5b6276;}

  /* ---------- process ---------- */
  .process-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
  .process-item{display:flex;gap:14px;background:#fff;border:1px solid rgba(22,26,38,.09);border-radius:16px;padding:18px;box-shadow:0 8px 22px rgba(24,20,15,.05);transition:transform .25s ease,box-shadow .25s ease;}
  .process-item:hover{transform:translateY(-3px);box-shadow:0 16px 30px rgba(24,20,15,.1);}
  .process-item .idx{flex:0 0 auto;width:32px;height:32px;border-radius:50%;background:#161a26;color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;}
  .process-item h3{margin:0 0 6px;font-size:16px;font-weight:800;color:#12151f;}
  .process-item p{margin:0;font-size:14px;color:#5b6276;}

  /* ---------- cases ---------- */
  .case-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
  .case-card{background:#fff;border:1px solid rgba(22,26,38,.09);border-radius:18px;overflow:hidden;box-shadow:0 10px 26px rgba(24,20,15,.07);transition:transform .25s ease,box-shadow .25s ease;}
  .case-card:hover{transform:translateY(-5px);box-shadow:0 20px 40px rgba(24,20,15,.13);}
  .case-media{aspect-ratio:16/10;background:#f2f3f8;overflow:hidden;}
  .case-media img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .5s ease;}
  .case-card:hover .case-media img{transform:scale(1.06);}
  .case-body{padding:18px;}
  .case-body h3{margin:0 0 8px;font-size:16.5px;font-weight:800;color:#12151f;}
  .case-body p{margin:0;font-size:14.5px;color:#5b6276;}

  /* ---------- review ---------- */
  .rating-card{display:flex;flex-wrap:wrap;align-items:center;gap:28px;padding:26px;border-radius:20px;background:linear-gradient(120deg,#fff4ec,#eef1ff);border:1.5px solid rgba(255,77,23,.28);margin-bottom:24px;box-shadow:0 14px 34px rgba(255,110,80,.12);}
  .rating-score{font-size:48px;font-weight:900;line-height:1;color:#e63c0a;letter-spacing:-2px;}
  .rating-score small{font-size:16px;font-weight:700;color:#5b6276;letter-spacing:0;margin-left:4px;}
  .rating-info{flex:1 1 260px;min-width:220px;}
  .stars{color:#ff9d00;letter-spacing:4px;font-size:21px;line-height:1;}
  .rating-info p{margin:8px 0 0;font-size:14.5px;color:#3b4156;}
  .table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:16px;border:1px solid rgba(22,26,38,.1);background:#fff;box-shadow:0 10px 28px rgba(24,20,15,.06);}
  table{width:100%;border-collapse:collapse;min-width:660px;font-size:14.5px;}
  caption{caption-side:top;text-align:left;padding:16px 18px 0;font-size:13.5px;color:#6a7186;}
  thead th{background:linear-gradient(120deg,#fff3ea,#eef2ff);color:#12151f;font-weight:800;text-align:left;padding:14px 16px;border-bottom:1px solid rgba(22,26,38,.09);white-space:nowrap;}
  tbody td{padding:14px 16px;border-bottom:1px solid rgba(22,26,38,.07);color:#3b4156;vertical-align:top;}
  tbody tr:hover td{background:rgba(255,77,23,.05);}
  tbody td:first-child{font-weight:700;color:#12151f;}
  tbody tr:last-child td{border-bottom:none;}
  .cell-good{color:#0a8f6e;font-weight:700;}

  /* ---------- price ---------- */
  .price-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
  .price-card{background:#fff;border:1px solid rgba(22,26,38,.09);border-radius:18px;padding:24px;box-shadow:0 8px 24px rgba(24,20,15,.05);transition:transform .25s ease,box-shadow .25s ease;}
  .price-card:hover{transform:translateY(-4px);box-shadow:0 18px 36px rgba(24,20,15,.11);}
  .price-card h3{margin:0 0 6px;font-size:17px;font-weight:800;color:#12151f;}
  .price-tag{margin:0 0 16px;font-size:14px;font-weight:800;color:#e63c0a;}
  .price-card ul{margin:0;padding-left:18px;color:#5b6276;font-size:14.5px;}
  .price-card li{margin-bottom:8px;}
  .price-card li:last-child{margin-bottom:0;}
  .price-card--hl{background:linear-gradient(165deg,#fff5ee,#eef2ff);border:1.5px solid rgba(255,77,23,.4);box-shadow:0 18px 40px rgba(255,110,80,.16);}
  .price-card--hl .price-tag{color:#2b46ff;}
  .price-note{margin:18px 0 0;font-size:13.5px;color:#6a7186;}

