:root{--ink:#17212b;--muted:#596675;--line:#dfe5eb;--paper:#f7f8fb;--white:#fff;--teal:#087f8c;--teal-dark:#075b66;--coral:#ef785f;--lime:#d9f06c;--blue:#dceef5;--shadow:0 14px 36px rgba(27,48,61,.09)}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth;scroll-padding-top:88px}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.65}
    a{color:inherit}
    button,input,select,textarea{font:inherit}
    .container{width:min(1160px,calc(100% - 40px));margin-inline:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(247,248,251,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(223,229,235,.85)}
    .header-inner{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:800;white-space:nowrap}
    .brand img{display:block;width:38px;height:auto}
    .nav-links{display:flex;align-items:center;gap:0;list-style:none;margin:0;padding:0}
    .nav-links a{display:block;padding:10px 9px;font-size:13px;color:#354450;text-decoration:none;border-radius:4px;white-space:nowrap;transition:background .2s,color .2s}
    .nav-links a:hover,.nav-links a:focus-visible{background:#e9f2f3;color:var(--teal-dark)}
    .nav-cta,.button{display:inline-flex;justify-content:center;align-items:center;gap:8px;padding:11px 17px;background:var(--teal);color:white;border:1px solid var(--teal);border-radius:4px;text-decoration:none;font-weight:700;transition:transform .2s,background .2s,box-shadow .2s}
    .nav-cta{font-size:13px;white-space:nowrap}
    .button:hover,.nav-cta:hover{background:var(--teal-dark);transform:translateY(-2px);box-shadow:0 8px 18px rgba(8,127,140,.2)}
    .button.secondary{background:white;color:var(--ink);border-color:var(--line)}
    .menu-toggle{display:none;border:1px solid var(--line);background:white;color:var(--ink);border-radius:4px;width:42px;height:42px;cursor:pointer}
    .hero{position:relative;overflow:hidden;padding:72px 0 48px;background:linear-gradient(115deg,#f7f8fb 0%,#eef5f5 58%,#f9f5ef 100%);border-bottom:1px solid var(--line)}
    .hero:before{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(110deg,transparent 0 57%,rgba(8,127,140,.07) 57% 57.2%,transparent 57.2% 70%,rgba(239,120,95,.08) 70% 70.2%,transparent 70.2%);animation:scan 12s linear infinite}
    @keyframes scan{to{background-position:220px 0}}
    .hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,1.2fr) minmax(270px,.8fr);gap:52px;align-items:center}
    .eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--teal-dark);font-size:12px;font-weight:800;letter-spacing:1.4px;text-transform:uppercase}
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--coral)}
    h1{max-width:720px;margin:17px 0 18px;font-size:clamp(40px,5vw,66px);line-height:1.08;letter-spacing:0;font-weight:800}
    .hero-copy{max-width:650px;margin:0;color:#475560;font-size:17px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:27px}
    .hero-note{margin-top:18px;font-size:13px;color:var(--muted)}
    .hero-panel{position:relative;padding:25px;background:#fff;border:1px solid #d8e4e5;border-radius:6px;box-shadow:var(--shadow)}
    .hero-panel:after{content:"";position:absolute;right:-8px;top:-8px;width:44px;height:44px;border-top:3px solid var(--coral);border-right:3px solid var(--coral)}
    .panel-top{display:flex;justify-content:space-between;align-items:center;padding-bottom:15px;border-bottom:1px solid var(--line);font-weight:750}
    .signal{display:inline-flex;align-items:center;gap:7px;color:var(--teal-dark);font-size:12px}
    .signal:before{content:"";width:8px;height:8px;border-radius:50%;background:#61bd89;box-shadow:0 0 0 4px #e4f5eb}
    .model-cloud{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0}
    .model-cloud span,.tag{padding:5px 9px;border:1px solid #dbe4e7;border-radius:3px;background:#f7faf9;font-size:12px;color:#344750}
    .panel-foot{display:flex;justify-content:space-between;gap:12px;padding-top:14px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}
    .metrics{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:42px;background:white;border:1px solid var(--line);border-radius:5px}
    .metric{padding:17px 20px;border-right:1px solid var(--line)}
    .metric:last-child{border:0}
    .metric strong{display:block;font-size:20px;color:var(--teal-dark)}
    .metric span{font-size:12px;color:var(--muted)}
    main{overflow:hidden}
    .section{padding:76px 0}
    .section.tinted{background:#eef3f4;border-block:1px solid #e3e9eb}
    .section-heading{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:30px}
    .section-heading h2{margin:0;font-size:32px;line-height:1.2;letter-spacing:0}
    .section-heading p{max-width:540px;margin:0;color:var(--muted)}
    .kicker{margin:0 0 9px;color:var(--teal);font-size:12px;font-weight:800;letter-spacing:1.3px}
    .about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:start}
