:root{--ink:#19233b;--muted:#64708a;--paper:#f8faff;--white:#fff;--line:#e5eaf5;--violet:#6548e8;--blue:#3887f6;--pink:#f45f9a;--mint:#c7f3df;--shadow:0 18px 50px rgba(42,58,104,.09);--radius:22px}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth;scroll-padding-top:90px}
    body{margin:0;background:linear-gradient(180deg,#f8faff 0%,#fff 34%,#f5f8ff 100%);color:var(--ink);font-family:ui-sans-serif,system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif;line-height:1.65}
    a{color:inherit;text-decoration:none}
    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(255,255,255,.94);border-bottom:1px solid rgba(229,234,245,.88);backdrop-filter:blur(14px)}
    .nav-row{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .brand{display:flex;align-items:center;gap:11px;flex:none;font-size:19px;font-weight:800;letter-spacing:-.04em}
    .ai-page-logo{width:42px;max-width:100%;height:auto;border-radius:12px}
    .nav-links{display:flex;align-items:center;justify-content:flex-end;gap:0;flex-wrap:wrap}
    .nav-links a{padding:9px 10px;color:#526079;font-size:13px;border-radius:10px;transition:background .2s,color .2s}
    .nav-links a:hover{background:#f0edff;color:var(--violet)}
    .nav-actions{display:flex;align-items:center;gap:10px;flex:none}
    .menu-toggle{display:none;border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:12px;padding:9px 12px;cursor:pointer}
    .button{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 19px;border:0;border-radius:13px;background:linear-gradient(110deg,var(--violet),#8a5ef1 56%,var(--pink));color:#fff;font-weight:750;box-shadow:0 9px 22px rgba(101,72,232,.22);transition:transform .2s,box-shadow .2s}
    .button:hover{transform:translateY(-2px);box-shadow:0 13px 26px rgba(101,72,232,.28)}
    .button-plain{background:#fff;color:var(--ink);border:1px solid var(--line);box-shadow:none}
    .hero{position:relative;overflow:hidden;padding:78px 0 66px}
    .hero:before,.hero:after{content:"";position:absolute;pointer-events:none;border-radius:50%;filter:blur(1px)}
    .hero:before{width:360px;height:360px;right:-105px;top:-120px;background:radial-gradient(circle,rgba(192,171,255,.43),rgba(192,171,255,0) 70%)}
    .hero:after{width:340px;height:340px;left:-170px;bottom:-200px;background:radial-gradient(circle,rgba(151,224,255,.42),rgba(151,224,255,0) 70%)}
    .hero-grid{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:54px;align-items:center}
    .eyebrow{display:inline-flex;align-items:center;gap:9px;color:#6045d4;font-size:13px;font-weight:750;letter-spacing:.08em}
    .eyebrow:before{content:"";width:24px;height:2px;background:linear-gradient(90deg,var(--violet),var(--pink))}
    h1,h2,h3,p{margin-top:0}
    h1{max-width:730px;margin:18px 0 18px;font-size:clamp(40px,6vw,68px);line-height:1.08;letter-spacing:-.055em}
    .gradient-text{background:linear-gradient(100deg,#6045db,#3289f4 55%,#eb5595);-webkit-background-clip:text;background-clip:text;color:transparent}
    .hero-copy{max-width:630px;margin-bottom:26px;color:#5c6880;font-size:17px}
    .hero-buttons{display:flex;gap:12px;flex-wrap:wrap}
    .hero-note{margin-top:17px;color:#79839a;font-size:13px}
    .hero-art{position:relative;min-height:330px;display:grid;place-items:center}
    .orbit{position:absolute;width:280px;aspect-ratio:1;border:1px solid rgba(117,105,220,.22);border-radius:50%;animation:orbit 24s linear infinite}
    .orbit:before,.orbit:after{content:"";position:absolute;width:12px;height:12px;border-radius:50%;background:#e85f9c;box-shadow:0 0 0 7px rgba(232,95,156,.12)}
    .orbit:before{left:22px;top:65px}.orbit:after{right:14px;bottom:70px;background:#428bea;box-shadow:0 0 0 7px rgba(66,139,234,.12)}
    .orbit-inner{position:absolute;width:205px;aspect-ratio:1;border:1px dashed rgba(101,72,232,.23);border-radius:50%;animation:orbit 18s linear infinite reverse}
    .hub{position:relative;z-index:1;width:190px;padding:25px 20px;text-align:center;border:1px solid rgba(255,255,255,.9);border-radius:28px;background:linear-gradient(145deg,#fff,#f2f0ff);box-shadow:0 24px 60px rgba(83,75,172,.15)}
    .hub-mark{width:56px;height:56px;margin:0 auto 12px;display:grid;place-items:center;border-radius:19px;background:linear-gradient(135deg,#7155e9,#55a3f6 70%,#ff79a6);color:#fff;font-size:25px;font-weight:900}
    .hub strong{display:block;font-size:18px}.hub small{color:var(--muted)}
    .float-chip{position:absolute;padding:9px 13px;border:1px solid #fff;border-radius:13px;background:#fff;box-shadow:var(--shadow);font-size:12px;font-weight:750}
