*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth;font-size:16px}
    body{
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
      background:radial-gradient(ellipse at 50% 0%,#eef6ff 0%,#ffffff 60%,#f0f4f8 100%);
      color:#1e293b;line-height:1.7;overflow-x:hidden;
      -webkit-font-smoothing:antialiased;
    }
    a{text-decoration:none;color:inherit}
    img{max-width:100%;display:block}

    /* ===== Grid BG ===== */
    .grid-bg{
      position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.05;
      background-image:
        linear-gradient(rgba(0,198,255,.4) 1px,transparent 1px),
        linear-gradient(90deg,rgba(0,198,255,.4) 1px,transparent 1px);
      background-size:50px 50px;
    }

    /* ===== Scanline overlay ===== */
    .scanlines{
      position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.015;
      background:repeating-linear-gradient(0deg,transparent,transparent 2px,rgba(0,198,255,.3) 2px,rgba(0,198,255,.3) 4px);
    }

    /* ===== Hex overlay ===== */
    .hex-bg{
      position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.03;
      background-image:url("data:image/svg+xml,%3Csvg width='60' height='52' viewBox='0 0 60 52' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 0l30 17.3v34.6L30 69.2 0 51.9V17.3z' fill='none' stroke='%2300c6ff' stroke-width='0.5'/%3E%3C/svg%3E");
      background-size:60px 52px;
    }
    .noise-bg{
      position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.025;
      background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    }

    /* ===== Utility ===== */
    .container{max-width:1140px;margin:0 auto;padding:0 24px;position:relative;z-index:1}
    .section{padding:100px 0;position:relative}
    .section-label{
      display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.15em;
      text-transform:uppercase;color:#00c6ff;margin-bottom:16px;
      background:rgba(0,198,255,.08);padding:6px 16px;border-radius:50px;
      border:1px solid rgba(0,198,255,.15);
    }
    .section-title{
      font-size:clamp(1.8rem,4vw,2.8rem);font-weight:800;color:#0f172a;
      margin-bottom:20px;letter-spacing:-.02em;
      text-shadow:0 0 60px rgba(0,198,255,.15);
    }
    .section-desc{font-size:1.1rem;color:#475569;max-width:640px;line-height:1.8}

    /* ===== Header ===== */
    .header{
      position:fixed;top:0;left:0;right:0;z-index:100;
      background:rgba(255,255,255,.85);backdrop-filter:blur(20px);
      border-bottom:1px solid rgba(0,0,0,.06);
    }
    .nav{
      display:flex;align-items:center;justify-content:space-between;
      height:64px;max-width:1140px;margin:0 auto;padding:0 24px;
    }
    .nav-logo{display:flex;align-items:center;gap:10px;font-size:1.25rem;font-weight:800;color:#0f172a}
    .nav-logo svg{width:32px;height:32px}
    .nav-links{display:flex;gap:32px;align-items:center}
    .nav-links a{font-size:.9rem;color:#475569;font-weight:500;position:relative;padding-bottom:4px;transition:color .25s}
    .nav-links a:not(.nav-cta)::after{
      content:'';position:absolute;left:0;bottom:0;height:2px;width:100%;
      background:linear-gradient(90deg,#0072ff,#00c6ff,#00e5ff,#0072ff);
      background-size:300% 100%;
      border-radius:2px;
      transform:scaleX(0);transform-origin:left;
      transition:transform .3s ease;
      box-shadow:0 0 8px rgba(0,198,255,.5);
    }
    .nav-links a:not(.nav-cta):hover{color:#00c6ff}
    .nav-links a:not(.nav-cta):hover::after{
      transform:scaleX(1);
      animation:navFlow 1.8s linear infinite;
    }
    @keyframes navFlow{0%{background-position:0% 0}100%{background-position:300% 0}}
    .nav-cta{
      background:linear-gradient(135deg,#00c6ff,#0072ff);color:#fff!important;
      padding:8px 22px;border-radius:8px;font-weight:700!important;
      transition:transform .2s,box-shadow .2s!important;
    }
    .nav-cta:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(0,198,255,.3)}