    .about-copy{font-size:16px;color:#43515d}
    .about-copy p{margin:0 0 15px}
    .about-list{display:grid;grid-template-columns:repeat(2,1fr);gap:0 22px;margin:24px 0 0;padding:0;list-style:none}
    .about-list li{padding:12px 0;border-top:1px solid var(--line);font-weight:650}
    .about-list li:before{content:"+";margin-right:9px;color:var(--teal);font-weight:800}
    .capability-list{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}
    .capability{padding:16px 0;border-bottom:1px solid var(--line)}
    .capability h3{margin:0 0 5px;font-size:16px}
    .capability p{margin:0;color:var(--muted);font-size:13px}
    .service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0 24px}
    .service-item{min-height:148px;padding:20px 0;border-top:1px solid var(--line)}
    .service-item h3{display:flex;align-items:center;gap:10px;margin:0 0 8px;font-size:17px}
    .service-item h3:before{content:"";width:8px;height:8px;background:var(--coral);transform:rotate(45deg)}
    .service-item p{margin:0;color:var(--muted);font-size:14px}
    .tagline{margin-top:28px;padding:20px 22px;background:#e5f1f1;border-left:3px solid var(--teal);color:#2c474c}
    .tagline strong{color:var(--teal-dark)}
    .industries{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
    .industry{padding:16px 14px;background:white;border:1px solid var(--line);font-weight:650;transition:transform .2s,border-color .2s}
    .industry:hover{transform:translateY(-3px);border-color:#8bbec1}
    .industry small{display:block;margin-top:4px;font-weight:400;color:var(--muted)}
    .network-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:44px;align-items:start}
    .model-cloud.large{margin:0}
    .network-note{padding:22px;background:#fff;border-left:3px solid var(--coral)}
    .network-note h3{margin:0 0 7px;font-size:18px}
    .network-note p{margin:0;color:var(--muted);font-size:14px}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step}
    .step{position:relative;padding-top:22px;border-top:2px solid #9bb8bb}
    .step:before{counter-increment:step;content:"0" counter(step);position:absolute;top:-17px;left:0;padding:3px 8px;background:var(--paper);color:var(--teal);font-size:13px;font-weight:800}
    .step h3{margin:8px 0;font-size:17px}
    .step p{margin:0;color:var(--muted);font-size:14px}
    .case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .case{background:white;border:1px solid var(--line);overflow:hidden;transition:transform .25s,box-shadow .25s}
    .case:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
    .case .media{aspect-ratio:16/9;overflow:hidden;background:#e6edef}
    .case .media img{display:block;width:100%;height:100%;object-fit:cover}
    .case-copy{padding:17px}
    .case-copy h3{margin:0 0 6px;font-size:17px}
    .case-copy p{margin:0;color:var(--muted);font-size:13px}
    .review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0 22px}
    .review{padding:20px 0;border-top:1px solid var(--line)}
    .review blockquote{margin:0;color:#35434d;font-size:14px}
    .review figcaption{margin-top:13px;font-size:13px;font-weight:750;color:var(--teal-dark)}
    .review figcaption span{display:block;color:var(--muted);font-weight:400}
    .rating-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:34px;align-items:start}
    .rating-score{padding:25px;background:#fff;border:1px solid var(--line)}
    .stars{color:#e19a28;font-size:23px;letter-spacing:2px}
    .rating-score strong{display:block;margin:4px 0;font-size:48px;line-height:1.15}
    .rating-score p{margin:0;color:var(--muted);font-size:13px}
    .table-wrap{overflow-x:auto;border:1px solid var(--line);background:white}
    table{width:100%;border-collapse:collapse;min-width:640px;text-align:left}
    th,td{padding:13px 15px;border-bottom:1px solid var(--line);font-size:13px}
    th{background:#eaf1f2;color:#263941}
    td:last-child{color:var(--teal-dark);font-weight:650}
    tr:last-child td{border-bottom:0}
    .comparison-note{margin:12px 0 0;font-size:12px;color:var(--muted)}
    .match-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:42px;align-items:start}
    .match-copy p{color:var(--muted)}
    .match-copy .button{margin-top:8px}
    .form-grid{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:13px;font-weight:700}
    .field input,.field select,.field textarea{width:100%;padding:11px 12px;border:1px solid #cfd9df;border-radius:3px;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(8,127,140,.1)}
    .field textarea{min-height:112px;resize:vertical}
    .form-submit{grid-column:1/-1;justify-self:start;cursor:pointer}
    .form-status{grid-column:1/-1;margin:0;color:var(--teal-dark);font-size:13px}
