:root{
    --blue:#2b5cff;
    --blue-d:#1b3fd0;
    --cyan:#12d6c4;
    --purple:#7b4dff;
    --pink:#ff5f9e;
    --orange:#ff9a3c;
    --ink:#0f1a35;
    --ink-2:#3a4763;
    --ink-3:#6c7891;
    --line:#e6eaf5;
    --bg:#f6f8ff;
    --white:#ffffff;
    --radius:16px;
    --shadow:0 10px 30px rgba(31,58,140,.10);
    --shadow-hover:0 18px 44px rgba(31,58,140,.18);
    --grad:linear-gradient(120deg,#2b5cff 0%,#7b4dff 45%,#12d6c4 100%);
    --grad-soft:linear-gradient(135deg,#eef2ff 0%,#f4fbff 60%,#e9fff9 100%);
  }
  *{margin:0;padding:0;box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;
    color:var(--ink);background:var(--white);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;}
  button{font-family:inherit;cursor:pointer;}

  .container{width:min(1200px,92%);margin:0 auto;}
  .section{padding:84px 0;}
  .section.alt{background:var(--bg);}
  .section-head{max-width:760px;margin:0 auto 48px;text-align:center;}
  .eyebrow{
    display:inline-block;font-size:13px;font-weight:700;letter-spacing:1px;color:var(--blue);
    background:linear-gradient(135deg,rgba(43,92,255,.10),rgba(18,214,196,.12));
    padding:6px 16px;border-radius:999px;margin-bottom:16px;
  }
  .section-head h2{font-size:clamp(24px,3.2vw,36px);line-height:1.3;letter-spacing:.3px;}
  .section-head p{margin-top:14px;color:var(--ink-3);font-size:16px;}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:13px 28px;border-radius:999px;font-size:15px;font-weight:600;border:none;
    transition:transform .25s ease,box-shadow .25s ease,background .25s ease;white-space:nowrap;
  }
  .btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(43,92,255,.35);}
  .btn-primary:hover{transform:translateY(-3px);box-shadow:0 16px 34px rgba(43,92,255,.45);}
  .btn-ghost{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.5);}
  .btn-ghost:hover{background:rgba(255,255,255,.24);transform:translateY(-3px);}
  .btn-outline{background:#fff;color:var(--blue);border:1.5px solid rgba(43,92,255,.35);}
  .btn-outline:hover{background:#f0f4ff;transform:translateY(-3px);box-shadow:var(--shadow);}
  .btn:active{transform:scale(.97);}

  /* Header */
  header.site-header{
    position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);
    backdrop-filter:blur(14px);border-bottom:1px solid var(--line);
  }
  .nav-wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px;}
  .brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:.5px;}
  .brand img{height:38px;width:auto;}
  .nav-links{display:flex;align-items:center;gap:0;flex:1;justify-content:center;}
  .nav-links a{
    padding:8px 11px;font-size:14.5px;color:var(--ink-2);font-weight:500;border-radius:8px;
    transition:color .2s,background .2s;white-space:nowrap;
  }
  .nav-links a:hover{color:var(--blue);background:rgba(43,92,255,.08);}
  .nav-cta{display:flex;align-items:center;gap:10px;}
  .nav-cta .btn{padding:10px 20px;font-size:14px;}
  .menu-toggle{display:none;background:none;border:none;width:42px;height:42px;border-radius:10px;position:relative;}
  .menu-toggle span{display:block;width:22px;height:2px;background:var(--ink);margin:5px auto;border-radius:2px;transition:.3s;}
  .menu-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .menu-toggle.open span:nth-child(2){opacity:0;}
  .menu-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