    /* ===== Hero ===== */
    .hero{position:relative;z-index:1;min-height:100vh;display:flex;align-items:center;padding-top:80px}
    .hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
    .hero-badge{
      display:inline-flex;align-items:center;gap:8px;
      background:rgba(0,198,255,.08);border:1px solid rgba(0,198,255,.2);
      border-radius:50px;padding:6px 18px;font-size:.85rem;color:#00c6ff;font-weight:600;margin-bottom:28px;
    }
    .hero-badge .dot{width:8px;height:8px;background:#00c6ff;border-radius:50%;animation:pulse 2s infinite}
    @keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
    .hero h1{
      font-size:clamp(2.9rem,6.5vw,4.5rem);font-weight:900;color:#0f172a;
      line-height:1.15;margin-bottom:24px;letter-spacing:-.03em;
    }
    .hero h1 .highlight{
      background:linear-gradient(135deg,#00c6ff,#0072ff);
      -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
    }
    .hero-types{
      display:block;font-size:clamp(1.4rem,3.5vw,2.4rem);font-weight:800;
      color:#0f172a;letter-spacing:.06em;margin-bottom:8px;line-height:1.35;
    }
    .hero p{font-size:1.15rem;color:#475569;margin-bottom:24px;max-width:480px;line-height:1.8}
    .hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}
    .hero-tags span{
      background:rgba(0,198,255,.06);border:1px solid rgba(0,198,255,.15);
      border-radius:8px;padding:6px 14px;font-size:.82rem;color:#475569;
      font-weight:500;white-space:nowrap;
    }
    .hero-tags span:hover{border-color:#00c6ff;color:#00c6ff;background:rgba(0,198,255,.1)}
    .hero-buttons{display:flex;gap:16px;flex-wrap:wrap}
    .btn{
      display:inline-flex;align-items:center;gap:8px;padding:14px 32px;
      font-size:1rem;font-weight:700;border-radius:10px;border:none;cursor:pointer;
      transition:all .25s;line-height:1;
    }
    .btn-primary{
      background:linear-gradient(135deg,#00c6ff,#0072ff);color:#fff;
      box-shadow:0 4px 20px rgba(0,198,255,.25);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 30px rgba(0,198,255,.4)}
    .btn-outline{
      background:transparent;color:#1e293b;border:1.5px solid rgba(0,0,0,.2);
    }
    .btn-outline:hover{border-color:#00c6ff;color:#00c6ff;background:rgba(0,198,255,.05)}
    .hero-visual{display:flex;align-items:center;justify-content:center}

    /* ===== Hero light streams (video-like bg) ===== */
    .hero-streams{position:absolute;inset:0;z-index:0;overflow:hidden;pointer-events:none}
    .hero-streams .stream{
      position:absolute;width:50%;height:200%;
      background:linear-gradient(90deg,transparent,rgba(0,198,255,.07),rgba(0,114,255,.04),transparent);
      top:-50%;left:-60%;
      transform:rotate(25deg);
      animation:streamMove 9s linear infinite;
    }
    .hero-streams .stream:nth-child(2){animation-delay:4.5s;animation-duration:12s;width:35%}
    .hero-streams .stream:nth-child(3){animation-delay:2s;animation-duration:7s;width:60%}
    @keyframes streamMove{0%{left:-60%}100%{left:130%}}

    /* ===== Hero SVG Illustration ===== */
    .hero-illustration{position:relative;width:100%;max-width:480px}
    .hero-illustration svg{width:100%;height:auto}

    /* ===== Glow Orbs ===== */
    .glow-orb{position:absolute;border-radius:50%;filter:blur(120px);pointer-events:none;z-index:0}
    .glow-orb-1{width:600px;height:600px;background:rgba(0,198,255,.08);top:-150px;right:-200px}
    .glow-orb-2{width:500px;height:500px;background:rgba(0,114,255,.06);bottom:-150px;left:-150px}