    .chip-one{top:40px;left:4%}.chip-two{top:87px;right:0}.chip-three{bottom:35px;left:5%}.chip-four{bottom:45px;right:2%}
    .section{padding:72px 0}
    .section-tint{background:linear-gradient(120deg,rgba(240,236,255,.72),rgba(236,248,255,.7))}
    .section-head{max-width:700px;margin-bottom:32px}
    .section-head.center{text-align:center;margin-inline:auto}
    .section-head h2{margin:10px 0 12px;font-size:clamp(28px,4vw,42px);line-height:1.18;letter-spacing:-.04em}
    .section-head p{margin:0;color:var(--muted)}
    .metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:10px}
    .metric{padding:20px;border:1px solid var(--line);border-radius:17px;background:#fff}
    .metric strong{display:block;font-size:21px;letter-spacing:-.03em}.metric span{color:var(--muted);font-size:13px}
    .intro-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:40px;align-items:start}
    .intro-copy{color:#58657e}
    .intro-copy p:last-child{margin-bottom:0}
    .feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .feature{padding:18px;border-radius:16px;background:#fff;border:1px solid var(--line)}
    .feature b{display:block;margin-bottom:5px}.feature span{font-size:13px;color:var(--muted)}
    .service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .service{padding:22px;border-radius:19px;background:#fff;border:1px solid var(--line);transition:transform .22s,box-shadow .22s}
    .service:hover,.quote:hover,.case:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
    .service-icon{width:42px;height:42px;display:grid;place-items:center;border-radius:14px;background:linear-gradient(135deg,#eee9ff,#e6f5ff);color:#6548d9;font-size:20px;margin-bottom:15px}
    .service h3{margin-bottom:7px;font-size:17px}.service p{margin:0;color:var(--muted);font-size:13px}
    .tag-row{display:flex;flex-wrap:wrap;gap:9px}
    .tag{padding:8px 13px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#526079;font-size:13px}
    .workflow{display:grid;grid-template-columns:repeat(4,1fr);gap:0;counter-reset:step}
    .step{position:relative;padding:22px 20px 20px;border-top:2px solid #dcd6fb;counter-increment:step}
    .step:before{content:"0" counter(step);position:absolute;top:-17px;left:18px;padding:2px 8px;background:#f8faff;color:#674bda;font-size:12px;font-weight:800}
    .step h3{margin:14px 0 7px;font-size:17px}.step p{margin:0;color:var(--muted);font-size:13px}
    .split{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:start}
    .info-panel{padding:25px;border-radius:var(--radius);background:#fff;border:1px solid var(--line)}
    .info-panel h3{margin-bottom:13px}
    .check-list{padding:0;margin:0;list-style:none;display:grid;gap:10px}
    .check-list li{position:relative;padding-left:23px;color:#536079;font-size:14px}
    .check-list li:before{content:"✓";position:absolute;left:0;color:#21a878;font-weight:900}
    .table-wrap{overflow-x:auto;border-radius:18px;border:1px solid var(--line);background:#fff}
    table{width:100%;border-collapse:collapse;min-width:700px}
    th,td{text-align:left;padding:15px 17px;border-bottom:1px solid var(--line);font-size:14px}
    th{background:#f4f2ff;color:#45329d;font-size:13px}
    tr:last-child td{border-bottom:0}
    .score-panel{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:17px;padding:22px 25px;border-radius:19px;background:linear-gradient(110deg,#f0edff,#e9f7ff);border:1px solid #e3e3fa}
    .score-panel strong{font-size:27px;color:#5740c5}.stars{color:#e99b22;letter-spacing:3px}
    .cases{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .case{overflow:hidden;border-radius:19px;background:#fff;border:1px solid var(--line);transition:transform .22s,box-shadow .22s}
    .case img{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;background:#f1f3f8}
    .case-copy{padding:18px}.case-copy h3{margin-bottom:6px;font-size:17px}.case-copy p{margin:0;color:var(--muted);font-size:13px}
    .quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .quote{padding:20px;border:1px solid var(--line);border-radius:18px;background:#fff;transition:transform .22s,box-shadow .22s}
    .quote p{margin:0 0 15px;color:#536079;font-size:14px}
    .quote strong{font-size:13px}.quote span{display:block;color:#8a93a6;font-size:12px}
    .article-list{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
    .article-list a{min-height:108px;padding:17px;border:1px solid var(--line);border-radius:15px;background:#fff;display:flex;flex-direction:column;justify-content:space-between;transition:border-color .2s,transform .2s}
    .article-list a:hover{border-color:#aaa0ed;transform:translateY(-3px)}
    .article-list strong{font-size:14px}.article-list span{color:#7c879d;font-size:12px}