  /* Hero */
  .hero{
    position:relative;overflow:hidden;color:#fff;
    background:linear-gradient(125deg,#1b3fd0 0%,#4230c9 40%,#1a7fd6 72%,#12bfae 100%);
  }
  .hero::before,.hero::after{content:"";position:absolute;border-radius:50%;filter:blur(60px);opacity:.5;pointer-events:none;}
  .hero::before{width:520px;height:520px;background:radial-gradient(circle,#7b4dff,transparent 70%);top:-160px;right:-100px;}
  .hero::after{width:460px;height:460px;background:radial-gradient(circle,#12d6c4,transparent 70%);bottom:-180px;left:-120px;}
  .hero-grid{
    position:absolute;inset:0;
    background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
    background-size:56px 56px;mask-image:radial-gradient(circle at 50% 40%,#000 20%,transparent 78%);
  }
  .hero-inner{position:relative;z-index:2;padding:92px 0 96px;}
  .hero-badge{
    display:inline-flex;align-items:center;gap:8px;font-size:13.5px;font-weight:600;
    background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.35);
    padding:7px 18px;border-radius:999px;margin-bottom:26px;backdrop-filter:blur(6px);
  }
  .hero-badge .dot{width:8px;height:8px;border-radius:50%;background:#12ffb0;box-shadow:0 0 0 4px rgba(18,214,196,.35);}
  .hero h1{font-size:clamp(28px,4.4vw,52px);line-height:1.22;font-weight:800;letter-spacing:.5px;max-width:900px;}
  .hero h1 .grad-text{background:linear-gradient(100deg,#9fe8ff,#b8ffe9 60%,#ffe6a8);-webkit-background-clip:text;background-clip:text;color:transparent;}
  .hero-sub{margin-top:22px;font-size:clamp(15px,1.6vw,18px);color:rgba(255,255,255,.9);max-width:700px;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:38px;}
  .hero-actions .btn-primary{background:#fff;color:var(--blue-d);box-shadow:0 14px 30px rgba(0,0,0,.22);}
  .hero-actions .btn-primary:hover{box-shadow:0 20px 42px rgba(0,0,0,.3);}
  .hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:64px;}
  .stat-card{
    background:rgba(255,255,255,.11);border:1px solid rgba(255,255,255,.24);border-radius:var(--radius);
    padding:22px 20px;backdrop-filter:blur(8px);transition:transform .3s,background .3s;
  }
  .stat-card:hover{transform:translateY(-6px);background:rgba(255,255,255,.18);}
  .stat-card .num{font-size:clamp(24px,2.6vw,32px);font-weight:800;letter-spacing:.5px;}
  .stat-card .num em{font-style:normal;font-size:16px;margin-left:2px;}
  .stat-card .label{margin-top:6px;font-size:13.5px;color:rgba(255,255,255,.82);}

  /* Platform intro */
  .intro-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:52px;align-items:center;}
  .intro-text h2{font-size:clamp(24px,3vw,34px);line-height:1.32;margin-bottom:20px;}
  .intro-text p{color:var(--ink-3);margin-bottom:14px;font-size:15.5px;}
  .intro-points{display:grid;grid-template-columns:1fr 1fr;gap:12px 22px;margin-top:24px;}
  .intro-points li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:var(--ink-2);}
  .intro-points li::before{
    content:"";width:18px;height:18px;flex:0 0 18px;margin-top:3px;border-radius:50%;
    background:var(--grad);position:relative;
  }
  .intro-points li::after{
    content:"";position:absolute;
  }
  .intro-visual{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
  .intro-visual img{border-radius:var(--radius);object-fit:cover;width:100%;box-shadow:var(--shadow);transition:transform .35s,box-shadow .35s;}
  .intro-visual img:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);}
  .intro-visual .tall{grid-column:1/-1;aspect-ratio:16/9;}
  .intro-visual .sq{aspect-ratio:1/1;}

