:root {
      --red: #d7193f;
      --red-dark: #a90f31;
      --red-soft: #fff0f3;
      --ink: #201c25;
      --muted: #6d6670;
      --paper: #fffdfc;
      --line: #eadfe2;
      --navy: #17263d;
      --gold: #d7a544;
      --shadow: 0 16px 42px rgba(74, 24, 40, .09);
      --container: 1180px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      background: var(--paper);
      color: var(--ink);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
      line-height: 1.7;
    }
    a { color: inherit; text-decoration: none; }
    img { max-width: 100%; height: auto; display: block; }
    .container { width: min(var(--container), calc(100% - 40px)); margin: 0 auto; }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(255, 253, 252, .96);
      border-bottom: 1px solid rgba(234, 223, 226, .9);
      backdrop-filter: blur(14px);
    }
    .nav-wrap {
      min-height: 76px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }
    .brand { display: inline-flex; align-items: center; flex: 0 0 auto; }
    .ai-page-logo { width: 142px; max-height: 42px; object-fit: contain; }
    .nav-links {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 0;
      flex-wrap: nowrap;
      min-width: 0;
    }
    .nav-links a {
      color: #49424a;
      font-size: 13px;
      padding: 8px 10px;
      white-space: nowrap;
      transition: color .2s ease, background .2s ease;
    }
    .nav-links a:hover, .nav-links a:focus { color: var(--red); background: var(--red-soft); }
    .nav-cta, .button {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border: 0;
      cursor: pointer;
      font-weight: 700;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
    }
    .nav-cta {
      margin-left: 12px;
      padding: 10px 17px;
      color: #fff;
      background: var(--red);
      font-size: 13px;
    }
    .nav-cta:hover, .button:hover { transform: translateY(-2px); box-shadow: 0 10px 22px rgba(215, 25, 63, .2); }
    .menu-toggle { display: none; background: none; border: 0; color: var(--ink); font-size: 24px; cursor: pointer; }
    .hero {
      position: relative;
      overflow: hidden;
      background: var(--red);
      color: #fff;
      padding: 92px 0 84px;
    }
    .hero::before, .hero::after {
      content: "";
      position: absolute;
      pointer-events: none;
      border: 1px solid rgba(255,255,255,.23);
      transform: rotate(18deg);
    }
    .hero::before { width: 310px; height: 310px; right: 7%; top: -120px; }
    .hero::after { width: 210px; height: 210px; left: -100px; bottom: -90px; border-radius: 50%; }
    .hero-grid {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: minmax(0, 1.15fr) minmax(300px, .85fr);
      align-items: center;
      gap: 64px;
    }
    .eyebrow, .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      font-size: 12px;
      font-weight: 800;
      letter-spacing: 1.6px;
      text-transform: uppercase;
    }
    .eyebrow::before, .section-kicker::before {
      content: "";
      width: 28px;
      height: 2px;
      background: currentColor;
    }
    .hero h1 {
      max-width: 650px;
      margin: 18px 0 18px;
      font-size: clamp(38px, 5vw, 68px);
      line-height: 1.13;
      letter-spacing: 0;
    }
    .hero-copy {
      max-width: 650px;
      margin: 0;
      color: rgba(255,255,255,.88);
      font-size: 18px;
    }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
    .button { min-height: 46px; padding: 0 22px; font-size: 14px; }
    .button-primary { background: #fff; color: var(--red-dark); }
    .button-outline { border: 1px solid rgba(255,255,255,.56); color: #fff; background: transparent; }
    .hero-panel {
      border-left: 1px solid rgba(255,255,255,.35);
      padding-left: 30px;
    }
    .hero-panel h2 { margin: 0 0 20px; font-size: 25px; line-height: 1.3; }
    .hero-points { display: grid; gap: 14px; margin: 0; padding: 0; list-style: none; }
    .hero-points li { display: flex; align-items: flex-start; gap: 12px; color: rgba(255,255,255,.9); }
    .hero-points b { color: #fff; }
    .hero-points span {
      display: inline-grid;
      place-items: center;
      flex: 0 0 24px;
      width: 24px;
      height: 24px;
      border: 1px solid rgba(255,255,255,.55);
      font-size: 12px;
    }
    .metrics {
      position: relative;
      z-index: 2;
      margin-top: -1px;
      background: #fff;
      border-bottom: 1px solid var(--line);
    }