    /* ===== Floating Data Particles ===== */
    .particles{position:absolute;inset:0;pointer-events:none;overflow:hidden}
    .particle{
      position:absolute;width:4px;height:4px;background:#00c6ff;border-radius:50%;
      animation:floatUp 6s infinite;
    }
    .particle:nth-child(1){left:10%;animation-delay:0s;opacity:.6}
    .particle:nth-child(2){left:25%;animation-delay:1.5s;opacity:.4;width:3px;height:3px}
    .particle:nth-child(3){left:40%;animation-delay:3s;opacity:.5}
    .particle:nth-child(4){left:55%;animation-delay:2s;opacity:.3;width:5px;height:5px}
    .particle:nth-child(5){left:70%;animation-delay:4s;opacity:.7}
    .particle:nth-child(6){left:85%;animation-delay:1s;opacity:.4;width:3px;height:3px}
    .particle:nth-child(7){left:15%;animation-delay:5s;opacity:.5}
    .particle:nth-child(8){left:60%;animation-delay:3.5s;opacity:.3}
    @keyframes floatUp{
      0%{transform:translateY(100vh) scale(0);opacity:0}
      20%{opacity:1}
      80%{opacity:1}
      100%{transform:translateY(-20vh) scale(1.5);opacity:0}
    }

    /* ===== Download Animation ===== */
    .dl-bar-wrap{
      position:relative;z-index:2;width:100%;
    }
    .dl-card{
      background:linear-gradient(135deg,rgba(255,255,255,.9),rgba(238,244,250,.8));
      border:1px solid rgba(0,198,255,.15);border-radius:16px;padding:28px 36px;
      backdrop-filter:blur(16px);position:relative;overflow:hidden;
    }
    .dl-card::before{
      content:'';position:absolute;top:0;left:0;right:0;height:1px;
      background:linear-gradient(90deg,transparent,rgba(0,198,255,.5),transparent);
    }
    .dl-card::after{
      content:'';position:absolute;inset:0;
      background:radial-gradient(ellipse at 50% 0%,rgba(0,198,255,.06),transparent 60%);
      pointer-events:none;
    }
    .dl-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;position:relative;z-index:1}
    .dl-file{display:flex;align-items:center;gap:10px}
    .dl-file svg{width:28px;height:28px}
    .dl-file-name{font-size:.95rem;color:#1e293b;font-weight:600}
    .dl-file-size{font-size:.78rem;color:#64748b}
    .dl-speed{text-align:right}
    .dl-speed-val{font-size:1.5rem;font-weight:900;color:#00c6ff;text-shadow:0 0 20px rgba(0,198,255,.4);font-variant-numeric:tabular-nums}
    .dl-speed-unit{font-size:.75rem;color:#00c6ff;opacity:.7}
    .dl-percent{font-size:.82rem;color:#475569;margin-top:2px}
    .dl-bar-track{
      height:6px;background:rgba(0,198,255,.08);border-radius:3px;
      overflow:hidden;position:relative;z-index:1;margin-bottom:10px;
    }
    .dl-bar-fill{
      height:100%;border-radius:3px;
      background:linear-gradient(90deg,#0072ff,#00c6ff,#00e5ff);
      box-shadow:0 0 20px rgba(0,198,255,.5),0 0 60px rgba(0,198,255,.2);
      position:relative;width:0;animation:dlProgress 10s ease-in-out infinite;
    }
    .dl-bar-fill::after{
      content:'';position:absolute;right:0;top:-2px;
      width:10px;height:10px;border-radius:50%;
      background:#fff;box-shadow:0 0 12px #00c6ff,0 0 30px #00c6ff;
    }
    .dl-bar-glow{
      position:absolute;top:0;left:0;height:100%;width:60px;
      background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);
      animation:dlSweep 1.5s linear infinite;
      border-radius:3px;
    }
    @keyframes dlProgress{
      0%{width:0%} 20%{width:15%} 40%{width:42%} 60%{width:68%} 80%{width:89%} 100%{width:100%}
    }
    @keyframes dlSweep{
      0%{left:-60px} 100%{left:100%}
    }
    .dl-footer{display:flex;justify-content:space-between;align-items:center;position:relative;z-index:1}
    .dl-status{font-size:.8rem;color:#64748b;display:flex;align-items:center;gap:6px}
    .dl-status .dot{width:6px;height:6px;background:#00c6ff;border-radius:50%;animation:pulse 1.5s infinite}
    .dl-peers{font-size:.78rem;color:#64748b}
    @media(max-width:768px){
      .dl-bar-wrap{max-width:100%}
      .dl-card{padding:20px}
      .dl-speed-val{font-size:1.2rem}
    }
    @media(max-width:480px){
      .dl-card{padding:16px}
      .dl-header{flex-direction:column;align-items:flex-start;gap:8px}
      .dl-speed{text-align:left}
      .dl-speed-val{font-size:1.1rem}
    }