  /* Services */
  .cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
  .scard{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 26px;
    transition:transform .3s,box-shadow .3s,border-color .3s;position:relative;overflow:hidden;
  }
  .scard::before{
    content:"";position:absolute;inset:0 auto auto 0;width:100%;height:4px;background:var(--grad);
    transform:scaleX(0);transform-origin:left;transition:transform .35s;
  }
  .scard:hover{transform:translateY(-8px);box-shadow:var(--shadow-hover);border-color:transparent;}
  .scard:hover::before{transform:scaleX(1);}
  .scard .ic{
    width:50px;height:50px;border-radius:14px;display:flex;align-items:center;justify-content:center;
    background:linear-gradient(135deg,rgba(43,92,255,.12),rgba(18,214,196,.14));margin-bottom:18px;color:var(--blue);
  }
  .scard h3{font-size:18px;margin-bottom:10px;}
  .scard p{font-size:14px;color:var(--ink-3);}
  .scard .tagline{margin-top:14px;font-size:12.5px;color:var(--blue);font-weight:600;}

  /* Media showcase */
  .showcase{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
  .showcase figure{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);}
  .showcase figure img{width:100%;height:100%;object-fit:cover;transition:transform .5s;}
  .showcase figure:hover img{transform:scale(1.06);}
  .showcase figcaption{
    position:absolute;left:0;right:0;bottom:0;padding:14px 18px;color:#fff;font-size:14px;font-weight:600;
    background:linear-gradient(to top,rgba(9,20,50,.82),transparent);
  }
  .showcase .wide{grid-column:1/-1;aspect-ratio:21/8;}
  .showcase .wide img{aspect-ratio:21/8;}
  .showcase .sq{aspect-ratio:4/3;}
  .showcase .sq img{aspect-ratio:4/3;}

  /* Steps */
  .steps{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;position:relative;}
  .step{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 20px;text-align:center;
    transition:transform .3s,box-shadow .3s;
  }
  .step:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);}
  .step .no{
    width:44px;height:44px;border-radius:50%;margin:0 auto 14px;display:flex;align-items:center;justify-content:center;
    font-weight:800;color:#fff;background:var(--grad);box-shadow:0 8px 18px rgba(43,92,255,.32);
  }
  .step h4{font-size:16px;margin-bottom:8px;}
  .step p{font-size:13.5px;color:var(--ink-3);}

  /* timeline */
  .timeline{position:relative;max-width:880px;margin:0 auto;padding-left:0;}
  .timeline::before{content:"";position:absolute;left:50%;top:0;bottom:0;width:3px;background:linear-gradient(var(--blue),var(--cyan));transform:translateX(-50%);border-radius:3px;}
  .tl-item{position:relative;width:50%;padding:0 40px 42px;}
  .tl-item:nth-child(odd){left:0;text-align:right;}
  .tl-item:nth-child(even){left:50%;text-align:left;}
  .tl-item .dot{position:absolute;top:6px;width:16px;height:16px;border-radius:50%;background:#fff;border:4px solid var(--blue);box-shadow:0 0 0 4px rgba(43,92,255,.15);}
  .tl-item:nth-child(odd) .dot{right:-8px;}
  .tl-item:nth-child(even) .dot{left:-8px;}
  .tl-item h4{font-size:17px;margin-bottom:6px;}
  .tl-item span{font-size:12.5px;color:var(--blue);font-weight:700;}
  .tl-item p{font-size:14px;color:var(--ink-3);margin-top:6px;}

  /* compare table */
  .table-wrap{overflow-x:auto;border-radius:var(--radius);box-shadow:var(--shadow);background:#fff;}
  table.cmp{width:100%;border-collapse:collapse;min-width:760px;font-size:14.5px;}
  table.cmp th,table.cmp td{padding:16px 18px;text-align:left;border-bottom:1px solid var(--line);}
  table.cmp thead th{background:linear-gradient(120deg,#1b3fd0,#5a3ce0);color:#fff;font-weight:600;font-size:14px;}
  table.cmp thead th:nth-child(2){background:linear-gradient(120deg,#12b9b0,#2b7cff);}
  table.cmp tbody tr:hover{background:#f5f8ff;}
  table.cmp td.best{color:var(--blue);font-weight:700;}
  .rate-box{display:flex;flex-wrap:wrap;gap:20px;justify-content:center;align-items:center;margin-bottom:36px;}
  .rate-score{
    background:var(--grad);color:#fff;border-radius:20px;padding:26px 40px;text-align:center;
    box-shadow:0 16px 36px rgba(43,92,255,.32);
  }
  .rate-score .big{font-size:52px;font-weight:800;line-height:1;}
  .rate-score .big small{font-size:18px;font-weight:600;opacity:.85;}
  .rate-score .stars{font-size:20px;letter-spacing:3px;margin-top:8px;color:#ffe08a;}
  .rate-score .cap{font-size:13.5px;opacity:.9;margin-top:4px;}