    .metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
    .metric { padding: 25px 20px; border-right: 1px solid var(--line); }
    .metric:last-child { border-right: 0; }
    .metric strong { display: block; color: var(--red); font-size: 29px; line-height: 1.15; }
    .metric span { color: var(--muted); font-size: 13px; }
    section { padding: 88px 0; }
    .section-head { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 34px; }
    .section-kicker { color: var(--red); }
    h2 { margin: 10px 0 8px; color: var(--ink); font-size: clamp(28px, 4vw, 45px); line-height: 1.2; }
    .section-intro { max-width: 650px; margin: 0; color: var(--muted); }
    .about { background: #fff7f5; }
    .about-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 70px; align-items: start; }
    .about-text p { margin: 0 0 17px; color: #514a51; }
    .signature-line { display: inline-flex; align-items: center; gap: 14px; margin-top: 12px; color: var(--red); font-weight: 700; }
    .signature-line::before { content: ""; width: 46px; height: 2px; background: var(--red); }
    .capability-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
    .capability { background: #fff; padding: 24px; }
    .capability b { display: block; margin-bottom: 7px; font-size: 17px; }
    .capability p { margin: 0; color: var(--muted); font-size: 14px; }
    .service-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
    .service-card {
      min-height: 220px;
      padding: 25px 21px;
      border: 1px solid var(--line);
      background: #fff;
      box-shadow: 0 4px 0 rgba(215,25,63,.04);
      transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
    }
    .service-card:hover { transform: translateY(-5px); border-color: #ef9cad; box-shadow: var(--shadow); }
    .service-icon { color: var(--red); font-size: 26px; font-weight: 800; }
    .service-card h3 { margin: 16px 0 8px; font-size: 18px; }
    .service-card p { margin: 0; color: var(--muted); font-size: 14px; }
    .service-card a { display: inline-block; margin-top: 16px; color: var(--red); font-size: 13px; font-weight: 700; }
    .production { background: var(--navy); color: #fff; }
    .production h2, .production .section-intro { color: #fff; }
    .production .section-intro { color: rgba(255,255,255,.72); }
    .process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid rgba(255,255,255,.25); }
    .process-step { position: relative; padding: 29px 25px 15px 0; border-right: 1px solid rgba(255,255,255,.2); margin-right: 25px; }
    .process-step:last-child { border-right: 0; margin-right: 0; }
    .process-number { color: #f39cad; font-size: 14px; font-weight: 800; }
    .process-step h3 { margin: 19px 0 8px; font-size: 19px; }
    .process-step p { margin: 0; color: rgba(255,255,255,.68); font-size: 14px; }
    .industry { background: #fff; }
    .industry-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .industry-card { padding: 24px; border: 1px solid var(--line); background: #fffdfc; }
    .industry-card h3 { margin: 0 0 8px; font-size: 19px; }
    .industry-card p { margin: 0; color: var(--muted); font-size: 14px; }
    .tag-list, .model-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
    .tag, .model {
      display: inline-block;
      padding: 5px 10px;
      border: 1px solid #efc7cf;
      color: var(--red-dark);
      background: var(--red-soft);
      font-size: 12px;
    }
    .network { background: #faf7f7; }
    .network-layout { display: grid; grid-template-columns: 1fr .86fr; gap: 30px; align-items: stretch; }
    .network-box { padding: 31px; background: #fff; border: 1px solid var(--line); }
    .network-box h3 { margin-top: 0; font-size: 22px; }
    .network-box p { color: var(--muted); }
    .model { color: var(--navy); border-color: #cdd6e4; background: #f1f5fa; }
    .offer-list { display: grid; gap: 14px; margin-top: 20px; }
    .offer { display: flex; gap: 13px; align-items: flex-start; }
    .offer b { color: var(--red); }
    .offer span { color: #5e5860; font-size: 14px; }
    .cases { background: #fff; }
    .case-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
    .case-card { border: 1px solid var(--line); overflow: hidden; background: #fff; }
    .case-media { aspect-ratio: 4 / 3; overflow: hidden; background: #f5e6e8; }
    .case-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
    .case-card:hover .case-media img { transform: scale(1.04); }
