:root {
      color-scheme: light;
      --ink: #18223a;
      --muted: #5f6b82;
      --line: #e4e8f2;
      --paper: #f8f9ff;
      --white: #fff;
      --violet: #6939dc;
      --blue: #326cf4;
      --cyan: #20b9d5;
      --lime: #dafa76;
      --shadow: 0 18px 48px rgba(41, 50, 95, .09);
      --container: 1160px;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 94px; }
    body {
      margin: 0;
      color: var(--ink);
      background:
        radial-gradient(ellipse at 6% 10%, rgba(111, 83, 244, .10), transparent 30rem),
        radial-gradient(ellipse at 95% 32%, rgba(32, 185, 213, .08), transparent 28rem),
        linear-gradient(180deg, #fbfbff 0%, #f7f9ff 52%, #fbfcff 100%);
      font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
      line-height: 1.65;
    }
    a { color: inherit; text-decoration: none; }
    button, input, select, textarea { font: inherit; }
    button, a { -webkit-tap-highlight-color: transparent; }
    img { max-width: 100%; }
    .container { width: min(var(--container), calc(100% - 40px)); margin-inline: auto; }
    .site-header {
      position: sticky;
      inset-block-start: 0;
      z-index: 20;
      background: rgba(251, 251, 255, .9);
      border-bottom: 1px solid rgba(222, 227, 241, .84);
      backdrop-filter: blur(16px);
    }
    .nav-row { display: flex; min-height: 76px; align-items: center; justify-content: space-between; gap: 24px; }
    .brand { display: inline-flex; align-items: center; gap: 11px; flex: 0 0 auto; font-weight: 800; letter-spacing: -.03em; }
    .brand-mark { display: grid; width: 39px; height: 39px; place-items: center; border-radius: 13px; color: #fff; background: linear-gradient(135deg, #7041e7, #267fe9 72%, #27c0d4); box-shadow: 0 7px 18px rgba(99, 73, 224, .25); }
    .ai-page-logo { display: block; width: 32px; max-width: 100%; height: auto; }
    .brand-name { font-size: 17px; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; }
    .nav-links a { padding: 10px 10px; color: #536078; font-size: 13px; white-space: nowrap; transition: color .2s ease; }
    .nav-links a:hover { color: var(--violet); }
    .nav-actions { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
    .menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 13px; color: var(--ink); background: #fff; cursor: pointer; }
    .button { display: inline-flex; min-height: 47px; align-items: center; justify-content: center; gap: 9px; padding: 0 20px; border: 1px solid transparent; border-radius: 14px; font-weight: 750; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
    .button:hover { transform: translateY(-2px); }
    .button-primary { color: #fff; background: linear-gradient(110deg, #6335d8, #356ef4 65%, #28a9d1); box-shadow: 0 10px 24px rgba(84, 76, 219, .22); }
    .button-primary:hover { box-shadow: 0 14px 30px rgba(84, 76, 219, .3); }
    .button-quiet { border-color: #dfe3ef; color: #283650; background: rgba(255,255,255,.86); }
    .hero { position: relative; overflow: hidden; padding: 82px 0 54px; }
    .hero::before, .hero::after { position: absolute; z-index: -1; content: ""; border-radius: 50%; filter: blur(1px); pointer-events: none; }
    .hero::before { width: 380px; height: 380px; top: 36px; right: -130px; background: radial-gradient(circle, rgba(125, 83, 255, .17), rgba(125,83,255,0) 68%); animation: drift 8s ease-in-out infinite alternate; }
    .hero::after { width: 280px; height: 280px; left: 21%; bottom: -160px; background: radial-gradient(circle, rgba(36, 199, 219, .14), transparent 68%); }
    .hero-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(280px, .85fr); gap: 56px; align-items: center; }
    .eyebrow { display: inline-flex; align-items: center; gap: 9px; padding: 7px 12px; border: 1px solid #e5e2fa; border-radius: 999px; color: #583ab4; background: #f2efff; font-size: 12px; font-weight: 750; letter-spacing: .04em; }
    .eyebrow i { width: 7px; height: 7px; border-radius: 50%; background: #7552ed; box-shadow: 0 0 0 4px rgba(117,82,237,.13); }
    h1, h2, h3, p { margin-top: 0; }
    h1 { max-width: 720px; margin: 22px 0 18px; font-size: clamp(38px, 5.5vw, 66px); line-height: 1.1; letter-spacing: -.055em; }
    .hero h1 span { color: #663dd2; }
