:root{--ink:#18231f;--muted:#5d6963;--paper:#f7f8f4;--white:#fff;--line:#dfe6df;--green:#b8f36b;--lime:#d8ff93;--teal:#0f6e5c;--coral:#ff735d;--blue:#315d75;--max:1180px}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;line-height:1.65}
    img{max-width:100%;height:auto}
    a{color:inherit}
    button,input,select,textarea{font:inherit}
    .container{width:min(var(--max),calc(100% - 40px));margin-inline:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(247,248,244,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(24,35,31,.1)}
    .nav-row{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:inline-flex;align-items:center;gap:11px;text-decoration:none;flex:none}
    .brand img{display:block;width:42px;max-height:42px;object-fit:contain}
    .brand-name{font-size:17px;font-weight:800;letter-spacing:0}
    .nav-links{display:flex;align-items:center;justify-content:flex-end;gap:0;flex-wrap:wrap}
    .nav-links a{padding:10px 9px;text-decoration:none;font-size:13px;color:#36433c;transition:color .2s}
    .nav-links a:hover{color:var(--teal)}
    .nav-cta,.button{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:0;background:var(--ink);color:#fff;text-decoration:none;padding:12px 18px;font-weight:750;border-radius:4px;transition:transform .2s,background .2s,box-shadow .2s}
    .nav-cta{white-space:nowrap;padding:10px 15px;font-size:13px}
    .button:hover,.nav-cta:hover{transform:translateY(-2px);background:var(--teal);box-shadow:0 8px 22px rgba(15,110,92,.17)}
    .button-light{background:var(--green);color:var(--ink)}
    .button-light:hover{background:#cbff83;color:var(--ink)}
    .menu-toggle{display:none;border:1px solid var(--line);background:#fff;color:var(--ink);width:42px;height:42px;border-radius:4px;cursor:pointer}
    .hero{overflow:hidden;position:relative;background:#dfff9b}
    .hero-inner{padding:76px 0 58px;position:relative;z-index:1}
    .hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(260px,.85fr);gap:52px;align-items:center}
    .eyebrow{display:flex;align-items:center;gap:9px;font-size:12px;font-weight:800;letter-spacing:0;color:#31584b;text-transform:uppercase}
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--teal)}
    h1{font-size:clamp(42px,6vw,76px);line-height:1.08;letter-spacing:0;margin:18px 0 20px;max-width:760px}
    .hero-copy{font-size:17px;max-width:650px;color:#34453c;margin:0}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
    .button-outline{background:transparent;color:var(--ink);border:1px solid rgba(24,35,31,.42)}
    .button-outline:hover{background:var(--ink);color:#fff}
    .hero-note{font-size:12px;color:#415449;margin-top:18px}
    .hero-art{min-height:300px;display:flex;align-items:center;justify-content:center;position:relative}
    .signal-panel{width:min(100%,380px);background:#18231f;color:#fff;padding:25px;position:relative;box-shadow:15px 15px 0 rgba(15,110,92,.18);animation:lift 5s ease-in-out infinite}
    .signal-head{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #415149;padding-bottom:14px}
    .signal-label{font-size:12px;color:#c9d3cc}
    .signal-mark{width:11px;height:11px;border-radius:50%;background:var(--green);box-shadow:0 0 0 5px rgba(184,243,107,.15)}
    .signal-big{font-size:32px;font-weight:800;margin:17px 0 2px}
    .signal-sub{font-size:12px;color:#c9d3cc}
    .signal-list{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:19px}
    .signal-item{border:1px solid #405048;padding:10px;font-size:12px;color:#e5eee7}
    .signal-item b{display:block;color:var(--green);font-size:14px}
    .hero-stats{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid rgba(24,35,31,.22);margin-top:53px;padding-top:22px}
    .stat{padding:0 20px;border-right:1px solid rgba(24,35,31,.22)}
    .stat:first-child{padding-left:0}
    .stat:last-child{border:0}
    .stat strong{font-size:19px;display:block}
    .stat span{font-size:12px;color:#526259}
    .section{padding:76px 0}
    .section-tint{background:#edf2e9}
    .section-dark{background:#18231f;color:#f4f7f3}
    .section-dark .section-intro,.section-dark .eyebrow{color:#c4d0c8}
    .section-heading{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:30px}
    .section-heading h2{font-size:clamp(28px,4vw,42px);line-height:1.18;letter-spacing:0;margin:9px 0 0}
    .section-intro{max-width:520px;color:var(--muted);margin:0}
    .about-grid{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:start}
    .about-copy{font-size:16px;color:#46534c;margin:15px 0 0}
    .about-points{display:grid;grid-template-columns:1fr 1fr;gap:0 22px;border-top:1px solid var(--line)}
    .about-point{padding:16px 0;border-bottom:1px solid var(--line)}
    .about-point strong{display:block;font-size:15px;margin-bottom:3px}
    .about-point span{font-size:13px;color:var(--muted)}
    .mini-tag{display:inline-block;font-size:11px;line-height:1.4;color:#225c4d;border:1px solid #b8d8c5;padding:5px 8px;margin:4px 5px 0 0}