  /* ---------- help / wiki ---------- */
  .help-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
  .wiki-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
  .wiki-card{background:#fff;border:1px solid rgba(22,26,38,.09);border-radius:16px;padding:20px;box-shadow:0 8px 22px rgba(24,20,15,.05);transition:transform .25s ease,box-shadow .25s ease;}
  .wiki-card:hover{transform:translateY(-3px);box-shadow:0 16px 32px rgba(24,20,15,.1);}
  .wiki-card h3{margin:0 0 8px;font-size:16px;font-weight:800;color:#12151f;}
  .wiki-card p{margin:0;font-size:14px;color:#5b6276;}

  /* ---------- faq ---------- */
  .faq-list{max-width:920px;}
  .faq-item{background:#fff;border:1px solid rgba(22,26,38,.1);border-radius:14px;overflow:hidden;margin-bottom:12px;transition:border-color .25s,box-shadow .25s;}
  .faq-item.open{border-color:rgba(255,77,23,.42);box-shadow:0 12px 28px rgba(255,110,80,.12);}
  .faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 18px;background:none;border:0;font-family:inherit;font-size:15.5px;font-weight:700;color:#161a26;text-align:left;cursor:pointer;line-height:1.5;}
  .faq-q:hover{color:#e63c0a;}
  .faq-q .sign{flex:0 0 auto;width:24px;height:24px;border-radius:50%;background:rgba(255,77,23,.12);color:#e63c0a;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:800;transition:transform .3s ease,background .3s;}
  .faq-item.open .faq-q .sign{transform:rotate(45deg);background:#ff6a1f;color:#fff;}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease;}
  .faq-a p{margin:0;padding:0 18px 16px;font-size:14.5px;color:#5b6276;}

  /* ---------- reviews ---------- */
  .review-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
  .review-card{position:relative;background:#fff;border:1px solid rgba(22,26,38,.09);border-radius:18px;padding:24px 22px 20px;box-shadow:0 8px 24px rgba(24,20,15,.05);transition:transform .25s ease,box-shadow .25s ease;}
  .review-card:hover{transform:translateY(-4px);box-shadow:0 18px 36px rgba(24,20,15,.11);}
  .review-card::before{content:"“";position:absolute;top:6px;right:18px;font-size:52px;line-height:1;color:rgba(255,77,23,.16);font-family:Georgia,serif;}
  .review-card p{margin:0 0 16px;font-size:14.5px;color:#3b4156;position:relative;z-index:1;}
  .reviewer{display:flex;align-items:center;gap:10px;border-top:1px dashed rgba(22,26,38,.13);padding-top:14px;}
  .reviewer .avatar{width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,#ff7a1f,#ff2f6d);flex:0 0 auto;}
  .review-card:nth-child(2) .reviewer .avatar{background:linear-gradient(135deg,#2b46ff,#7a5cff);}
  .review-card:nth-child(3) .reviewer .avatar{background:linear-gradient(135deg,#00b894,#00c2ff);}
  .review-card:nth-child(4) .reviewer .avatar{background:linear-gradient(135deg,#ff9d00,#ff5f6d);}
  .review-card:nth-child(5) .reviewer .avatar{background:linear-gradient(135deg,#7a5cff,#2b46ff);}
  .review-card:nth-child(6) .reviewer .avatar{background:linear-gradient(135deg,#00c2ff,#2b46ff);}
  .reviewer strong{display:block;font-size:14.5px;color:#12151f;}
  .reviewer span{font-size:13px;color:#6a7186;}