    /* ===== Services ===== */
    .services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:48px}
    .service-card{
      background:linear-gradient(135deg,rgba(255,255,255,.8),rgba(240,247,255,.6));
      border:1px solid rgba(0,198,255,.1);
      border-radius:16px;padding:36px 28px;transition:all .35s;position:relative;overflow:hidden;
      backdrop-filter:blur(10px);
    }
    .service-card::before{
      content:'';position:absolute;top:0;left:0;right:0;height:1px;
      background:linear-gradient(90deg,transparent,rgba(0,198,255,.4),transparent);
      opacity:0;transition:opacity .3s;
    }
    .service-card:hover{
      border-color:rgba(0,198,255,.4);transform:translateY(-6px);
      box-shadow:0 0 40px rgba(0,198,255,.1),0 20px 40px rgba(0,0,0,.12);
    }
    .service-card:hover::before{opacity:1}
    .service-card .s-icon{width:56px;height:56px;margin-bottom:20px}
    .service-card .s-icon svg{width:100%;height:100%}
    .service-card h3{font-size:1.15rem;color:#0f172a;margin-bottom:6px;font-weight:700}
    .service-card p{font-size:.92rem;color:#475569;line-height:1.7}
    .service-sub{font-size:.9rem;color:#00c6ff;margin-bottom:14px;font-weight:600}
    .service-items{display:flex;flex-wrap:wrap;gap:6px}
    .service-items span{
      font-size:.78rem;color:#475569;background:rgba(0,198,255,.06);
      border:1px solid rgba(0,198,255,.12);border-radius:6px;padding:4px 10px;
    }

    /* ===== Process ===== */
    .process-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:48px;position:relative}
    .process-line{
      position:absolute;top:28px;left:12.5%;right:12.5%;height:2px;
      background:linear-gradient(90deg,rgba(0,198,255,.4),rgba(0,198,255,.1),rgba(0,198,255,.4));
      z-index:0;
    }
    .process-line::after{
      content:'';position:absolute;top:-3px;right:-8px;
      width:0;height:0;
      border-left:10px solid #00c6ff;border-top:5px solid transparent;border-bottom:5px solid transparent;
    }
    .process-step{text-align:center;position:relative;z-index:1}
    .process-step .step-img{width:80px;height:80px;margin:0 auto 20px}
    .process-step .step-img svg{width:100%;height:100%}
    .process-step h4{font-size:1.05rem;color:#0f172a;margin-bottom:8px;font-weight:700}
    .process-step p{font-size:.88rem;color:#475569;line-height:1.6}

    /* ===== Why Us ===== */
    .why-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:48px}
    .why-item{
      display:flex;gap:16px;padding:24px;
      background:linear-gradient(135deg,rgba(255,255,255,.5),rgba(240,247,255,.3));
      border-radius:12px;border:1px solid rgba(0,198,255,.06);
      transition:all .35s;
    }
    .why-item:hover{
      border-color:rgba(0,198,255,.25);background:linear-gradient(135deg,rgba(255,255,255,.8),rgba(240,247,255,.6));
      transform:translateY(-3px);box-shadow:0 0 25px rgba(0,198,255,.06);
    }
    .why-icon{width:44px;height:44px;flex-shrink:0}
    .why-icon svg{width:100%;height:100%}
    .why-item h4{font-size:1rem;color:#0f172a;margin-bottom:4px;font-weight:700}
    .why-item p{font-size:.88rem;color:#475569;line-height:1.6}

