:root{
    --blue:#1f5eff;
    --blue-deep:#0b2e8f;
    --blue-soft:#eaf1ff;
    --blue-mid:#4d7dff;
    --ink:#12193a;
    --ink-2:#3c4668;
    --ink-3:#6b7699;
    --line:#e2e8f7;
    --bg:#f4f7ff;
    --bg-2:#ffffff;
    --radius:18px;
    --radius-sm:12px;
    --shadow-sm:0 4px 16px rgba(20,50,140,.07);
    --shadow-md:0 14px 40px rgba(20,50,140,.12);
    --shadow-lg:0 24px 60px rgba(20,50,140,.18);
    --font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  }
  *{margin:0;padding:0;box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    font-family:var(--font);
    color:var(--ink);
    background:var(--bg);
    line-height:1.7;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  a{color:inherit;text-decoration:none}
  img{display:block;max-width:100%;height:auto}
  ul{list-style:none}
  .container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding:0 24px;
  }
  section{position:relative}
  .sec-pad{padding:88px 0}
  .sec-eyebrow{
    display:inline-block;
    font-size:13px;
    letter-spacing:.16em;
    color:var(--blue);
    font-weight:700;
    background:var(--blue-soft);
    padding:6px 16px;
    border-radius:99px;
    margin-bottom:16px;
  }
  .sec-title{
    font-size:clamp(24px,3.4vw,36px);
    font-weight:800;
    color:var(--ink);
    letter-spacing:-.01em;
    line-height:1.3;
    margin-bottom:14px;
  }
  .sec-sub{
    font-size:15.5px;
    color:var(--ink-2);
    max-width:760px;
  }
  .sec-head{margin-bottom:46px}
  /* ============ Header ============ */
  .site-header{
    position:sticky;
    top:0;
    z-index:1000;
    background:rgba(255,255,255,.92);
    backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);
    transition:box-shadow .3s ease;
  }
  .site-header.scrolled{box-shadow:0 6px 24px rgba(20,50,140,.08)}
  .nav-wrap{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:20px;
    min-height:72px;
  }
  .brand{
    display:flex;
    align-items:center;
    gap:10px;
    flex-shrink:0;
  }
  .brand img{width:120px}
  .nav-links{
    display:flex;
    align-items:center;
    gap:0;
    flex-wrap:wrap;
  }
  .nav-links a{
    display:block;
    font-size:14.5px;
    color:var(--ink-2);
    font-weight:600;
    padding:8px 12px;
    border-radius:8px;
    transition:color .25s ease,background .25s ease;
    white-space:nowrap;
  }
  .nav-links a:hover{color:var(--blue);background:var(--blue-soft)}
  .nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    font-weight:700;
    font-size:15px;
    padding:12px 26px;
    border-radius:10px;
    border:none;
    cursor:pointer;
    transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease;
    font-family:var(--font);
    white-space:nowrap;
  }
  .btn-primary{
    background:linear-gradient(135deg,var(--blue) 0%,var(--blue-mid) 100%);
    color:#fff;
    box-shadow:0 8px 22px rgba(31,94,255,.32);
  }
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(31,94,255,.42)}
  .btn-ghost{
    background:#fff;
    color:var(--blue-deep);
    border:1.5px solid var(--line);
  }
  .btn-ghost:hover{border-color:var(--blue);color:var(--blue);transform:translateY(-2px)}
  .btn-light{
    background:rgba(255,255,255,.15);
    color:#fff;
    border:1.5px solid rgba(255,255,255,.45);
  }
  .btn-light:hover{background:rgba(255,255,255,.26);transform:translateY(-2px)}
  .nav-toggle{
    display:none;
    width:44px;height:44px;
    border-radius:10px;
    border:1.5px solid var(--line);
    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(--ink);
    border-radius:2px;transition:.3s ease;
  }
  .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)}
  .mobile-menu{
    display:none;
    flex-direction:column;
    gap:2px;
    padding:12px 0 20px;
    border-top:1px solid var(--line);
  }
  .mobile-menu.open{display:flex}
  .mobile-menu a{