    .hero-copy { max-width: 620px; margin-bottom: 26px; color: var(--muted); font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
    .hero-note { margin-top: 19px; color: #68738a; font-size: 13px; }
    .hero-note strong { color: #3a4762; }
    .hero-visual { position: relative; min-height: 326px; padding: 26px; overflow: hidden; border: 1px solid rgba(255,255,255,.9); border-radius: 30px; background: linear-gradient(145deg, rgba(255,255,255,.94), rgba(244,242,255,.9) 57%, rgba(234,250,252,.85)); box-shadow: 0 25px 70px rgba(57, 55, 132, .12); }
    .hero-visual::before { position: absolute; inset: auto -45px -90px auto; width: 240px; height: 240px; content: ""; border-radius: 50%; background: radial-gradient(circle, rgba(91,82,228,.19), transparent 70%); }
    .visual-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; color: #657089; font-size: 12px; }
    .live-pill { padding: 5px 9px; border: 1px solid #dcefe7; border-radius: 999px; color: #287b60; background: #f0fbf5; font-weight: 700; }
    .visual-title { margin: 25px 0 19px; font-size: 21px; letter-spacing: -.03em; }
    .flow-stack { display: grid; gap: 11px; }
    .flow-item { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border: 1px solid #e9e8f4; border-radius: 15px; background: rgba(255,255,255,.84); box-shadow: 0 7px 18px rgba(51,55,101,.04); }
    .flow-icon { display: grid; width: 34px; height: 34px; flex: 0 0 auto; place-items: center; border-radius: 11px; color: #5940bf; background: #f0edff; font-size: 15px; font-weight: 800; }
    .flow-item strong { display: block; font-size: 13px; }
    .flow-item small { display: block; color: #788298; font-size: 11px; }
    .flow-arrow { margin-left: auto; color: #9b91d7; }
    .metric-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; padding: 20px 0 48px; }
    .metric { padding: 15px 17px; border-left: 2px solid #8a6cf0; }
    .metric strong { display: block; font-size: 16px; letter-spacing: -.02em; }
    .metric span { display: block; margin-top: 3px; color: var(--muted); font-size: 12px; }
    .section { padding: 66px 0; }
    .section-head { display: flex; align-items: end; justify-content: space-between; gap: 28px; margin-bottom: 28px; }
    .section-head > div { max-width: 720px; }
    .section-kicker { display: block; margin-bottom: 8px; color: #6847d2; font-size: 12px; font-weight: 800; letter-spacing: .11em; text-transform: uppercase; }
    h2 { margin-bottom: 10px; font-size: clamp(27px, 3vw, 38px); line-height: 1.2; letter-spacing: -.045em; }
    .section-head p, .lead { margin-bottom: 0; color: var(--muted); }
    .text-link { color: #5639c0; font-weight: 750; white-space: nowrap; }
    .intro-band { display: grid; grid-template-columns: .82fr 1.18fr; gap: 35px; align-items: center; padding: 32px; border: 1px solid #e3e5f3; border-radius: 24px; background: linear-gradient(115deg, #fff, #f5f2ff 63%, #effaff); }
    .intro-band p { margin-bottom: 0; color: var(--muted); }
    .intro-points { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 13px 20px; }
    .intro-point { display: flex; gap: 10px; align-items: flex-start; }
    .check { display: grid; width: 22px; height: 22px; flex: 0 0 auto; place-items: center; border-radius: 8px; color: #563abf; background: #eae5ff; font-size: 12px; font-weight: 900; }
    .intro-point strong { display: block; font-size: 14px; }
    .intro-point small { display: block; color: var(--muted); font-size: 12px; }
    .service-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 15px; }
    .service-card { position: relative; padding: 22px; overflow: hidden; border: 1px solid #e5e8f1; border-radius: 19px; background: rgba(255,255,255,.88); transition: transform .24s ease, box-shadow .24s ease, border-color .24s ease; }
    .service-card:hover { transform: translateY(-4px); border-color: #d3c9fc; box-shadow: var(--shadow); }
    .service-card:nth-child(3n+2) .service-icon { color: #1a849e; background: #e5f8fb; }
    .service-icon { display: grid; width: 42px; height: 42px; margin-bottom: 16px; place-items: center; border-radius: 14px; color: #613fc7; background: #efebff; font-weight: 850; }
    .service-card h3 { margin-bottom: 7px; font-size: 17px; }
    .service-card p { margin-bottom: 0; color: var(--muted); font-size: 13px; }