    .faq-list{display:grid;gap:10px}
    details{padding:0 18px;border:1px solid var(--line);border-radius:15px;background:#fff}
    summary{position:relative;padding:17px 28px 17px 0;cursor:pointer;list-style:none;font-weight:700;font-size:14px}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";position:absolute;right:0;top:14px;color:#684cdb;font-size:22px;font-weight:400}
    details[open] summary:after{content:"−"}
    details p{margin:0;padding:0 0 17px;color:var(--muted);font-size:14px}
    .contact-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:24px;align-items:start}
    .contact-card{padding:25px;border-radius:21px;background:linear-gradient(145deg,#f1edff,#e8f7ff);border:1px solid #e4e3f4}
    .contact-card h3{margin-bottom:10px}
    .contact-card p{color:#596780;font-size:14px}
    .contact-links{display:grid;gap:9px;font-size:14px}
    .contact-links a{color:#503cc0;overflow-wrap:anywhere}
    .form-card{padding:25px;border:1px solid var(--line);border-radius:21px;background:#fff}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field{display:grid;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:12px 13px;border:1px solid #dfe4ef;border-radius:11px;background:#fbfcff;color:var(--ink);outline:none}
    .field input:focus,.field select:focus,.field textarea:focus{border-color:#8e7bea;box-shadow:0 0 0 3px rgba(101,72,232,.1)}
    .field textarea{min-height:115px;resize:vertical}
    .form-foot{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:15px}
    .form-foot small{color:#7d879a}
    .join-band{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:27px 30px;border-radius:22px;background:linear-gradient(110deg,#eeeaff,#e9f8ff);border:1px solid #e2e5fa}
    .join-band h2{margin:0 0 5px;font-size:25px}.join-band p{margin:0;color:var(--muted)}
    .site-footer{margin-top:0;padding:30px 0;background:#edf1fa;color:#29334b;border-top:1px solid #e0e5f0}
    .footer-row{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
    .footer-links{display:flex;gap:8px 16px;flex-wrap:wrap;font-size:13px;color:#46536c}
    .copyright{font-size:12px;color:#6d7890}
    .floating{position:fixed;right:18px;bottom:20px;z-index:15;display:grid;gap:9px}
    .float-link{display:grid;place-items:center;width:48px;height:48px;border-radius:16px;background:#fff;border:1px solid var(--line);box-shadow:0 7px 24px rgba(34,48,83,.13);color:#5741c7;font-size:19px}
    .reveal{opacity:0;transform:translateY(16px);transition:opacity .65s ease,transform .65s ease}
    .reveal.visible{opacity:1;transform:translateY(0)}
    @keyframes orbit{to{transform:rotate(360deg)}}
    @media(max-width:1000px){.nav-links{gap:0}.nav-links a{padding:8px 7px;font-size:12px}.nav-actions .button{padding:10px 13px}.service-grid{grid-template-columns:repeat(2,1fr)}.article-list{grid-template-columns:repeat(3,1fr)}}
    @media(max-width:760px){
      .container{width:min(100% - 32px,600px)}
      .nav-row{min-height:68px;flex-wrap:wrap}
      .menu-toggle{display:block}
      .nav-actions{margin-left:auto}
      .nav-links{display:none;width:100%;padding:0 0 12px;justify-content:flex-start;gap:3px;max-height:55vh;overflow:auto}
      .nav-links.open{display:flex}
      .nav-links a{padding:8px 10px;font-size:13px}
      .hero{padding:56px 0 48px}
      .hero-grid,.intro-grid,.split,.contact-grid{grid-template-columns:1fr;gap:28px}
      .hero-art{min-height:285px}
      .metrics{grid-template-columns:repeat(2,1fr)}
      .workflow{grid-template-columns:repeat(2,1fr);gap:12px}
      .step{border-top:0;border-left:2px solid #dcd6fb;padding:12px 14px}
      .step:before{top:8px;left:-8px;background:#fff}
      .cases,.quotes{grid-template-columns:repeat(2,1fr)}
      .score-panel{align-items:flex-start;flex-direction:column}
      .join-band{align-items:flex-start;flex-direction:column}
    }
    @media(max-width:520px){
      .container{width:calc(100% - 28px)}
      h1{font-size:42px}
      .hero-copy{font-size:15px}
      .hero-art{min-height:245px}
      .orbit{width:230px}.orbit-inner{width:168px}.hub{width:160px;padding:20px 14px}
      .float-chip{font-size:10px;padding:7px 9px}
      .service-grid,.feature-list,.cases,.quotes,.article-list,.form-grid{grid-template-columns:1fr}
      .field.full{grid-column:auto}
      .workflow{grid-template-columns:1fr 1fr}
      .section{padding:56px 0}
      .metric{padding:16px}
      .footer-row{align-items:flex-start;flex-direction:column}
    }
    @media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation-duration:.01ms!important;transition-duration:.01ms!important}}