  /* price */
  .price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
  .price-card{
    background:#fff;border:1px solid var(--line);border-radius:20px;padding:32px 28px;transition:transform .3s,box-shadow .3s;
  }
  .price-card.best{border:2px solid transparent;background:linear-gradient(#fff,#fff) padding-box,var(--grad) border-box;box-shadow:var(--shadow-hover);}
  .price-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-hover);}
  .price-card .ptag{display:inline-block;font-size:12px;font-weight:700;color:var(--blue);background:rgba(43,92,255,.1);padding:4px 12px;border-radius:999px;margin-bottom:14px;}
  .price-card h4{font-size:19px;margin-bottom:8px;}
  .price-card .p{font-size:34px;font-weight:800;color:var(--ink);margin:12px 0;}
  .price-card .p small{font-size:14px;color:var(--ink-3);font-weight:500;}
  .price-card ul{margin:18px 0 24px;}
  .price-card ul li{font-size:14px;color:var(--ink-2);padding:7px 0;border-bottom:1px dashed var(--line);display:flex;gap:8px;align-items:flex-start;}
  .price-card ul li::before{content:"✓";color:var(--cyan);font-weight:800;}
  .price-card .btn{width:100%;}

  /* comments */
  .comments{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
  .ccard{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;
    transition:transform .3s,box-shadow .3s;
  }
  .ccard:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);}
  .ccard .stars{color:#ffb400;letter-spacing:2px;font-size:14px;margin-bottom:12px;}
  .ccard p{font-size:14.5px;color:var(--ink-2);min-height:88px;}
  .ccard .who{display:flex;align-items:center;gap:12px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line);}
  .ccard .avatar{
    width:42px;height:42px;border-radius:50%;display:flex;align-items:center;justify-content:center;
    color:#fff;font-weight:700;font-size:15px;background:var(--grad);flex:0 0 42px;
  }
  .ccard .who b{font-size:14.5px;display:block;}
  .ccard .who span{font-size:12.5px;color:var(--ink-3);}

  /* tags */
  .tagcloud{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;}
  .tagcloud a{
    padding:9px 18px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13.5px;
    color:var(--ink-2);transition:.25s;
  }
  .tagcloud a:hover{background:var(--grad);color:#fff;border-color:transparent;transform:translateY(-3px);box-shadow:var(--shadow);}

  /* network */
  .network{display:grid;grid-template-columns:1.1fr 1fr;gap:44px;align-items:center;}
  .net-list{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
  .net-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;transition:.3s;}
  .net-item:hover{box-shadow:var(--shadow);transform:translateY(-4px);}
  .net-item b{display:block;font-size:15px;margin-bottom:4px;}
  .net-item span{font-size:13px;color:var(--ink-3);}

  /* case */
  .cases{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
  .case{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.3s;}
  .case:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);}
  .case .cover{aspect-ratio:16/10;background:var(--grad-soft);display:flex;align-items:center;justify-content:center;color:var(--blue);font-weight:700;font-size:15px;}
  .case .body{padding:18px 18px 22px;}
  .case h4{font-size:15.5px;margin-bottom:6px;}
  .case p{font-size:13px;color:var(--ink-3);}