    padding:12px 8px;
    font-size:15px;
    font-weight:600;
    color:var(--ink-2);
    border-radius:8px;
  }
  .mobile-menu a:hover{background:var(--blue-soft);color:var(--blue)}
  /* ============ Hero ============ */
  .hero{
    position:relative;
    overflow:hidden;
    background:
      radial-gradient(circle at 82% 12%,rgba(77,125,255,.28),transparent 42%),
      radial-gradient(circle at 10% 88%,rgba(31,94,255,.20),transparent 46%),
      linear-gradient(150deg,#08205e 0%,#0d338f 46%,#1250d8 100%);
    color:#fff;
    padding:96px 0 110px;
  }
  .hero::before{
    content:"";
    position:absolute;
    inset:0;
    background-image:
      linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),
      linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);
    background-size:56px 56px;
    mask-image:radial-gradient(circle at 50% 40%,#000 30%,transparent 82%);
    pointer-events:none;
  }
  .hero-orb{
    position:absolute;
    border-radius:50%;
    filter:blur(50px);
    opacity:.55;
    pointer-events:none;
    animation:floatOrb 12s ease-in-out infinite;
  }
  .hero-orb.o1{width:300px;height:300px;background:#2f6bff;top:-70px;right:6%;}
  .hero-orb.o2{width:220px;height:220px;background:#00c2ff;bottom:-60px;left:4%;animation-delay:-4s;}
  @keyframes floatOrb{
    0%,100%{transform:translate3d(0,0,0) scale(1)}
    50%{transform:translate3d(0,-26px,0) scale(1.08)}
  }
  .hero-inner{
    position:relative;
    z-index:2;
    display:grid;
    grid-template-columns:1.15fr .85fr;
    gap:56px;
    align-items:center;
  }
  .hero h1{
    font-size:clamp(30px,4.6vw,52px);
    line-height:1.22;
    font-weight:900;
    letter-spacing:-.02em;
    margin-bottom:22px;
  }
  .hero h1 .hl{
    color:#8fc0ff;
    position:relative;
    display:inline-block;
  }
  .hero-lead{
    font-size:16.5px;
    color:rgba(255,255,255,.86);
    max-width:560px;
    margin-bottom:32px;
  }
  .hero-cta{
    display:flex;
    flex-wrap:wrap;
    gap:14px;
    margin-bottom:36px;
  }
  .hero-tags{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
  }
  .hero-tags span{
    font-size:13px;
    padding:6px 14px;
    border-radius:99px;
    background:rgba(255,255,255,.10);
    border:1px solid rgba(255,255,255,.22);
    color:rgba(255,255,255,.92);
    backdrop-filter:blur(4px);
  }
  .hero-panel{
    display:grid;
    gap:16px;
  }
  .panel-card{
    background:rgba(255,255,255,.10);
    border:1px solid rgba(255,255,255,.20);
    border-radius:var(--radius);
    padding:22px 24px;
    backdrop-filter:blur(12px);
    transition:transform .3s ease,background .3s ease,border-color .3s ease;
  }
  .panel-card:hover{transform:translateY(-4px);background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.4)}
  .panel-card .pc-label{
    font-size:12.5px;
    letter-spacing:.14em;
    color:rgba(255,255,255,.68);
    font-weight:700;
    margin-bottom:8px;
  }
  .panel-card .pc-value{
    font-size:26px;
    font-weight:900;
    color:#fff;
    line-height:1.2;
  }
  .panel-card .pc-desc{
    font-size:13.5px;
    color:rgba(255,255,255,.76);
    margin-top:6px;
  }
  .hero-mini{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:16px;
  }
  .hero-mini .panel-card{padding:18px 20px}
  .hero-mini .pc-value{font-size:20px}
  @keyframes riseIn{
    from{opacity:0;transform:translateY(26px)}
    to{opacity:1;transform:translateY(0)}
  }
  .hero-copy > *{animation:riseIn .8s cubic-bezier(.22,.68,.36,1) both}
  .hero-copy > *:nth-child(2){animation-delay:.08s}
  .hero-copy > *:nth-child(3){animation-delay:.16s}
  .hero-copy > *:nth-child(4){animation-delay:.24s}
  .hero-copy > *:nth-child(5){animation-delay:.32s}
  .hero-panel{animation:riseIn 1s cubic-bezier(.22,.68,.36,1) .2s both}
  /* ============ Stats band ============ */