  /* ---------- news ---------- */
  .news-list{display:grid;gap:12px;}
  .news-item{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 20px;background:#fff;border:1px solid rgba(22,26,38,.09);border-radius:14px;text-decoration:none;color:#161a26;font-size:15px;font-weight:700;transition:transform .22s ease,border-color .22s,color .22s,box-shadow .22s;}
  .news-item:hover{transform:translateX(5px);border-color:rgba(255,77,23,.42);color:#e63c0a;box-shadow:0 12px 26px rgba(255,110,80,.12);}
  .news-item .arrow{flex:0 0 auto;font-size:16px;color:#ff6a1f;}

  /* ---------- form ---------- */
  .form-card{background:#fff;border:1px solid rgba(22,26,38,.1);border-radius:20px;padding:28px;box-shadow:0 18px 44px rgba(24,20,15,.09);}
  .form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
  .field{display:flex;flex-direction:column;gap:7px;}
  .field.full{grid-column:1 / -1;}
  .field label{font-size:13.5px;font-weight:800;color:#2c3242;letter-spacing:.2px;}
  .field input,.field select,.field textarea{width:100%;padding:12px 14px;border:1px solid rgba(22,26,38,.17);border-radius:12px;background:#fff;font-size:15px;font-family:inherit;color:#161a26;transition:border-color .2s,box-shadow .2s;}
  .field textarea{min-height:120px;resize:vertical;}
  .field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:#ff6a1f;box-shadow:0 0 0 3px rgba(255,77,23,.15);}
  .form-actions{grid-column:1 / -1;display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:4px;}
  .form-actions small{font-size:13px;color:#6a7186;}

  /* ---------- contact ---------- */
  .contact-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:24px;align-items:start;}
  .contact-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;}
  .contact-item{background:#fff;border:1px solid rgba(22,26,38,.09);border-radius:14px;padding:16px 18px;transition:transform .25s ease,box-shadow .25s ease;}
  .contact-item:hover{transform:translateY(-3px);box-shadow:0 14px 28px rgba(24,20,15,.1);}
  .contact-item span{display:block;font-size:13px;color:#6a7186;margin-bottom:4px;}
  .contact-item strong{display:block;font-size:15px;color:#12151f;word-break:break-all;}
  .contact-item a{text-decoration:none;color:#e63c0a;font-weight:800;}
  .qr-card{background:#fff;border:1px solid rgba(22,26,38,.09);border-radius:18px;padding:20px;text-align:center;box-shadow:0 12px 30px rgba(24,20,15,.08);}
  .qr-card .qr-box{aspect-ratio:1/1;border-radius:12px;overflow:hidden;background:#f5f6fa;}
  .qr-card img{width:100%;height:100%;object-fit:contain;display:block;}
  .qr-card p{margin:12px 0 0;font-size:14px;color:#5b6276;}

  /* ---------- join ---------- */
  .join-card{position:relative;overflow:hidden;border-radius:22px;padding:34px;background:linear-gradient(120deg,#161a26,#232a44 55%,#2b2f57);color:#fff;box-shadow:0 22px 48px rgba(22,26,38,.28);}
  .join-card::after{content:"";position:absolute;width:320px;height:320px;right:-110px;top:-130px;border-radius:50%;background:radial-gradient(circle,rgba(255,122,31,.42),transparent 70%);}
  .join-card>*{position:relative;z-index:1;}
  .join-card h2{margin:0 0 12px;font-size:clamp(22px,2.6vw,30px);font-weight:900;color:#fff;letter-spacing:-.4px;}
  .join-card p{margin:0 0 22px;font-size:15px;color:#d6d9e6;max-width:760px;}
  .join-actions{display:flex;flex-wrap:wrap;gap:14px;}
  .join-card .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.45);}
  .join-card .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}

  /* ---------- friend links ---------- */
  .friend-links{display:flex;flex-wrap:wrap;gap:10px;}
  .friend-links a{font-size:13.5px;color:#3b4156;text-decoration:none;background:#fff;border:1px solid rgba(22,26,38,.11);border-radius:999px;padding:7px 15px;transition:.22s;}
  .friend-links a:hover{color:#e63c0a;border-color:#ff6a1f;background:#fff6f1;transform:translateY(-2px);}