    .case-body { padding: 18px; }
    .case-body h3 { margin: 0 0 6px; font-size: 17px; }
    .case-body p { margin: 0; color: var(--muted); font-size: 13px; }
    .comparison { background: #fff7f5; }
    .review-score { display: flex; align-items: center; gap: 24px; padding: 24px; margin-bottom: 22px; background: var(--red); color: #fff; }
    .review-score strong { font-size: 42px; line-height: 1; }
    .stars { color: #ffe1a5; letter-spacing: 3px; font-size: 21px; }
    .review-score span { color: rgba(255,255,255,.8); font-size: 13px; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); background: #fff; }
    table { width: 100%; min-width: 760px; border-collapse: collapse; text-align: left; }
    th, td { padding: 17px 18px; border-bottom: 1px solid var(--line); font-size: 14px; vertical-align: top; }
    th { color: var(--ink); background: #fcecef; }
    td:first-child { font-weight: 700; color: var(--ink); }
    td strong { color: var(--red); }
    .match { background: #fff; }
    .match-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 55px; align-items: start; }
    .match-notes { padding-top: 12px; }
    .match-notes h2 { max-width: 470px; }
    .check-list { margin: 24px 0 0; padding: 0; list-style: none; display: grid; gap: 12px; }
    .check-list li { display: flex; gap: 10px; color: #5e5860; font-size: 14px; }
    .check-list li::before { content: "✓"; color: var(--red); font-weight: 800; }
    .form-box { padding: 30px; border-top: 4px solid var(--red); background: #fff8f7; box-shadow: var(--shadow); }
    .form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .field { display: grid; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    label { color: #514a51; font-size: 13px; font-weight: 700; }
    input, select, textarea { width: 100%; border: 1px solid #ddcfd3; padding: 12px 13px; background: #fff; color: var(--ink); font: inherit; outline: 0; }
    input:focus, select:focus, textarea:focus { border-color: var(--red); box-shadow: 0 0 0 3px rgba(215,25,63,.1); }
    textarea { min-height: 128px; resize: vertical; }
    .form-submit { margin-top: 18px; background: var(--red); color: #fff; }
    .pricing { background: var(--navy); color: #fff; }
    .pricing h2, .pricing .section-intro { color: #fff; }
    .pricing .section-intro { color: rgba(255,255,255,.72); }
    .price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .price-card { padding: 25px; border: 1px solid rgba(255,255,255,.2); background: rgba(255,255,255,.06); }
    .price-card.featured { background: var(--red); border-color: var(--red); }
    .price-card h3 { margin: 0 0 10px; }
    .price-card p { min-height: 70px; margin: 0; color: rgba(255,255,255,.76); font-size: 14px; }
    .price-line { display: flex; justify-content: space-between; gap: 16px; padding-top: 18px; margin-top: 18px; border-top: 1px solid rgba(255,255,255,.2); color: #fff; font-weight: 700; }
    .testimonials { background: #fff; }
    .testimonial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .testimonial { padding: 23px; border: 1px solid var(--line); background: #fff; }
    .testimonial p { margin: 0 0 20px; color: #514a51; font-size: 14px; }
    .testimonial footer { color: var(--red-dark); font-size: 13px; font-weight: 700; }
    .faq { background: #faf7f7; }
    .faq-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 11px 18px; }
    details { border: 1px solid var(--line); background: #fff; }
    summary { position: relative; cursor: pointer; list-style: none; padding: 17px 45px 17px 18px; font-weight: 700; }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; position: absolute; right: 18px; color: var(--red); font-size: 21px; line-height: 1; }
    details[open] summary::after { content: "−"; }
    details p { margin: 0; padding: 0 18px 18px; color: var(--muted); font-size: 14px; }
    .articles { background: #fff; }
    .article-layout { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; }
    .article-list { display: grid; gap: 0; border-top: 1px solid var(--line); }
    .article { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 17px 0; border-bottom: 1px solid var(--line); }
    .article b { display: block; margin-bottom: 4px; font-size: 15px; }
    .article span { color: var(--muted); font-size: 13px; }
    .article em { color: var(--red); font-size: 12px; font-style: normal; white-space: nowrap; }
    .knowledge { padding: 27px; background: var(--red-soft); border-left: 4px solid var(--red); }