  .stats-band{
    margin-top:-56px;
    position:relative;
    z-index:5;
  }
  .stats-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:0;
    background:#fff;
    border-radius:22px;
    box-shadow:var(--shadow-md);
    overflow:hidden;
    border:1px solid var(--line);
  }
  .stat-item{
    padding:30px 24px;
    text-align:center;
    border-right:1px solid var(--line);
    transition:background .3s ease;
  }
  .stat-item:last-child{border-right:none}
  .stat-item:hover{background:var(--blue-soft)}
  .stat-num{
    font-size:30px;
    font-weight:900;
    color:var(--blue);
    line-height:1.2;
    letter-spacing:-.02em;
  }
  .stat-label{font-size:14px;color:var(--ink-2);margin-top:6px;font-weight:600}
  /* ============ About ============ */
  .about-grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:48px;
    align-items:start;
  }
  .about-text p{
    font-size:15.5px;
    color:var(--ink-2);
    margin-bottom:18px;
  }
  .about-points{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:14px;
    margin-top:26px;
  }
  .about-point{
    display:flex;
    gap:12px;
    align-items:flex-start;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-sm);
    padding:16px;
    transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  }
  .about-point:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm);border-color:#bcd0ff}
  .about-point .dot{
    width:8px;height:8px;border-radius:50%;
    background:var(--blue);
    margin-top:8px;
    flex-shrink:0;
    box-shadow:0 0 0 4px rgba(31,94,255,.14);
  }
  .about-point strong{display:block;font-size:14.5px;margin-bottom:2px;color:var(--ink)}
  .about-point span{font-size:13px;color:var(--ink-3)}
  .about-visual{
    background:linear-gradient(160deg,#fff 0%,#eef3ff 100%);
    border:1px solid var(--line);
    border-radius:22px;
    padding:30px;
    box-shadow:var(--shadow-sm);
  }
  .about-visual h3{
    font-size:18px;
    margin-bottom:20px;
    color:var(--ink);
    font-weight:800;
  }
  .model-list{
    display:flex;
    flex-wrap:wrap;
    gap:9px;
  }
  .model-chip{
    font-size:12.5px;
    padding:6px 12px;
    border-radius:8px;
    background:#fff;
    border:1px solid var(--line);
    color:var(--ink-2);
    font-weight:600;
    transition:.22s ease;
  }
  .model-chip:hover{background:var(--blue);color:#fff;border-color:var(--blue);transform:translateY(-2px)}
  /* ============ Services ============ */
  .services{background:linear-gradient(180deg,#fff 0%,var(--bg) 100%)}
  .service-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:22px;
  }
  .svc-card{
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius);
    padding:28px 26px;
    position:relative;
    overflow:hidden;
    transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
  }
  .svc-card::after{
    content:"";
    position:absolute;
    top:0;left:0;
    width:100%;height:3px;
    background:linear-gradient(90deg,var(--blue),#5ea8ff);
    transform:scaleX(0);
    transform-origin:left;
    transition:transform .35s ease;
  }
  .svc-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:#c4d6ff}
  .svc-card:hover::after{transform:scaleX(1)}
  .svc-icon{
    width:48px;height:48px;
    border-radius:14px;
    background:linear-gradient(135deg,var(--blue-soft),#dbe6ff);
    display:flex;align-items:center;justify-content:center;
    margin-bottom:18px;
    color:var(--blue);
    font-weight:900;
    font-size:17px;
  }
  .svc-card h3{font-size:17.5px;font-weight:800;margin-bottom:9px;color:var(--ink)}
  .svc-card p{font-size:14px;color:var(--ink-3);line-height:1.7}
  .svc-tags{
    display:flex;flex-wrap:wrap;gap:6px;margin-top:16px;
  }
  .svc-tags span{
    font-size:11.5px;padding:3px 9px;border-radius:6px;
    background:var(--blue-soft);color:var(--blue-deep);font-weight:600;
  }