    /* ===== CTA Banner ===== */
    .cta-banner{
      background:linear-gradient(135deg,rgba(0,198,255,.12),rgba(0,114,255,.04),rgba(255,255,255,.5));
      border:1px solid rgba(0,198,255,.2);border-radius:20px;padding:60px;
      text-align:center;position:relative;overflow:hidden;backdrop-filter:blur(10px);
    }
    .cta-banner::before{
      content:'';position:absolute;top:-80%;left:-20%;
      width:140%;height:260%;
      background:radial-gradient(ellipse at center,rgba(0,198,255,.06),transparent 70%);
    }
    .cta-banner>*{position:relative;z-index:1}
    .cta-banner h2{font-size:2rem;color:#0f172a;margin-bottom:16px;font-weight:800}
    .cta-banner p{color:#475569;margin-bottom:32px;font-size:1.05rem}
    .cta-illustration{margin:0 auto 24px;max-width:240px}
    .cta-illustration svg{width:100%}

    /* ===== Stats Bar ===== */
    .stats-row{display:flex;gap:24px;margin-top:48px}
    .stat-card{
      flex:1;background:linear-gradient(135deg,rgba(255,255,255,.7),rgba(240,247,255,.5));
      border:1px solid rgba(0,198,255,.1);backdrop-filter:blur(10px);
      border-radius:16px;padding:32px 24px;text-align:center;
      transition:all .35s;
    }
    .stat-card:hover{
      border-color:rgba(0,198,255,.35);transform:translateY(-6px);
      box-shadow:0 0 35px rgba(0,198,255,.08),0 16px 32px rgba(0,0,0,.12);
    }
    .stat-card .stat-icon{width:40px;height:40px;margin:0 auto 12px}
    .stat-card .stat-icon svg{width:100%;height:100%}
    .stat-card .stat-num{font-size:2.6rem;font-weight:900;color:#00c6ff;margin-bottom:6px;line-height:1.1}
    .stat-card .stat-label{font-size:.85rem;color:#64748b}

    /* ===== Testimonials ===== */
    .testimonials-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:48px}
    .testimonial-card{
      background:linear-gradient(135deg,rgba(255,255,255,.85),rgba(240,247,255,.65));
      border:1px solid rgba(0,198,255,.1);border-radius:16px;padding:32px 28px;
      transition:all .35s;position:relative;
    }
    .testimonial-card:hover{border-color:rgba(0,198,255,.3);transform:translateY(-4px);box-shadow:0 0 30px rgba(0,198,255,.08)}
    .testimonial-stars{color:#fbbf24;font-size:1rem;letter-spacing:2px;margin-bottom:14px}
    .testimonial-text{font-size:.95rem;color:#475569;line-height:1.8;margin-bottom:20px}
    .testimonial-author{display:flex;align-items:center;gap:12px}
    .testimonial-avatar{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,#00c6ff,#0072ff);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.1rem;flex-shrink:0}
    .testimonial-name{font-size:.92rem;color:#0f172a;font-weight:700}
    .testimonial-type{font-size:.78rem;color:#64748b}

    /* ===== FAQ ===== */
    .faq-list{max-width:820px;margin:48px auto 0}
    .faq-item{
      background:linear-gradient(135deg,rgba(255,255,255,.85),rgba(240,247,255,.65));
      border:1px solid rgba(0,198,255,.1);border-radius:12px;margin-bottom:12px;
      overflow:hidden;transition:all .3s;
    }
    .faq-item:hover{border-color:rgba(0,198,255,.25)}
    .faq-item summary{
      padding:20px 24px;cursor:pointer;font-weight:700;color:#0f172a;
      list-style:none;display:flex;justify-content:space-between;align-items:center;font-size:1rem;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary::after{content:'+';font-size:1.6rem;color:#00c6ff;font-weight:400;transition:transform .3s;line-height:1}
    .faq-item[open] summary::after{content:'−'}
    .faq-item[open]{border-color:rgba(0,198,255,.3);box-shadow:0 0 20px rgba(0,198,255,.06)}
    .faq-item p{padding:0 24px 20px;color:#475569;font-size:.92rem;line-height:1.8}