    .faq-list{border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-item summary{position:relative;padding:17px 38px 17px 0;cursor:pointer;font-weight:700;list-style:none}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"+";position:absolute;right:5px;top:12px;color:var(--teal);font-size:23px;font-weight:400;transition:transform .2s}
    .faq-item[open] summary:after{transform:rotate(45deg)}
    .faq-item p{max-width:850px;margin:0;padding:0 30px 17px 0;color:var(--muted);font-size:14px}
    .content-links{display:grid;grid-template-columns:1fr 1fr;gap:36px}
    .content-links h3{margin:0 0 13px;font-size:18px}
    .article-links,.friend-links{display:flex;flex-wrap:wrap;gap:8px}
    .article-links a,.friend-links a{padding:8px 10px;background:#fff;border:1px solid var(--line);color:#344650;text-decoration:none;font-size:13px;transition:border-color .2s,color .2s}
    .article-links a:hover,.friend-links a:hover{border-color:var(--teal);color:var(--teal-dark)}
    .contact-band{padding:24px;background:#e4efef;border:1px solid #d3e3e3;display:flex;align-items:center;justify-content:space-between;gap:22px}
    .contact-band h2{margin:0;font-size:24px}
    .contact-band p{margin:5px 0 0;color:var(--muted);font-size:14px}
    .contact-band .button{white-space:nowrap}
    .site-footer{margin-top:0;background:#eef1f4;color:#23313a;border-top:1px solid var(--line)}
    .footer-main{display:flex;justify-content:space-between;gap:32px;padding:26px 0}
    .footer-brand{font-weight:800}
    .footer-contact{display:flex;flex-wrap:wrap;gap:10px 20px;color:#475560;font-size:13px}
    .footer-contact a{color:var(--teal-dark);text-decoration:none}
    .copyright{padding:12px 0;border-top:1px solid #d9e0e5;color:#596675;font-size:12px}
    .floating{position:fixed;right:18px;bottom:20px;z-index:15;display:grid;gap:8px}
    .floating a{display:flex;align-items:center;justify-content:center;width:46px;height:46px;background:var(--teal);color:white;border:0;border-radius:50%;text-decoration:none;box-shadow:0 5px 16px rgba(20,55,62,.2);font-size:12px;font-weight:750}
    .floating a:last-child{background:#fff;color:var(--teal-dark);border:1px solid var(--line)}
    [data-reveal]{opacity:0;transform:translateY(14px);transition:opacity .55s ease,transform .55s ease}
    [data-reveal].visible{opacity:1;transform:none}
    @media(max-width:1000px){
      .menu-toggle{display:inline-flex;align-items:center;justify-content:center}
      .header-inner{position:relative}
      .nav-links{display:none;position:absolute;top:72px;left:0;right:0;padding:10px;background:#f7f8fb;border:1px solid var(--line);box-shadow:var(--shadow);grid-template-columns:repeat(3,1fr)}
      .nav-links.open{display:grid}
      .nav-cta{margin-left:auto}
      .hero-grid{gap:30px}
      .service-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:700px){
      .container{width:min(100% - 32px,1160px)}
      .header-inner{min-height:64px;gap:10px}
      .brand img{width:32px}
      .brand{font-size:14px}
      .nav-cta{padding:9px 10px;font-size:12px}
      .nav-links{top:64px}
      .nav-links a{padding:10px 7px;font-size:12px}
      .hero{padding:50px 0 32px}
      .hero-grid,.about-grid,.network-grid,.rating-layout,.match-grid{grid-template-columns:1fr}
      .hero-grid{gap:25px}
      h1{font-size:43px}
      .hero-copy{font-size:15px}
      .metrics{grid-template-columns:1fr 1fr;margin-top:30px}
      .metric:nth-child(2){border-right:0}
      .metric:nth-child(-n+2){border-bottom:1px solid var(--line)}
      .section{padding:54px 0}
      .section-heading{display:block}
      .section-heading h2{font-size:27px;margin-bottom:10px}
      .about-grid{gap:22px}
      .about-list{gap:0 14px}
      .service-grid{grid-template-columns:1fr 1fr;gap:0 16px}
      .service-item{min-height:0;padding:15px 0}
      .service-item h3{font-size:15px}
      .service-item p{font-size:13px}
      .industries{grid-template-columns:repeat(2,1fr);gap:8px}
      .steps{grid-template-columns:1fr 1fr;gap:25px 18px}
      .case-grid,.review-grid{grid-template-columns:1fr}
      .review{padding:16px 0}
      .content-links{grid-template-columns:1fr;gap:24px}
      .contact-band{align-items:flex-start;flex-direction:column}
      .footer-main{flex-direction:column;padding:22px 0;gap:12px}
    }
    @media(max-width:420px){
      .nav-cta{font-size:0;padding:10px}
      .nav-cta:after{content:"访问官网";font-size:12px}
      .nav-links{grid-template-columns:repeat(2,1fr)}
      .form-grid{grid-template-columns:1fr}
      .field.full,.form-submit,.form-status{grid-column:auto}
      .service-grid{grid-template-columns:1fr}
      .floating{right:10px;bottom:12px}
    }
    @media(prefers-reduced-motion:reduce){
      *,*::before,*::after{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
      [data-reveal]{opacity:1;transform:none}
    }