    .knowledge h3 { margin-top: 0; }
    .knowledge p { color: #64565b; font-size: 14px; }
    .contact { background: #fff7f5; }
    .contact-layout { display: grid; grid-template-columns: 1fr .95fr; gap: 40px; }
    .contact-list { display: grid; gap: 14px; margin-top: 25px; }
    .contact-item { display: flex; gap: 15px; align-items: flex-start; }
    .contact-item strong { display: block; margin-bottom: 2px; }
    .contact-item span { color: var(--muted); font-size: 14px; }
    .qr-box { display: flex; align-items: center; gap: 25px; padding: 23px; border: 1px solid var(--line); background: #fff; }
    .qr-box img { width: 120px; height: 120px; object-fit: contain; }
    .partner { background: #fff; }
    .partner-layout { display: flex; align-items: center; justify-content: space-between; gap: 35px; padding: 34px; border: 1px solid #edc5cd; background: var(--red-soft); }
    .partner-layout h2 { margin-top: 0; font-size: 31px; }
    .partner-layout p { max-width: 640px; margin-bottom: 0; color: #63565b; }
    .partner .button { background: var(--red); color: #fff; flex: 0 0 auto; }
    .site-footer { padding: 42px 0 25px; background: #17202e; color: #fff; }
    .footer-grid { display: grid; grid-template-columns: 1.2fr .8fr .8fr; gap: 35px; padding-bottom: 32px; border-bottom: 1px solid rgba(255,255,255,.16); }
    .site-footer h3 { margin: 0 0 13px; font-size: 16px; }
    .site-footer p, .site-footer a { color: rgba(255,255,255,.68); font-size: 13px; }
    .site-footer p { max-width: 360px; }
    .footer-links { display: grid; gap: 6px; }
    .footer-links a:hover { color: #fff; }
    .copyright { display: flex; justify-content: space-between; gap: 20px; padding-top: 20px; color: rgba(255,255,255,.5); font-size: 12px; }
    .floating {
      position: fixed;
      right: 20px;
      bottom: 22px;
      z-index: 40;
      display: flex;
      align-items: center;
      gap: 9px;
      padding: 12px 16px;
      background: var(--red);
      color: #fff;
      box-shadow: 0 12px 27px rgba(110, 15, 39, .28);
      font-size: 13px;
      font-weight: 700;
    }
    .reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
    .reveal.visible { opacity: 1; transform: none; }
    @media (max-width: 1050px) {
      .nav-links a { padding: 8px 6px; font-size: 12px; }
      .nav-cta { margin-left: 5px; padding: 9px 11px; }
      .service-grid, .case-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 780px) {
      .container { width: min(var(--container), calc(100% - 28px)); }
      .nav-wrap { min-height: 66px; }
      .menu-toggle { display: block; }
      .nav-links {
        display: none;
        position: absolute;
        top: 66px;
        left: 0;
        right: 0;
        padding: 10px 14px 16px;
        background: #fffdfc;
        border-bottom: 1px solid var(--line);
        box-shadow: 0 10px 22px rgba(34,20,25,.08);
        flex-direction: column;
        align-items: stretch;
      }
      .nav-links.open { display: flex; }
      .nav-links a { padding: 10px 9px; }
      .nav-cta { margin: 7px 0 0; text-align: center; }
      .hero { padding: 67px 0 60px; }
      .hero-grid, .about-layout, .network-layout, .match-layout, .article-layout, .contact-layout { grid-template-columns: 1fr; gap: 34px; }
      .hero-panel { border-left: 0; border-top: 1px solid rgba(255,255,255,.35); padding: 26px 0 0; }
      .metric-grid { grid-template-columns: repeat(2, 1fr); }
      .metric:nth-child(2) { border-right: 0; }
      .metric:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
      section { padding: 64px 0; }
      .section-head { display: block; }
      .section-intro { margin-top: 12px; }
      .process-grid { grid-template-columns: repeat(2, 1fr); border-top: 0; gap: 20px; }
      .process-step { border-right: 0; border-top: 1px solid rgba(255,255,255,.25); margin: 0; padding-top: 20px; }
      .industry-grid, .testimonial-grid, .faq-list, .price-grid { grid-template-columns: 1fr; }
      .form-grid { grid-template-columns: 1fr; }
      .field.full { grid-column: auto; }
      .partner-layout { display: block; padding: 25px; }
      .partner .button { margin-top: 22px; }
      .footer-grid { grid-template-columns: 1fr; gap: 22px; }
      .copyright { display: block; }
      .copyright span { display: block; margin-top: 8px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
    }