  /* articles */
  .articles{display:grid;grid-template-columns:1.2fr 1fr;gap:34px;align-items:start;}
  .art-list{display:grid;gap:14px;}
  .art-item{
    display:flex;gap:16px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:14px;
    padding:18px 20px;transition:.25s;
  }
  .art-item:hover{border-color:rgba(43,92,255,.4);box-shadow:var(--shadow);transform:translateX(4px);}
  .art-item .idx{font-size:22px;font-weight:800;color:rgba(43,92,255,.25);flex:0 0 34px;}
  .art-item b{font-size:15px;display:block;}
  .art-item span{font-size:12.5px;color:var(--ink-3);}
  .art-aside{background:var(--grad-soft);border-radius:20px;padding:32px 28px;border:1px solid var(--line);}
  .art-aside h4{font-size:19px;margin-bottom:12px;}
  .art-aside p{font-size:14px;color:var(--ink-2);margin-bottom:18px;}
  .art-aside ul li{font-size:13.5px;color:var(--ink-2);padding:8px 0;border-bottom:1px dashed rgba(43,92,255,.2);}

  /* faq */
  .faq-wrap{max-width:900px;margin:0 auto;}
  .faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:14px;overflow:hidden;transition:.3s;}
  .faq-item.active{border-color:rgba(43,92,255,.4);box-shadow:var(--shadow);}
  .faq-q{
    width:100%;background:none;border:none;text-align:left;padding:20px 24px;font-size:15.5px;font-weight:600;
    display:flex;justify-content:space-between;align-items:center;gap:16px;color:var(--ink);
  }
  .faq-q .plus{width:26px;height:26px;flex:0 0 26px;border-radius:50%;background:rgba(43,92,255,.1);color:var(--blue);
    display:flex;align-items:center;justify-content:center;font-size:18px;transition:.3s;}
  .faq-item.active .plus{transform:rotate(45deg);background:var(--grad);color:#fff;}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease;}
  .faq-a p{padding:0 24px 22px;font-size:14.5px;color:var(--ink-3);}

  /* form */
  .form-wrap{display:grid;grid-template-columns:1fr 1.1fr;gap:44px;align-items:start;}
  .contact-info h3{font-size:24px;margin-bottom:18px;}
  .contact-info p{color:var(--ink-3);font-size:14.5px;margin-bottom:22px;}
  .ci-list li{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--line);font-size:14.5px;color:var(--ink-2);}
  .ci-list li b{color:var(--ink);min-width:78px;display:inline-block;}
  .qr-box{margin-top:22px;display:flex;align-items:center;gap:18px;background:var(--grad-soft);padding:18px;border-radius:14px;}
  .qr-box img{width:110px;height:110px;object-fit:cover;border-radius:10px;border:3px solid #fff;box-shadow:var(--shadow);}
  .qr-box span{font-size:13.5px;color:var(--ink-2);}
  form.req-form{background:#fff;border:1px solid var(--line);border-radius:20px;padding:34px 30px;box-shadow:var(--shadow);}
  .field{margin-bottom:18px;}
  .field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:7px;color:var(--ink-2);}
  .field input,.field select,.field textarea{
    width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font-size:14.5px;
    background:#fafbff;transition:.25s;font-family:inherit;color:var(--ink);
  }
  .field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--blue);background:#fff;box-shadow:0 0 0 4px rgba(43,92,255,.1);}
  .field textarea{resize:vertical;min-height:110px;}
  .form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
  form.req-form .btn{width:100%;margin-top:6px;}

  /* footer */
  footer.site-footer{background:#0b1428;color:rgba(255,255,255,.72);padding:70px 0 0;font-size:14px;}
  .f-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:46px;}
  footer h5{color:#fff;font-size:15.5px;margin-bottom:18px;}
  footer .fbrand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:19px;margin-bottom:16px;}
  footer .fbrand img{height:36px;}
  footer p{line-height:1.9;font-size:13.5px;}
  footer ul li{margin-bottom:10px;}
  footer ul li a{font-size:13.5px;color:rgba(255,255,255,.72);transition:.2s;display:inline-block;}
  footer ul li a:hover{color:#12d6c4;transform:translateX(3px);}
  .f-copy{border-top:1px solid rgba(255,255,255,.1);padding:22px 0;text-align:center;font-size:13px;color:rgba(255,255,255,.5);}
  .flinks{display:flex;flex-wrap:wrap;gap:8px 18px;justify-content:center;margin-top:10px;}