    /* ===== Contact ===== */
    .contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:48px}
    .contact-card{
      background:linear-gradient(135deg,rgba(255,255,255,.6),rgba(240,247,255,.4));
      border:1px solid rgba(0,198,255,.08);backdrop-filter:blur(10px);
      border-radius:16px;padding:32px;display:flex;gap:20px;align-items:flex-start;
      transition:all .35s;
    }
    .contact-card:hover{
      border-color:rgba(0,198,255,.3);background:linear-gradient(135deg,rgba(255,255,255,.9),rgba(240,247,255,.7));
      box-shadow:0 0 30px rgba(0,198,255,.06);
    }
    .contact-card .c-icon{width:56px;height:56px;flex-shrink:0}
    .contact-card .c-icon svg{width:100%;height:100%}
    .contact-card h4{font-size:.95rem;color:#0f172a;margin-bottom:4px;font-weight:700}
    .contact-card p,.contact-card a{font-size:.9rem;color:#475569}
    .contact-card a:hover{color:#00c6ff}

    /* ===== Footer ===== */
    .footer{border-top:1px solid rgba(0,0,0,.06);padding:32px 0}
    .footer-inner{
      display:flex;justify-content:space-between;align-items:center;
      max-width:1140px;margin:0 auto;padding:0 24px;
    }
    .footer p{font-size:.85rem;color:#64748b}
    .footer-links{display:flex;gap:24px}
    .footer-links a{font-size:.85rem;color:#64748b;transition:color .2s}
    .footer-links a:hover{color:#00c6ff}

    /* ===== WeChat Banner ===== */
    .wechat-banner{
      margin-top:24px;display:flex;align-items:center;gap:24px;
      background:linear-gradient(135deg,rgba(7,193,96,.1),rgba(7,193,96,.04));
      border:1.5px solid rgba(7,193,96,.25);border-radius:20px;padding:32px;
      position:relative;overflow:hidden;
    }
    .wechat-banner::after{
      content:'';position:absolute;top:-30%;right:-10%;
      width:200px;height:200px;
      background:radial-gradient(circle,rgba(7,193,96,.1),transparent 70%);
      pointer-events:none;
    }
    .wechat-avatar{flex-shrink:0;position:relative;z-index:1}
    .wechat-avatar svg{width:72px;height:72px;filter:drop-shadow(0 4px 12px rgba(7,193,96,.3))}
    .wechat-info{position:relative;z-index:1}
    .wechat-name{font-size:.9rem;color:#475569;margin-bottom:8px}
    .wechat-name span{color:#0f172a;font-weight:700;font-size:1.05rem}
    .wechat-id{
      display:inline-flex;align-items:center;gap:10px;
      font-size:1.8rem;font-weight:900;color:#07C160;
      letter-spacing:.08em;margin-bottom:10px;
      padding:8px 20px;background:rgba(7,193,96,.08);
      border-radius:10px;border:1px dashed rgba(7,193,96,.3);
      transition:all .2s;
    }
    .wechat-id:hover{
      background:rgba(7,193,96,.15);border-color:#07C160;
      transform:scale(1.03);
    }
    .wechat-tip{font-size:.85rem;color:#64748b}

    /* ===== Nav toggle ===== */
    .nav-toggle{display:none;background:none;border:none;color:#0f172a;font-size:1.5rem;cursor:pointer;padding:8px}
    /* Mobile nav overlay */
    .nav-overlay{display:none}
    @media(max-width:768px){
      .nav-links{position:fixed;top:64px;left:0;right:0;bottom:0;
        background:rgba(255,255,255,.97);backdrop-filter:blur(20px);
        flex-direction:column;justify-content:flex-start;padding:32px 24px;
        gap:0;z-index:99;overflow-y:auto;
        transform:translateX(100%);transition:transform .3s ease}
      .nav-links.open{transform:translateX(0)}
      .nav-links a{font-size:1.1rem;padding:18px 0;color:#1e293b;
        border-bottom:1px solid rgba(0,0,0,.06);width:100%}
      .nav-links .nav-cta{margin-top:20px;text-align:center;width:100%;
        padding:16px;font-size:1.1rem;border-radius:12px}
    }