    .service-card .mini-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 13px; }
    .mini-tags span, .tag-cloud span { padding: 4px 8px; border-radius: 999px; color: #55627b; background: #f1f3f8; font-size: 11px; }
    .platform-list { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 22px; }
    .platform-list span { padding: 8px 12px; border: 1px solid #e5e8f2; border-radius: 12px; color: #44516a; background: rgba(255,255,255,.76); font-size: 12px; }
    .platform-list span:nth-child(4n+1) { border-color: #e3dcff; background: #f4f1ff; }
    .production-layout { display: grid; grid-template-columns: 1fr .82fr; gap: 22px; align-items: stretch; }
    .production-card { padding: 28px; border: 1px solid #e4e7f0; border-radius: 22px; background: #fff; box-shadow: 0 10px 28px rgba(40,50,90,.045); }
    .production-card h3 { margin-bottom: 10px; font-size: 20px; }
    .production-card > p { color: var(--muted); font-size: 14px; }
    .workflow { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 12px; margin-top: 23px; }
    .workflow-step { padding: 15px; border-radius: 15px; background: #f5f6fc; }
    .workflow-step b { display: block; margin-bottom: 7px; color: #6646ce; font-size: 12px; }
    .workflow-step strong { display: block; font-size: 13px; }
    .workflow-step small { display: block; margin-top: 4px; color: var(--muted); font-size: 11px; }
    .promo-image { overflow: hidden; border-radius: 16px; background: #eef0f7; }
    .promo-image img { display: block; width: 100%; height: auto; object-fit: contain; }
    .image-pair { display: grid; grid-template-columns: 1.15fr .85fr; gap: 12px; margin-top: 18px; align-items: start; }
    .industry-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 12px; }
    .industry-item { padding: 18px; border-top: 2px solid #a78df8; border-radius: 0 0 16px 16px; background: rgba(255,255,255,.84); }
    .industry-item strong { display: block; margin-bottom: 5px; font-size: 14px; }
    .industry-item p { margin: 0; color: var(--muted); font-size: 12px; }
    .network-box { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; align-items: center; padding: 29px; border: 1px solid #dee5f2; border-radius: 22px; background: linear-gradient(120deg, #fff, #f2faff); }
    .network-box h3 { margin-bottom: 8px; font-size: 20px; }
    .network-box p { margin-bottom: 0; color: var(--muted); font-size: 14px; }
    .network-meta { display: flex; flex-wrap: wrap; gap: 9px; }
    .network-meta span { padding: 9px 12px; border: 1px solid #dce4f1; border-radius: 12px; color: #47556f; background: #fff; font-size: 12px; }
    .case-grid { display: grid; grid-template-columns: 1.05fr .95fr .95fr; gap: 15px; align-items: start; }
    .case-card { overflow: hidden; border: 1px solid #e5e7ef; border-radius: 20px; background: #fff; transition: transform .2s ease, box-shadow .2s ease; }
    .case-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
    .case-card .promo-image img { width: 100%; }
    .case-copy { padding: 18px; }
    .case-copy small { color: #6648ca; font-weight: 800; }
    .case-copy h3 { margin: 5px 0 6px; font-size: 17px; }
    .case-copy p { margin: 0; color: var(--muted); font-size: 13px; }
    .review-score { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 18px; padding: 22px 25px; border-radius: 20px; color: #fff; background: linear-gradient(110deg, #5734c8, #356ce0 65%, #20a4bd); }
    .review-score strong { display: block; font-size: 30px; line-height: 1.1; }
    .review-score span { color: rgba(255,255,255,.86); font-size: 13px; }
    .stars { color: #e8ff88; font-size: 20px; letter-spacing: 3px; }
    .table-wrap { overflow-x: auto; border: 1px solid #e3e6f0; border-radius: 18px; background: #fff; }
    .compare-table { width: 100%; min-width: 690px; border-collapse: collapse; text-align: left; }
    .compare-table th, .compare-table td { padding: 14px 17px; border-bottom: 1px solid #edf0f5; vertical-align: top; }
    .compare-table th { color: #53617a; background: #f6f7fc; font-size: 12px; }
    .compare-table td { color: #48556c; font-size: 13px; }
    .compare-table tr:last-child td { border-bottom: 0; }
    .compare-table td:first-child { color: var(--ink); font-weight: 750; }
    .good { color: #5639bf; font-weight: 750; }