    .cap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:#dce4dc;border:1px solid #dce4dc}
    .cap-item{background:#fff;padding:22px;min-height:175px;transition:transform .2s,box-shadow .2s}
    .cap-item:hover{position:relative;z-index:1;transform:translateY(-3px);box-shadow:0 12px 26px rgba(24,35,31,.09)}
    .cap-number{color:var(--teal);font-weight:800;font-size:12px}
    .cap-item h3{font-size:18px;margin:12px 0 6px}
    .cap-item p{font-size:13px;color:var(--muted);margin:0}
    .platform-strip{display:flex;align-items:center;justify-content:space-between;gap:28px;border-top:1px solid #405048;border-bottom:1px solid #405048;padding:22px 0;margin-top:30px}
    .platform-strip strong{font-size:14px;white-space:nowrap}
    .tag-list{display:flex;flex-wrap:wrap;gap:7px}
    .tag-list span{border:1px solid #506057;padding:5px 9px;font-size:11px;color:#d7e0d9}
    .process{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}
    .step{padding:20px 22px 0 0;position:relative}
    .step:not(:last-child):after{content:"";height:1px;background:#b9c9bd;position:absolute;top:-1px;left:30px;right:15px}
    .step-no{display:grid;place-items:center;width:30px;height:30px;background:var(--green);color:var(--ink);font-size:12px;font-weight:800;position:relative;z-index:1}
    .step h3{font-size:17px;margin:15px 0 6px}
    .step p{margin:0;color:var(--muted);font-size:13px}
    .industry-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:48px;align-items:start}
    .industry-list{display:grid;grid-template-columns:repeat(2,1fr);gap:0 20px}
    .industry-list div{padding:13px 0;border-bottom:1px solid var(--line);font-weight:650;font-size:14px}
    .industry-list span{display:block;font-size:12px;color:var(--muted);font-weight:400;margin-top:3px}
    .network-band{display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center;padding:25px 0;border-top:1px solid #405048;border-bottom:1px solid #405048}
    .network-band h3{margin:0 0 6px;font-size:19px}
    .network-band p{margin:0;color:#c4d0c8;font-size:13px;max-width:720px}
    .network-mark{font-size:28px;font-weight:850;color:var(--green);white-space:nowrap}
    .case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
    .case{border-top:3px solid var(--teal);padding:18px 0 0}
    .case img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover;background:#e2e8e1}
    .case h3{font-size:18px;margin:16px 0 6px}
    .case p{font-size:13px;color:var(--muted);margin:0}
    .case.square img{aspect-ratio:1/1;object-fit:cover}
    .score-panel{display:grid;grid-template-columns:.75fr 1.25fr;gap:44px;align-items:center;padding:27px;background:#fff;border-left:4px solid var(--coral)}
    .rating{border-right:1px solid var(--line);padding-right:28px}
    .rating-label{font-size:13px;color:var(--muted)}
    .rating-score{font-size:54px;line-height:1.1;font-weight:850;margin:8px 0}
    .stars{color:#e9783f;letter-spacing:0;font-size:20px}
    .rating small{font-size:12px;color:var(--muted)}
    .review-table-wrap{overflow-x:auto}
    .review-table{width:100%;border-collapse:collapse;min-width:560px}
    .review-table th,.review-table td{text-align:left;padding:10px 11px;border-bottom:1px solid #e8ece7;font-size:12px}
    .review-table th{color:#627168;font-weight:650}
    .review-table td:last-child{color:#176b58;font-weight:750}
    .quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .quote{border-top:1px solid #526057;padding:17px 0}
    .quote p{font-size:14px;color:#e2e9e4;margin:0 0 17px}
    .quote footer{font-size:12px;color:#b8c5bd}
    .quote footer strong{display:block;color:#fff;font-size:13px}
    .token-grid{display:grid;grid-template-columns:1fr 1fr;gap:42px;align-items:start}
    .token-copy h3{font-size:22px;margin:0 0 10px}
    .token-copy p{color:var(--muted);font-size:14px}
    .token-steps{counter-reset:tok;list-style:none;padding:0;margin:20px 0 0}
    .token-steps li{counter-increment:tok;padding:12px 0;border-bottom:1px solid var(--line);font-size:14px}
    .token-steps li:before{content:"0" counter(tok);color:var(--teal);font-weight:800;margin-right:12px}
    .price-note{padding:21px;border:1px solid #cbd7cc;background:#edf2e9}
    .price-note strong{display:block;margin-bottom:6px}
    .price-note p{font-size:13px;color:var(--muted);margin:0}
    .faq-list{border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-item summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:16px;padding:17px 0;font-weight:700}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"+";font-size:20px;color:var(--teal);line-height:1}
    .faq-item[open] summary:after{content:"−"}
    .faq-answer{padding:0 35px 17px 0;color:var(--muted);font-size:14px}
    .article-list{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
    .article{border-top:2px solid #a9bfad;padding-top:12px;text-decoration:none}