  /* ============ One-stop / timeline ============ */
  .onestop{
    background:
      radial-gradient(circle at 88% 6%,rgba(77,125,255,.16),transparent 40%),
      linear-gradient(180deg,#f7f9ff,#eef3ff);
  }
  .timeline{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:0;
    position:relative;
    margin-top:10px;
  }
  .timeline::before{
    content:"";
    position:absolute;
    top:28px;left:8%;right:8%;height:2px;
    background:linear-gradient(90deg,#bcd0ff,var(--blue),#bcd0ff);
    z-index:0;
  }
  .tl-step{
    position:relative;
    z-index:1;
    padding:0 14px;
    text-align:center;
  }
  .tl-num{
    width:56px;height:56px;
    margin:0 auto 18px;
    border-radius:50%;
    background:#fff;
    border:2px solid var(--blue);
    color:var(--blue);
    display:flex;align-items:center;justify-content:center;
    font-weight:900;font-size:19px;
    box-shadow:0 6px 20px rgba(31,94,255,.18);
    transition:transform .3s ease,background .3s ease,color .3s ease;
  }
  .tl-step:hover .tl-num{transform:scale(1.1);background:var(--blue);color:#fff}
  .tl-step h3{font-size:16px;font-weight:800;margin-bottom:8px;color:var(--ink)}
  .tl-step p{font-size:13.5px;color:var(--ink-3)}
  /* ============ Solutions / industry ============ */
  .solutions-grid{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:22px;
  }
  .sol-card{
    display:flex;
    gap:20px;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius);
    padding:26px;
    transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
  }
  .sol-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c4d6ff}
  .sol-thumb{
    width:76px;height:76px;
    flex-shrink:0;
    border-radius:16px;
    background:linear-gradient(140deg,var(--blue) 0%,#5ea8ff 100%);
    display:flex;align-items:center;justify-content:center;
    color:#fff;font-weight:900;font-size:14px;
    text-align:center;line-height:1.3;
    padding:6px;
  }
  .sol-body h3{font-size:16.5px;font-weight:800;margin-bottom:7px;color:var(--ink)}
  .sol-body p{font-size:13.8px;color:var(--ink-3)}
  /* ============ Network ============ */
  .network{background:#fff}
  .net-grid{
    display:grid;
    grid-template-columns:1.2fr 1fr;
    gap:44px;
    align-items:start;
  }
  .net-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
  .net-tags span{
    font-size:13px;padding:7px 14px;border-radius:99px;
    background:var(--blue-soft);color:var(--blue-deep);font-weight:600;
    transition:.2s ease;
  }
  .net-tags span:hover{background:var(--blue);color:#fff}
  .net-panel{
    background:linear-gradient(160deg,#0d338f,#1250d8);
    border-radius:22px;
    padding:34px 30px;
    color:#fff;
    box-shadow:var(--shadow-md);
  }
  .net-panel h3{font-size:19px;font-weight:800;margin-bottom:14px}
  .net-panel p{font-size:14px;color:rgba(255,255,255,.82);margin-bottom:22px}
  .net-rows{display:grid;gap:12px}
  .net-row{
    display:flex;justify-content:space-between;align-items:center;
    padding:13px 16px;border-radius:10px;
    background:rgba(255,255,255,.10);
    border:1px solid rgba(255,255,255,.16);
    font-size:14px;
  }
  .net-row strong{color:#9fd0ff;font-weight:800}
  /* ============ Cases ============ */
  .case-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:22px;
  }
  .case-card{
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius);
    overflow:hidden;
    transition:transform .3s ease,box-shadow .3s ease;
  }
  .case-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
  .case-img{
    aspect-ratio:16/10;
    background:linear-gradient(140deg,#e6eeff,#cddcff);
    display:flex;align-items:center;justify-content:center;
    color:var(--blue-deep);font-weight:800;font-size:14px;
    padding:14px;text-align:center;
  }
  .case-body{padding:22px}