  /* floating */
  .float-kf{position:fixed;right:22px;bottom:90px;z-index:120;}
  .kf-btn{
    width:58px;height:58px;border-radius:50%;background:var(--grad);color:#fff;border:none;
    display:flex;align-items:center;justify-content:center;box-shadow:0 12px 26px rgba(43,92,255,.4);
    transition:transform .3s;
  }
  .kf-btn:hover{transform:scale(1.08);}
  .kf-panel{
    position:absolute;right:0;bottom:72px;width:250px;background:#fff;border-radius:16px;padding:18px;
    box-shadow:0 20px 50px rgba(15,26,53,.25);opacity:0;visibility:hidden;transform:translateY(10px);transition:.3s;text-align:center;
  }
  .kf-panel.show{opacity:1;visibility:visible;transform:translateY(0);}
  .kf-panel img{width:170px;height:170px;object-fit:cover;border-radius:12px;margin:0 auto 10px;}
  .kf-panel p{font-size:13px;color:var(--ink-3);}
  .back-top{
    position:fixed;right:22px;bottom:22px;z-index:120;width:48px;height:48px;border-radius:50%;
    background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);color:var(--blue);
    display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;visibility:hidden;transition:.3s;
  }
  .back-top.show{opacity:1;visibility:visible;}
  .back-top:hover{background:var(--blue);color:#fff;}

  /* reveal */
  .reveal{opacity:0;transform:translateY(30px);transition:opacity .7s ease,transform .7s ease;}
  .reveal.in{opacity:1;transform:none;}

  /* responsive */
  @media (max-width:1080px){
    .nav-links{display:none;}
    .menu-toggle{display:block;}
    .nav-cta .btn-outline{display:none;}
    .nav-links.open{
      display:flex;flex-direction:column;position:absolute;top:72px;left:0;right:0;background:#fff;
      padding:16px 6%;gap:4px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);
      max-height:70vh;overflow-y:auto;align-items:stretch;
    }
    .nav-links.open a{padding:12px 14px;border-radius:10px;}
    .nav-wrap{position:relative;}
    .cards{grid-template-columns:repeat(2,1fr);}
    .cases{grid-template-columns:repeat(2,1fr);}
    .steps{grid-template-columns:repeat(3,1fr);}
    .comments{grid-template-columns:repeat(2,1fr);}
    .price-grid{grid-template-columns:1fr;}
    .intro-grid,.network,.articles,.form-wrap{grid-template-columns:1fr;}
    .f-grid{grid-template-columns:1fr 1fr;}
  }
  @media (max-width:720px){
    .section{padding:56px 0;}
    .hero-inner{padding:64px 0 68px;}
    .hero-stats{grid-template-columns:1fr 1fr;gap:12px;margin-top:44px;}
    .cards,.cases,.comments,.steps{grid-template-columns:1fr;}
    .showcase{grid-template-columns:1fr 1fr;}
    .showcase .wide{grid-column:1/-1;}
    .intro-visual{grid-template-columns:1fr 1fr;}
    .timeline::before{left:10px;}
    .tl-item{width:100%;left:0 !important;text-align:left !important;padding:0 0 30px 38px;}
    .tl-item .dot{left:3px !important;right:auto !important;}
    .form-row{grid-template-columns:1fr;}
    .f-grid{grid-template-columns:1fr;gap:28px;}
    .nav-cta .btn{padding:9px 16px;font-size:13px;}
    .qr-box{flex-direction:column;text-align:center;}
    .float-kf{right:14px;bottom:80px;}
    .back-top{right:14px;bottom:14px;}
    .net-list{grid-template-columns:1fr;}
    .intro-points{grid-template-columns:1fr;}
  }