    .article:hover{border-color:var(--teal)}
    .article span{font-size:11px;color:var(--teal)}
    .article strong{display:block;margin-top:8px;font-size:14px}
    .article small{display:block;color:var(--muted);font-size:12px;margin-top:7px}
    .contact-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:52px;align-items:start}
    .contact-list{list-style:none;padding:0;margin:22px 0}
    .contact-list li{padding:10px 0;border-bottom:1px solid var(--line);font-size:14px}
    .contact-list strong{display:inline-block;min-width:112px}
    .contact-form{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field{display:flex;flex-direction:column;gap:6px}
    .field.full{grid-column:1/-1}
    .field label{font-size:12px;font-weight:700}
    .field input,.field select,.field textarea{width:100%;border:1px solid #cbd5cc;border-radius:2px;padding:11px 12px;background:#fff;color:var(--ink);outline:none}
    .field input:focus,.field select:focus,.field textarea:focus{border-color:var(--teal);box-shadow:0 0 0 3px rgba(15,110,92,.1)}
    .field textarea{min-height:115px;resize:vertical}
    .form-hint{font-size:11px;color:var(--muted);margin:0}
    .service-links{display:flex;flex-wrap:wrap;gap:10px 20px;padding-top:16px;border-top:1px solid var(--line)}
    .service-links a{font-size:12px;text-decoration:none;color:#405249}
    .service-links a:hover{color:var(--teal);text-decoration:underline}
    .footer{background:#e8eee7;color:#26352d;border-top:1px solid #d6dfd7}
    .footer-inner{padding:24px 0;display:flex;justify-content:space-between;align-items:center;gap:20px}
    .footer p{font-size:12px;color:#536158;margin:0}
    .footer-links{display:flex;flex-wrap:wrap;gap:8px 16px}
    .footer-links a{font-size:12px;color:#35443b;text-decoration:none}
    .float-tools{position:fixed;right:16px;bottom:18px;z-index:15;display:flex;flex-direction:column;gap:8px}
    .float-tools a{width:46px;height:46px;display:grid;place-items:center;text-decoration:none;background:var(--ink);color:#fff;border:1px solid #526057;font-size:11px;text-align:center;line-height:1.2}
    .float-tools a:hover{background:var(--teal)}
    .reveal{opacity:0;transform:translateY(14px);transition:opacity .55s ease,transform .55s ease}
    .reveal.is-visible{opacity:1;transform:translateY(0)}
    @keyframes lift{0%,100%{transform:translateY(0)}50%{transform:translateY(-7px)}}
    @media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation-duration:.01ms!important;transition-duration:.01ms!important}.reveal{opacity:1;transform:none}}
    @media(max-width:980px){
      .nav-links a{padding-inline:6px;font-size:12px}
      .nav-row{gap:12px}
      .nav-cta{padding:9px 11px}
      .hero-grid{gap:25px}
      .article-list{grid-template-columns:repeat(3,1fr)}
    }
    @media(max-width:760px){
      .container{width:min(var(--max),calc(100% - 32px))}
      .nav-row{min-height:66px}
      .menu-toggle{display:block;margin-left:auto}
      .nav-cta{display:none}
      .nav-links{display:none;position:absolute;top:66px;left:0;right:0;background:var(--paper);border-bottom:1px solid var(--line);padding:10px 16px 15px;align-items:stretch}
      .nav-links.open{display:grid;grid-template-columns:repeat(3,1fr)}
      .nav-links a{padding:10px;font-size:13px}
      .hero-inner{padding:54px 0 38px}
      .hero-grid{grid-template-columns:1fr}
      .hero-art{min-height:240px}
      .hero-stats{grid-template-columns:repeat(2,1fr);gap:15px 0;margin-top:35px}
      .stat:nth-child(2){border-right:0}
      .stat:nth-child(3){padding-left:0}
      .section{padding:56px 0}
      .section-heading{display:block}
      .section-intro{margin-top:12px}
      .about-grid,.industry-layout,.score-panel,.token-grid,.contact-layout{grid-template-columns:1fr;gap:26px}
      .cap-grid{grid-template-columns:repeat(2,1fr)}
      .process{grid-template-columns:repeat(2,1fr);row-gap:24px}
      .step:nth-child(2):after{display:none}
      .case-grid{grid-template-columns:1fr 1fr;gap:22px 16px}
      .rating{border-right:0;border-bottom:1px solid var(--line);padding:0 0 20px}
      .quotes{grid-template-columns:1fr 1fr}
      .platform-strip{display:block}
      .platform-strip .tag-list{margin-top:14px}
      .network-band{grid-template-columns:1fr}
      .network-mark{font-size:23px}
      .article-list{grid-template-columns:1fr 1fr}
      .footer-inner{display:block}
      .footer-links{margin-top:12px}
    }
    @media(max-width:480px){
      h1{font-size:42px}
      .hero-copy{font-size:15px}
      .hero-art{min-height:220px}
      .signal-panel{padding:19px}
      .cap-grid,.industry-list,.quotes,.case-grid,.contact-form{grid-template-columns:1fr}
      .cap-item{min-height:auto}
      .step{padding-right:10px}
      .article-list{grid-template-columns:1fr 1fr}
      .field.full{grid-column:auto}
      .float-tools{right:8px;bottom:10px}
      .float-tools a{width:40px;height:40px}
    }