  /* ---------- footer ---------- */
  .site-footer{background:#141824;color:#c2c7d6;padding:34px 0;border-top:1px solid rgba(255,255,255,.08);}
  .footer-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;}
  .footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:16px;}
  .footer-brand .fx{width:9px;height:9px;border-radius:50%;background:linear-gradient(135deg,#ff7a1f,#ff2f6d);}
  .site-footer p{margin:0;font-size:13.5px;color:#9aa1b5;}
  .site-footer a{color:#ffb08a;text-decoration:none;}
  .site-footer a:hover{color:#fff;text-decoration:underline;}

  /* ---------- floating ---------- */
  .float-stack{position:fixed;right:18px;bottom:22px;z-index:90;display:flex;flex-direction:column;align-items:flex-end;gap:12px;}
  .float-btn{width:50px;height:50px;border-radius:50%;border:0;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:800;color:#fff;background:linear-gradient(135deg,#ff7a1f,#ff2f6d);box-shadow:0 12px 26px rgba(255,64,64,.34);transition:transform .22s ease,box-shadow .22s ease;}
  .float-btn:hover{transform:translateY(-3px);box-shadow:0 16px 32px rgba(255,64,64,.42);}
  .float-btn--top{background:#161a26;color:#fff;box-shadow:0 10px 24px rgba(22,26,38,.3);opacity:0;pointer-events:none;transition:opacity .25s,transform .22s;}
  .float-btn--top.show{opacity:1;pointer-events:auto;}
  .cs-panel{width:230px;background:#fff;border:1px solid rgba(22,26,38,.12);border-radius:16px;padding:14px;box-shadow:0 20px 44px rgba(24,20,15,.18);display:none;}
  .cs-panel.show{display:block;animation:pop .26s ease;}
  @keyframes pop{from{opacity:0;transform:translateY(8px) scale(.97);}to{opacity:1;transform:none;}}
  .cs-panel .cs-img{aspect-ratio:1/1;border-radius:10px;overflow:hidden;background:#f5f6fa;}
  .cs-panel .cs-img img{width:100%;height:100%;object-fit:contain;display:block;}
  .cs-panel p{margin:10px 0 0;font-size:12.5px;color:#5b6276;text-align:center;line-height:1.6;}
  .cs-panel strong{color:#12151f;}

  /* ---------- reveal ---------- */
  .reveal{opacity:0;transform:translateY(20px);transition:opacity .6s ease,transform .6s ease;}
  .reveal.in{opacity:1;transform:none;}

  /* ---------- responsive ---------- */
  @media (max-width:1040px){
    .nav-toggle{display:flex;}
    .nav-cta{display:none;}
    .nav-links{position:absolute;left:-20px;right:-20px;top:100%;flex-direction:column;align-items:stretch;gap:0;background:#fffdfa;border-bottom:1px solid rgba(22,26,38,.1);box-shadow:0 20px 34px rgba(20,24,35,.12);padding:10px 20px 18px;display:none;}
    .nav-links.open{display:flex;}
    .nav-links a{padding:12px 6px;font-size:15px;border-radius:8px;}
    .service-grid,.help-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .gallery{grid-template-columns:repeat(2,minmax(0,1fr));}
    .solution-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .network-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .case-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .review-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .price-grid{grid-template-columns:1fr;}
    .wiki-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  }
  @media (max-width:920px){
    .hero-grid{grid-template-columns:1fr;gap:30px;}
    .hero{padding:40px 0 36px;}
    .section{padding:44px 0;}
    .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
    .contact-grid{grid-template-columns:1fr;}
  }
  @media (max-width:680px){
    .steps{grid-template-columns:1fr;}
    .process-grid{grid-template-columns:1fr;}
    .service-grid,.help-grid,.gallery,.solution-grid,.network-grid,.case-grid,.review-grid,.wiki-grid{grid-template-columns:1fr;}
    .form-grid{grid-template-columns:1fr;}
    .contact-list{grid-template-columns:1fr;}
    .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .hero-actions .btn{flex:1 1 auto;}
    .rating-card{padding:20px;gap:18px;}
    .join-card{padding:26px 22px;}
    .form-card{padding:20px;}
    .footer-inner{flex-direction:column;align-items:flex-start;}
  }
  @media (prefers-reduced-motion:reduce){
    html{scroll-behavior:auto;}
    .model-track{animation:none;}
    .reveal{opacity:1;transform:none;transition:none;}
    .btn,.card,.step,.case-card,.review-card,.news-item,.solution{transition:none;}
  }