    .reviews { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 13px; margin-top: 27px; }
    .review-card { padding: 19px; border: 1px solid #e5e8f1; border-radius: 17px; background: rgba(255,255,255,.85); }
    .review-card blockquote { margin: 0 0 15px; color: #45516a; font-size: 13px; }
    .review-card footer { color: #737e93; font-size: 12px; }
    .review-card strong { display: block; margin-bottom: 2px; color: #25314a; font-size: 13px; }
    .match-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 24px; align-items: start; }
    .match-aside { padding: 25px; border: 1px solid #e6e1fb; border-radius: 22px; background: linear-gradient(150deg, #f4f0ff, #f0fbff); }
    .match-aside h3 { margin-bottom: 9px; font-size: 20px; }
    .match-aside p { margin-bottom: 18px; color: var(--muted); font-size: 14px; }
    .tag-cloud { display: flex; flex-wrap: wrap; gap: 7px; }
    .form-panel { padding: 25px; border: 1px solid #e3e7f0; border-radius: 22px; background: #fff; box-shadow: 0 12px 34px rgba(45,51,89,.05); }
    .form-panel h3 { margin-bottom: 5px; font-size: 20px; }
    .form-panel > p { margin-bottom: 20px; color: var(--muted); font-size: 13px; }
    .form-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; }
    .field { display: grid; gap: 6px; }
    .field-full { grid-column: 1 / -1; }
    .field label { color: #43506a; font-size: 12px; font-weight: 750; }
    .field input, .field select, .field textarea { width: 100%; border: 1px solid #dfe4ef; border-radius: 11px; outline: none; color: var(--ink); background: #fbfcff; transition: border .2s ease, box-shadow .2s ease; }
    .field input, .field select { min-height: 44px; padding: 0 12px; }
    .field textarea { min-height: 105px; padding: 11px 12px; resize: vertical; }
    .field input:focus, .field select:focus, .field textarea:focus { border-color: #8c77e2; box-shadow: 0 0 0 3px rgba(108,78,214,.12); }
    .form-submit { margin-top: 15px; }
    .faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 14px; }
    .faq-item { border: 1px solid #e4e7ef; border-radius: 15px; background: rgba(255,255,255,.88); }
    .faq-item summary { position: relative; padding: 16px 42px 16px 17px; cursor: pointer; list-style: none; font-size: 14px; font-weight: 750; }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary::after { position: absolute; top: 50%; right: 17px; content: "+"; color: #6544c5; font-size: 20px; transform: translateY(-50%); }
    .faq-item[open] summary::after { content: "−"; }
    .faq-answer { padding: 0 17px 16px; color: var(--muted); font-size: 13px; }
    .resource-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 26px; }
    .resource-panel { padding: 22px; border: 1px solid #e5e8f0; border-radius: 18px; background: #fff; }
    .resource-panel h3 { margin-bottom: 8px; font-size: 17px; }
    .resource-panel p { margin-bottom: 12px; color: var(--muted); font-size: 13px; }
    .article-links { display: grid; gap: 8px; }
    .article-links a { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1px solid #eef0f5; color: #45516a; font-size: 13px; }
    .article-links a:last-child { border-bottom: 0; }
    .article-links a:hover { color: var(--violet); }
    .article-links span { color: #7b879b; font-size: 11px; }
    .contact-band { display: grid; grid-template-columns: 1fr auto; gap: 25px; align-items: center; padding: 27px; border-radius: 22px; color: #fff; background: linear-gradient(110deg, #252454, #4939a6 57%, #247f9a); }
    .contact-band h2 { margin-bottom: 7px; font-size: 27px; }
    .contact-band p { margin-bottom: 0; color: rgba(255,255,255,.8); font-size: 14px; }
    .contact-band .button { color: #283050; background: #eaff92; }
    .footer { margin-top: 48px; padding: 30px 0 26px; border-top: 1px solid #e1e5ef; color: #4e5a72; background: #f2f4fa; }
    .footer-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 30px; }
    .footer-brand p { max-width: 390px; margin: 12px 0 0; color: #68748a; font-size: 13px; }
    .footer-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 9px 18px; max-width: 610px; }
    .footer-links a { color: #4d5a72; font-size: 12px; }
    .footer-links a:hover { color: #5739c0; }
    .footer-bottom { display: flex; justify-content: space-between; gap: 16px; margin-top: 22px; padding-top: 15px; border-top: 1px solid #dfe3ed; color: #6b768b; font-size: 11px; }