  .case-body h3{font-size:16px;font-weight:800;margin-bottom:8px;color:var(--ink)}
  .case-body p{font-size:13.5px;color:var(--ink-3);margin-bottom:14px}
  .case-meta{display:flex;flex-wrap:wrap;gap:8px}
  .case-meta span{
    font-size:11.5px;padding:3px 10px;border-radius:6px;
    background:var(--blue-soft);color:var(--blue-deep);font-weight:600;
  }
  /* ============ Compare ============ */
  .compare{
    background:
      radial-gradient(circle at 6% 90%,rgba(77,125,255,.14),transparent 42%),
      linear-gradient(180deg,#eef3ff,#f7f9ff);
  }
  .compare-top{
    display:grid;
    grid-template-columns:1.1fr .9fr;
    gap:36px;
    align-items:center;
    margin-bottom:42px;
  }
  .score-card{
    background:linear-gradient(150deg,#0d338f,#1f5eff);
    border-radius:22px;
    padding:32px 30px;
    color:#fff;
    box-shadow:var(--shadow-md);
    text-align:center;
  }
  .score-big{
    font-size:60px;
    font-weight:900;
    line-height:1;
    letter-spacing:-.03em;
    color:#fff;
  }
  .score-big small{font-size:22px;font-weight:700;color:rgba(255,255,255,.7)}
  .score-stars{color:#ffd166;font-size:22px;letter-spacing:4px;margin:12px 0 8px}
  .score-label{font-size:13.5px;color:rgba(255,255,255,.82)}
  .table-wrap{
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius);
    overflow:hidden;
    box-shadow:var(--shadow-sm);
  }
  .cmp-table{width:100%;border-collapse:collapse;font-size:14px;min-width:640px}
  .cmp-table th,.cmp-table td{padding:16px 20px;text-align:left;border-bottom:1px solid var(--line)}
  .cmp-table thead th{
    background:linear-gradient(135deg,#0d338f,#1f5eff);
    color:#fff;font-weight:800;font-size:14.5px;
  }
  .cmp-table tbody tr:last-child td{border-bottom:none}
  .cmp-table tbody tr:hover{background:#f6f9ff}
  .cmp-table td:first-child{font-weight:700;color:var(--ink)}
  .cmp-table .yes{color:#1f9d55;font-weight:800}
  .cmp-table .strong-col{background:#f2f7ff}
  .scroll-hint{display:none;font-size:12.5px;color:var(--ink-3);margin-top:10px}
  /* ============ Token price ============ */
  .price-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:22px;
  }
  .price-card{
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius);
    padding:30px 26px;
    position:relative;
    transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
  }
  .price-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:#bcd0ff}
  .price-card.featured{
    border:2px solid var(--blue);
    background:linear-gradient(170deg,#f5f9ff,#fff);
    box-shadow:var(--shadow-md);
  }
  .price-badge{
    position:absolute;top:-12px;right:22px;
    font-size:11.5px;font-weight:800;color:#fff;
    background:linear-gradient(135deg,var(--blue),#5ea8ff);
    padding:4px 14px;border-radius:99px;
  }
  .price-card h3{font-size:17px;font-weight:800;margin-bottom:8px;color:var(--ink)}
  .price-card .p-desc{font-size:13px;color:var(--ink-3);margin-bottom:20px}
  .price-num{
    font-size:34px;font-weight:900;color:var(--blue);
    line-height:1.1;letter-spacing:-.02em;
  }
  .price-num small{font-size:14px;font-weight:700;color:var(--ink-3)}
  .price-list{margin:22px 0;display:grid;gap:10px}
  .price-list li{
    font-size:13.5px;color:var(--ink-2);
    display:flex;gap:9px;align-items:flex-start;
  }
  .price-list li::before{
    content:"✓";color:var(--blue);font-weight:900;flex-shrink:0;
  }
  /* ============ Reviews ============ */
  .reviews{background:#fff}
  .review-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:22px;
  }
  .review-card{
    background:linear-gradient(170deg,#f7f9ff,#fff);
    border:1px solid var(--line);
    border-radius:var(--radius);
    padding:26px;
    transition:transform .3s ease,box-shadow .3s ease;
    display:flex;flex-direction:column;
  }
  .review-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md)}
  .review-stars{color:#ffb020;font-size:15px;letter-spacing:2px;margin-bottom:12px}
  .review-text{font-size:14px;color:var(--ink-2);line-height:1.75;flex:1;margin-bottom:18px}
  .review-user{display:flex;align-items:center;gap:12px}
  .review-avatar{
    width:42px;height:42px;border-radius:50%;
    background:linear-gradient(135deg,var(--blue),#5ea8ff);
    color:#fff;display:flex;align-items:center;justify-content:center;
    font-weight:800;font-size:15px;flex-shrink:0;
  }
  .review-name{font-size:14px;font-weight:800;color:var(--ink)}
  .review-role{font-size:12.5px;color:var(--ink-3)}
  /* ============ Demand / form ============ */
  .demand{
    background:
      radial-gradient(circle at 92% 10%,rgba(77,125,255,.18),transparent 40%),
      linear-gradient(180deg,#f7f9ff,#eaf1ff);
  }
  .demand-grid{
    display:grid;
    grid-template-columns:.95fr 1.05fr;
    gap:44px;
    align-items:start;
  }
  .contact-list{display:grid;gap:14px;margin-top:26px}
  .contact-item{
    display:flex;gap:14px;align-items:flex-start;
    background:#fff;border:1px solid var(--line);
    border-radius:var(--radius-sm);padding:16px 18px;
  }
  .contact-item .ci-icon{
    width:38px;height:38px;border-radius:10px;
    background:var(--blue-soft);color:var(--blue);
    display:flex;align-items:center;justify-content:center;
    font-weight:900;font-size:13px;flex-shrink:0;
  }
  .contact-item strong{display:block;font-size:13.5px;color:var(--ink);margin-bottom:2px}
  .contact-item span{font-size:13.5px;color:var(--ink-3);word-break:break-all}
  .form-card{
    background:#fff;
    border:1px solid var(--line);
    border-radius:22px;
    padding:34px 30px;
    box-shadow:var(--shadow-sm);
  }
  .form-card h3{font-size:19px;font-weight:800;margin-bottom:6px;color:var(--ink)}
  .form-card .form-tip{font-size:13.5px;color:var(--ink-3);margin-bottom:24px}
  .form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}
  .form-field{display:flex;flex-direction:column;gap:7px}
  .form-field label{font-size:13.5px;font-weight:700;color:var(--ink-2)}
  .form-field input,.form-field select,.form-field textarea{
    width:100%;
    font-family:var(--font);
    font-size:14.5px;
    color:var(--ink);
    background:#f8faff;
    border:1.5px solid var(--line);
    border-radius:10px;
    padding:12px 14px;
    transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;
    outline:none;
  }
  .form-field textarea{resize:vertical;min-height:110px}
  .form-field input:focus,.form-field select:focus,.form-field textarea:focus{
    border-color:var(--blue);
    background:#fff;
    box-shadow:0 0 0 4px rgba(31,94,255,.12);
  }
  .form-full{grid-column:1 / -1}
  .form-submit{width:100%;margin-top:6px}
  /* ============ FAQ ============ */
  .faq{background:#fff}
  .faq-list{max-width:900px;margin:0 auto;display:grid;gap:12px}
  .faq-item{
    border:1px solid var(--line);
    border-radius:14px;
    background:#fbfcff;
    overflow:hidden;
    transition:border-color .25s ease,box-shadow .25s ease;
  }
  .faq-item.open{border-color:#bcd0ff;box-shadow:var(--shadow-sm);background:#fff}
  .faq-q{
    width:100%;
    display:flex;justify-content:space-between;align-items:center;gap:16px;
    padding:18px 22px;
    font-size:15px;font-weight:700;color:var(--ink);
    background:none;border:none;cursor:pointer;
    text-align:left;font-family:var(--font);
  }
  .faq-q .faq-icon{
    width:26px;height:26px;border-radius:50%;
    background:var(--blue-soft);color:var(--blue);
    display:flex;align-items:center;justify-content:center;
    font-size:16px;font-weight:900;flex-shrink:0;
    transition:transform .3s ease,background .3s ease,color .3s ease;
  }
  .faq-item.open .faq-icon{transform:rotate(45deg);background:var(--blue);color:#fff}
  .faq-a{
    max-height:0;overflow:hidden;
    transition:max-height .38s ease,padding .38s ease;
    padding:0 22px;
  }
  .faq-item.open .faq-a{max-height:340px;padding:0 22px 20px}
  .faq-a p{font-size:14px;color:var(--ink-2);line-height:1.8}
  /* ============ Wiki / news ============ */
  .articles{background:linear-gradient(180deg,#f7f9ff,#eef3ff)}
  .article-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:22px;
  }
  .article-card{
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius);
    padding:26px;
    transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
    display:flex;flex-direction:column;
    min-height:100%;
  }
  .article-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:#c4d6ff}
  .article-tag{
    display:inline-block;
    font-size:11.5px;font-weight:800;
    color:var(--blue-deep);
    background:var(--blue-soft);
    padding:4px 12px;border-radius:99px;
    margin-bottom:14px;align-self:flex-start;
  }
  .article-card h3{font-size:16px;font-weight:800;line-height:1.5;margin-bottom:10px;color:var(--ink)}
  .article-card p{font-size:13.5px;color:var(--ink-3);flex:1;margin-bottom:16px}
  .article-link{
    font-size:13.5px;font-weight:800;color:var(--blue);
    display:inline-flex;align-items:center;gap:6px;
    transition:gap .25s ease;
  }
  .article-link:hover{gap:11px}
  /* ============ Friendly links ============ */
  .friend-links{background:#fff;padding:46px 0}
  .fl-title{
    font-size:14px;font-weight:800;color:var(--ink-2);
    margin-bottom:16px;letter-spacing:.04em;
  }
  .fl-list{display:flex;flex-wrap:wrap;gap:10px}
  .fl-list a{
    font-size:13.5px;color:var(--ink-3);
    padding:7px 16px;border-radius:8px;
    background:#f3f6ff;border:1px solid var(--line);
    transition:.22s ease;
  }
  .fl-list a:hover{color:#fff;background:var(--blue);border-color:var(--blue);transform:translateY(-2px)}
  /* ============ Footer ============ */
  .site-footer{
    background:#071a4a;
    color:#c3d0f0;
    padding:64px 0 0;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.5fr 1fr 1fr 1.2fr;
    gap:40px;
    padding-bottom:44px;
  }
  .footer-brand img{width:132px;margin-bottom:18px}
  .footer-brand p{font-size:13.5px;line-height:1.9;color:#94a7d4;margin-bottom:18px}
  .footer-col h4{
    font-size:14.5px;font-weight:800;color:#fff;
    margin-bottom:16px;letter-spacing:.04em;
  }
  .footer-col ul{display:grid;gap:10px}
  .footer-col a{font-size:13.5px;color:#94a7d4;transition:color .22s ease}
  .footer-col a:hover{color:#8fc0ff}
  .footer-contact p{font-size:13.5px;color:#94a7d4;margin-bottom:10px;word-break:break-all}
  .footer-contact strong{color:#c3d0f0;font-weight:700}
  .footer-bottom{
    border-top:1px solid rgba(255,255,255,.12);
    padding:22px 0;
    display:flex;justify-content:space-between;align-items:center;
    flex-wrap:wrap;gap:12px;
    font-size:12.5px;color:#7c8fb8;
  }
  /* ============ Float & back to top ============ */
  .float-kf{
    position:fixed;right:22px;bottom:96px;z-index:900;
    width:60px;height:60px;border-radius:50%;
    background:linear-gradient(135deg,var(--blue),#5ea8ff);
    color:#fff;
    display:flex;align-items:center;justify-content:center;
    font-size:12px;font-weight:800;text-align:center;line-height:1.2;
    box-shadow:0 10px 28px rgba(31,94,255,.42);
    cursor:pointer;border:none;font-family:var(--font);
    transition:transform .25s ease,box-shadow .25s ease;
  }
  .float-kf:hover{transform:translateY(-4px) scale(1.05);box-shadow:0 16px 36px rgba(31,94,255,.5)}
  .kf-pop{
    position:fixed;right:94px;bottom:96px;z-index:901;
    width:230px;background:#fff;border:1px solid var(--line);
    border-radius:16px;padding:18px;box-shadow:var(--shadow-lg);
    opacity:0;pointer-events:none;transform:translateY(10px);
    transition:.3s ease;
  }
  .kf-pop.show{opacity:1;pointer-events:auto;transform:translateY(0)}
  .kf-pop h4{font-size:14px;color:var(--ink);margin-bottom:10px;font-weight:800}
  .kf-pop img{width:100%;border-radius:10px;border:1px solid var(--line)}
  .kf-pop p{font-size:12px;color:var(--ink-3);margin-top:8px;text-align:center}
  .back-top{
    position:fixed;right:22px;bottom:24px;z-index:900;
    width:48px;height:48px;border-radius:50%;
    background:#fff;border:1.5px solid var(--line);
    color:var(--blue);font-size:18px;font-weight:900;
    display:flex;align-items:center;justify-content:center;
    cursor:pointer;box-shadow:var(--shadow-sm);
    opacity:0;pointer-events:none;
    transition:.3s ease;
  }
  .back-top.show{opacity:1;pointer-events:auto}
  .back-top:hover{background:var(--blue);color:#fff;border-color:var(--blue);transform:translateY(-3px)}
  /* ============ Reveal animation ============ */
  .reveal{
    opacity:0;
    transform:translateY(30px);
    transition:opacity .7s cubic-bezier(.22,.68,.36,1),transform .7s cubic-bezier(.22,.68,.36,1);
    will-change:opacity,transform;
  }
  .reveal.in{opacity:1;transform:translateY(0)}
  /* ============ Responsive ============ */
  @media (max-width:1080px){
    .nav-links{display:none}
    .nav-toggle{display:flex}
    .nav-actions .btn-ghost{display:none}
    .hero-inner{grid-template-columns:1fr;gap:44px}
    .hero-panel{max-width:560px}
    .about-grid{grid-template-columns:1fr;gap:36px}
    .network .net-grid{grid-template-columns:1fr;gap:32px}
    .demand-grid{grid-template-columns:1fr;gap:36px}
    .compare-top{grid-template-columns:1fr;gap:26px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
    .service-grid{grid-template-columns:repeat(2,1fr)}
    .case-grid{grid-template-columns:repeat(2,1fr)}
    .price-grid{grid-template-columns:1fr;max-width:520px;margin:0 auto}
    .review-grid{grid-template-columns:repeat(2,1fr)}
    .article-grid{grid-template-columns:repeat(2,1fr)}
    .timeline{grid-template-columns:repeat(2,1fr);gap:34px 0}
    .timeline::before{display:none}
    .stats-grid{grid-template-columns:repeat(2,1fr)}
    .stat-item:nth-child(2){border-right:none}
    .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--line)}
  }
  @media (max-width:720px){
    .container{padding:0 18px}
    .sec-pad{padding:64px 0}
    .hero{padding:64px 0 84px}
    .hero h1{font-size:clamp(26px,7vw,36px)}
    .hero-lead{font-size:15px}
    .hero-cta .btn{flex:1 1 auto;justify-content:center}
    .hero-mini{grid-template-columns:1fr 1fr}
    .stats-band{margin-top:-40px}
    .about-points{grid-template-columns:1fr}
    .service-grid{grid-template-columns:1fr}
    .solutions-grid{grid-template-columns:1fr}
    .case-grid{grid-template-columns:1fr}
    .review-grid{grid-template-columns:1fr}
    .article-grid{grid-template-columns:1fr}
    .timeline{grid-template-columns:1fr;gap:28px}
    .sol-card{flex-direction:column;gap:14px}
    .form-row{grid-template-columns:1fr}
    .form-card{padding:26px 22px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
    .footer-brand{grid-column:1 / -1}
    .scroll-hint{display:block}
    .table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
    .footer-bottom{flex-direction:column;text-align:center;justify-content:center}
    .kf-pop{right:18px;bottom:auto;top:50%;transform:translateY(-50%) translateX(10px);width:210px}
    .kf-pop.show{transform:translateY(-50%) translateX(0)}
    .float-kf{right:18px;bottom:86px;width:54px;height:54px;font-size:11px}
    .back-top{right:18px;bottom:20px;width:44px;height:44px}
  }
  @media (max-width:420px){
    .hero-mini{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr}
  }
  @media (prefers-reduced-motion:reduce){
    *{animation:none!important;transition:none!important}
    .reveal{opacity:1;transform:none}
  }