    /* ===== Responsive ===== */
    @media(max-width:1024px){
      .hero-grid{grid-template-columns:1fr;gap:32px}
      .hero-visual{order:-1}
      .hero-illustration{max-width:300px;margin:0 auto}
      .services-grid{grid-template-columns:repeat(3,1fr);gap:16px}
      .process-steps{grid-template-columns:repeat(2,1fr);gap:28px}
      .process-line{display:none}
      .stats-row{flex-wrap:wrap;gap:16px}
      .stat-card{flex:1 1 calc(50% - 8px)}
    }
    @media(max-width:768px){
      .section{padding:60px 0}
      .section-title{font-size:1.6rem}
      .section-desc{font-size:.95rem}
      .hero{min-height:auto;padding:100px 0 48px}
      .hero h1{font-size:2.5rem}
      .hero p{font-size:1rem}
      .hero-badge{font-size:.75rem;padding:5px 14px}
      .hero-illustration{max-width:260px}
      .hero-buttons{flex-direction:column}
      .hero-buttons .btn{width:100%;justify-content:center;text-align:center;padding:16px 24px;font-size:1.05rem}
      .services-grid{grid-template-columns:1fr;gap:12px}
      .service-card{padding:28px 22px}
      .service-card .s-icon{width:44px;height:44px}
      .process-steps{grid-template-columns:1fr 1fr;gap:24px}
      .process-step .step-img{width:60px;height:60px}
      .why-grid{grid-template-columns:1fr;gap:12px}
      .testimonials-grid{grid-template-columns:1fr;gap:12px}
      .why-item{padding:20px}
      .why-icon{width:38px;height:38px}
      .contact-grid{grid-template-columns:1fr;gap:12px}
      .contact-card{padding:24px}
      .wechat-id{font-size:1.5rem}
      .cta-banner{padding:36px 20px}
      .cta-banner h2{font-size:1.5rem}
      .cta-illustration{max-width:180px}
      .nav-links{display:flex}
      .nav-toggle{display:block}
      .footer-inner{flex-direction:column;gap:12px;text-align:center}
      .stats-row{gap:12px}
      .stat-card{padding:24px 16px}
      .stat-card .stat-num{font-size:1.6rem}
      .stat-card .stat-icon{width:36px;height:36px}
    }
    @media(max-width:480px){
      html{font-size:15px}
      .container{padding:0 16px}
      .section{padding:48px 0}
      .section-title{font-size:1.45rem}
      .hero{padding:88px 0 40px}
      .hero h1{font-size:2.2rem;margin-bottom:16px}
      .hero p{font-size:.92rem;margin-bottom:24px}
      .hero-illustration{max-width:220px}
      .hero-buttons{gap:10px}
      .hero-buttons .btn{padding:14px 20px;font-size:1rem;border-radius:8px}
      .services-grid{gap:10px}
      .service-card{padding:24px 18px;border-radius:12px}
      .service-card h3{font-size:1.05rem}
      .service-card p{font-size:.85rem}
      .process-steps{grid-template-columns:1fr 1fr;gap:20px}
      .process-step .step-img{width:52px;height:52px}
      .process-step h4{font-size:.95rem}
      .process-step p{font-size:.8rem}
      .stats-row{gap:10px}
      .stat-card{flex:1 1 calc(50% - 5px);padding:20px 12px;border-radius:12px}
      .stat-card .stat-num{font-size:1.4rem}
      .stat-card .stat-label{font-size:.75rem}
      .why-item{padding:16px;gap:12px}
      .why-item h4{font-size:.92rem}
      .why-item p{font-size:.82rem}
      .cta-banner{padding:32px 16px;border-radius:16px}
      .cta-banner h2{font-size:1.3rem}
      .cta-banner p{font-size:.9rem;margin-bottom:24px}
      .cta-illustration{max-width:150px;margin-bottom:16px}
      .contact-card{padding:20px;gap:14px;border-radius:12px}
      .wechat-banner{flex-direction:column;text-align:center;padding:24px 20px;gap:16px}
      .wechat-avatar img{width:60px;height:60px}
      .wechat-id{font-size:1.4rem;padding:6px 16px}
      .btn{font-size:.95rem;padding:12px 24px}
      .grid-bg{background-size:36px 36px}
      .particles{display:none}
      .footer{padding:24px 0}
      .footer p,.footer-links a{font-size:.78rem}
    }