    .floating-contact { position: fixed; right: 18px; bottom: 20px; z-index: 15; display: grid; gap: 9px; }
    .float-link { display: flex; min-width: 48px; min-height: 48px; align-items: center; justify-content: center; padding: 0 13px; border: 1px solid #e3e6ef; border-radius: 16px; color: #39455d; background: rgba(255,255,255,.96); box-shadow: 0 8px 24px rgba(42,47,80,.13); font-size: 12px; font-weight: 750; transition: transform .2s ease; }
    .float-link:hover { transform: translateY(-3px); }
    .float-link.primary { border: 0; color: #fff; background: linear-gradient(135deg, #6840d7, #3474e9); }
    .reveal { opacity: 0; transform: translateY(15px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.visible { opacity: 1; transform: translateY(0); }
    @keyframes drift { from { transform: translate3d(0, 0, 0); } to { transform: translate3d(-18px, 13px, 0); } }

    @media (max-width: 1000px) {
      .nav-links a { padding-inline: 7px; font-size: 12px; }
      .nav-actions .button { padding-inline: 14px; }
      .hero-grid { gap: 30px; }
      .industry-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
    }
    @media (max-width: 820px) {
      .nav-row { min-height: 68px; }
      .menu-toggle { display: inline-grid; place-items: center; }
      .nav-links { position: absolute; top: calc(100% + 1px); left: 20px; right: 20px; display: none; align-items: stretch; padding: 9px; border: 1px solid var(--line); border-radius: 16px; background: #fff; box-shadow: var(--shadow); }
      .nav-links.open { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); }
      .nav-links a { padding: 11px 12px; border-radius: 9px; font-size: 13px; }
      .nav-links a:hover { background: #f5f2ff; }
      .nav-actions { margin-left: auto; }
      .nav-actions .button { min-height: 42px; }
      .hero { padding-top: 62px; }
      .hero-grid, .intro-band, .production-layout, .network-box, .match-layout { grid-template-columns: 1fr; }
      .hero-visual { max-width: 560px; }
      .metric-strip { grid-template-columns: repeat(2,1fr); }
      .service-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
      .case-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
      .case-card:first-child { grid-column: 1 / -1; }
      .case-card:first-child .promo-image img { max-height: 360px; object-fit: contain; }
    }
    @media (max-width: 580px) {
      .container { width: min(var(--container), calc(100% - 30px)); }
      .brand-name { font-size: 15px; }
      .brand-mark { width: 35px; height: 35px; }
      .nav-actions .button { display: none; }
      .hero { padding: 48px 0 25px; }
      .hero-grid { gap: 28px; }
      h1 { font-size: clamp(36px, 11vw, 49px); }
      .hero-copy { font-size: 15px; }
      .hero-visual { min-height: 0; padding: 20px; border-radius: 23px; }
      .metric-strip { gap: 8px; padding-bottom: 35px; }
      .metric { padding: 11px 12px; }
      .metric strong { font-size: 14px; }
      .section { padding: 47px 0; }
      .section-head { display: block; margin-bottom: 21px; }
      .section-head .text-link { display: inline-block; margin-top: 12px; }
      .intro-band, .production-card, .network-box, .match-aside, .form-panel { padding: 21px; }
      .intro-points { grid-template-columns: 1fr; }
      .service-grid, .industry-grid, .case-grid, .reviews, .faq-grid, .resource-grid { grid-template-columns: 1fr; }
      .case-card:first-child { grid-column: auto; }
      .workflow { grid-template-columns: repeat(2, minmax(0,1fr)); }
      .network-meta { gap: 7px; }
      .network-meta span { font-size: 11px; }
      .review-score { align-items: flex-start; flex-direction: column; gap: 10px; }
      .form-grid { grid-template-columns: 1fr; }
      .field-full { grid-column: auto; }
      .contact-band { grid-template-columns: 1fr; padding: 23px; }
      .contact-band .button { justify-self: start; }
      .footer-top, .footer-bottom { flex-direction: column; }
      .footer-links { justify-content: flex-start; }
      .floating-contact { right: 10px; bottom: 12px; }
      .float-link { min-width: 43px; min-height: 43px; padding-inline: 10px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }