:root {
      --ink: #201a32;
      --muted: #6c6780;
      --purple: #6d35db;
      --purple-deep: #42128e;
      --violet: #a34bff;
      --pink: #ee4cc9;
      --lavender: #f3efff;
      --surface: #ffffff;
      --line: #e7e0f3;
      --gold: #ffb54a;
      --green: #1f9a75;
      --shadow: 0 18px 48px rgba(69, 28, 134, .12);
      --container: min(1180px, calc(100% - 36px));
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      color: var(--ink);
      background: #fbfaff;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.7;
    }
    a { color: inherit; text-decoration: none; }
    button, input, select, textarea { font: inherit; }
    img { max-width: 100%; height: auto; display: block; }
    .container { width: var(--container); margin: 0 auto; }
    .topbar {
      position: sticky;
      top: 0;
      z-index: 20;
      background: rgba(255,255,255,.94);
      border-bottom: 1px solid rgba(231,224,243,.9);
      backdrop-filter: blur(16px);
    }
    .nav {
      min-height: 76px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }
    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      flex: 0 0 auto;
      font-weight: 800;
      color: var(--purple-deep);
      letter-spacing: 0;
    }
    .ai-page-logo { width: 42px; height: auto; }
    .brand-name { font-size: 18px; white-space: nowrap; }
    .nav-links {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 0;
      flex-wrap: wrap;
    }
    .nav-links a {
      color: #514b63;
      font-size: 13px;
      padding: 8px 9px;
      transition: color .2s ease, background .2s ease;
      border-radius: 7px;
    }
    .nav-links a:hover { color: var(--purple); background: var(--lavender); }
    .nav-cta, .button {
      border: 0;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border-radius: 8px;
      font-weight: 700;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
    }
    .nav-cta {
      color: #fff;
      background: linear-gradient(100deg, var(--purple-deep), var(--pink));
      padding: 11px 17px;
      white-space: nowrap;
      font-size: 13px;
    }
    .button {
      padding: 13px 21px;
      color: #fff;
      background: var(--purple);
      box-shadow: 0 12px 24px rgba(109,53,219,.22);
    }
    .button:hover, .nav-cta:hover { transform: translateY(-2px); box-shadow: 0 15px 28px rgba(109,53,219,.3); }
    .button.secondary {
      color: var(--purple-deep);
      background: #fff;
      border: 1px solid #d9cbed;
      box-shadow: none;
    }
    .menu-toggle { display: none; border: 1px solid var(--line); background: #fff; color: var(--purple-deep); border-radius: 7px; padding: 8px 10px; }

    .hero {
      position: relative;
      overflow: hidden;
      background:
        linear-gradient(135deg, #fff 0%, #f7f0ff 52%, #ffeaf9 100%);
      padding: 92px 0 68px;
      border-bottom: 1px solid #ede6f7;
    }
    .hero::before {
      content: "";
      position: absolute;
      width: 410px;
      height: 410px;
      right: -150px;
      top: -120px;
      border: 1px solid rgba(163,75,255,.22);
      border-radius: 50%;
      box-shadow: 0 0 0 32px rgba(163,75,255,.05), 0 0 0 66px rgba(163,75,255,.03);
      animation: drift 10s ease-in-out infinite alternate;
    }
    .hero::after {
      content: "";
      position: absolute;
      width: 120px;
      height: 120px;
      left: 7%;
      bottom: 25px;
      background: rgba(238,76,201,.12);
      transform: rotate(24deg);
      border-radius: 26px;
    }
    .hero-grid {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: minmax(0, 1.12fr) minmax(310px, .88fr);
      gap: 54px;
      align-items: center;
    }
    .eyebrow, .section-kicker {
      color: var(--purple);
      text-transform: uppercase;
      letter-spacing: 2px;
      font-size: 12px;
      font-weight: 800;
    }
    h1, h2, h3, p { margin-top: 0; }
    h1 {
      max-width: 650px;
      margin-bottom: 22px;
      font-size: clamp(38px, 6vw, 68px);
      line-height: 1.12;
      letter-spacing: 0;
      color: #25113f;
    }
    .hero-copy {
      max-width: 650px;
      color: #5f5872;
      font-size: 18px;
      margin-bottom: 30px;
    }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
    .hero-note { margin-top: 18px; color: #777084; font-size: 13px; }
    .signal-panel {
      background: rgba(255,255,255,.78);
      border: 1px solid rgba(255,255,255,.95);
      box-shadow: var(--shadow);
      border-radius: 18px;
      padding: 25px;
      position: relative;
    }
    .signal-panel::before {
      content: "";
      position: absolute;
      left: 25px;
      top: 25px;
      width: 36px;
      height: 4px;
      background: linear-gradient(90deg, var(--pink), var(--purple));
      border-radius: 10px;
    }
    .signal-panel h2 { margin: 19px 0 14px; font-size: 23px; }
    .signal-panel p { color: var(--muted); font-size: 14px; }
    .signal-list { display: grid; gap: 12px; margin-top: 20px; }
    .signal-item {
      display: flex;
      justify-content: space-between;
      gap: 15px;
      padding: 13px 0;
      border-bottom: 1px solid #eee8f7;
      font-size: 14px;
    }
    .signal-item strong { color: var(--purple-deep); }
    .metric-strip {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 14px;
      margin-top: 45px;
    }
    .metric {
      background: #fff;
      border: 1px solid var(--line);
      padding: 18px;
      border-radius: 12px;
      box-shadow: 0 8px 25px rgba(75,38,126,.06);
    }
    .metric b { display: block; color: var(--purple-deep); font-size: 24px; line-height: 1.2; }
    .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: 35px;
    }
    .section-head h2 { margin: 8px 0 0; font-size: clamp(28px, 4vw, 42px); line-height: 1.2; }
    .section-head p { max-width: 520px; color: var(--muted); margin: 0; }
    .soft-band { background: linear-gradient(180deg, #fbfaff, #f5f0ff); }
    .intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 25px; align-items: stretch; }
    .intro-copy, .intro-points {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 14px;
      padding: 29px;
    }
    .intro-copy { border-left: 5px solid var(--pink); }
    .intro-copy p { color: var(--muted); }
    .point-list { display: grid; gap: 17px; }
    .point { display: flex; gap: 13px; }
    .point-mark {
      flex: 0 0 28px;
      height: 28px;
      display: grid;
      place-items: center;
      color: #fff;
      background: linear-gradient(135deg, var(--purple), var(--pink));
      border-radius: 8px;
      font-size: 13px;
      font-weight: 800;
    }
    .point strong { display: block; margin-bottom: 3px; }
    .point span { color: var(--muted); font-size: 14px; }

    .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .service-card {
      padding: 23px;
      border: 1px solid var(--line);
      border-radius: 12px;
      background: #fff;
      transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
    }
    .service-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: #c9b1ee; }
    .service-icon {
      width: 42px;
      height: 42px;
      display: grid;
      place-items: center;
      color: #fff;
      background: linear-gradient(140deg, var(--purple-deep), var(--pink));
      border-radius: 10px;
      font-weight: 800;
      margin-bottom: 17px;
    }
    .service-card h3 { margin-bottom: 7px; font-size: 18px; }
    .service-card p { color: var(--muted); font-size: 14px; margin-bottom: 0; }

    .workflow {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 0;
      border: 1px solid var(--line);
      background: #fff;
      border-radius: 14px;
      overflow: hidden;
    }
    .step { padding: 26px 20px; position: relative; border-right: 1px solid var(--line); }
    .step:last-child { border-right: 0; }
    .step-number { color: var(--pink); font-size: 30px; font-weight: 800; }
    .step h3 { font-size: 17px; margin: 8px 0; }
    .step p { color: var(--muted); font-size: 13px; margin: 0; }

    .solution-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
    .solution {
      border-top: 3px solid var(--purple);
      background: #fff;
      border-radius: 10px;
      padding: 20px;
      border-left: 1px solid var(--line);
      border-right: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
    }
    .solution h3 { margin-bottom: 7px; font-size: 17px; }
    .solution p { color: var(--muted); font-size: 13px; margin-bottom: 0; }

    .network-layout { display: grid; grid-template-columns: 1.15fr .85fr; gap: 28px; align-items: start; }
    .tag-cloud, .network-aside {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 14px;
      padding: 28px;
    }
    .tags { display: flex; flex-wrap: wrap; gap: 10px; }
    .tag {
      color: #543293;
      background: #f1eaff;
      padding: 8px 12px;
      border-radius: 7px;
      font-size: 13px;
      border: 1px solid #e0d1fa;
    }
    .network-aside h3 { margin-bottom: 12px; }
    .network-aside p { color: var(--muted); font-size: 14px; }
    .network-list { display: grid; gap: 9px; color: #5d566f; font-size: 14px; }
    .network-list span::before { content: "•"; color: var(--pink); margin-right: 8px; }

    .case-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 20px; }
    .case-main {
      border-radius: 15px;
      min-height: 260px;
      padding: 29px;
      display: flex;
      flex-direction: column;
      justify-content: end;
      color: #fff;
      background:
        linear-gradient(140deg, rgba(47,14,88,.92), rgba(109,53,219,.78)),
        url("/media-library/jxdt/manju.jpg") center / cover;
    }
    .case-main h3 { font-size: 27px; margin-bottom: 9px; }
    .case-main p { color: #eee6ff; margin: 0; }
    .case-side { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .case-card { padding: 22px; border: 1px solid var(--line); background: #fff; border-radius: 12px; }
    .case-card h3 { font-size: 17px; margin-bottom: 8px; }
    .case-card p { color: var(--muted); margin: 0; font-size: 13px; }

    .review-layout { display: grid; grid-template-columns: .72fr 1.28fr; gap: 28px; align-items: start; }
    .score-box {
      padding: 29px;
      color: #fff;
      border-radius: 15px;
      background: linear-gradient(145deg, #35105e, #762bdd 65%, #d542b3);
      box-shadow: var(--shadow);
    }
    .score-box h3 { font-size: 22px; margin-bottom: 24px; }
    .score { font-size: 62px; font-weight: 800; line-height: 1; }
    .stars { color: var(--gold); font-size: 24px; letter-spacing: 4px; margin: 13px 0; }
    .score-box p { color: #f1e8ff; font-size: 13px; }
    .compare-wrap { overflow-x: auto; background: #fff; border: 1px solid var(--line); border-radius: 14px; }
    table { width: 100%; min-width: 650px; border-collapse: collapse; }
    th, td { text-align: left; padding: 16px 18px; border-bottom: 1px solid var(--line); font-size: 14px; }
    th { color: var(--purple-deep); background: #f7f2ff; }
    td:first-child { font-weight: 700; color: #41384f; }
    td:last-child { color: var(--green); font-weight: 700; }

    .price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .price-card { padding: 25px; border: 1px solid var(--line); background: #fff; border-radius: 12px; }
    .price-card.highlight { border: 2px solid var(--purple); transform: translateY(-5px); }
    .price-card h3 { margin-bottom: 8px; }
    .price-label { color: var(--purple); font-size: 13px; font-weight: 700; }
    .price-card p { color: var(--muted); font-size: 14px; }
    .price-card ul { padding-left: 18px; margin-bottom: 0; color: #5f5872; font-size: 13px; }

    .comment-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .comment-card { padding: 23px; border: 1px solid var(--line); background: #fff; border-radius: 12px; }
    .comment-card p { color: #58516a; font-size: 14px; margin-bottom: 18px; }
    .comment-card strong { display: block; color: var(--purple-deep); font-size: 14px; }
    .comment-card span { color: #8b8499; font-size: 12px; }

    .media-layout { display: grid; grid-template-columns: 1.05fr .95fr; gap: 22px; }
    .media-panel { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 22px; }
    .media-panel h3 { margin-bottom: 15px; }
    .media-images { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .media-images figure { margin: 0; border-radius: 9px; overflow: hidden; background: #f2edf9; }
    .media-images img { width: 100%; aspect-ratio: 1.45; object-fit: cover; }
    .media-images figure:last-child { grid-column: span 2; }
    .article-list { display: grid; gap: 12px; }
    .article-item { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 13px 0; border-bottom: 1px solid var(--line); }
    .article-item span { color: #554d67; font-size: 14px; }
    .article-item a { color: var(--purple); font-size: 12px; white-space: nowrap; }

    .faq-list { display: grid; gap: 10px; max-width: 920px; }
    details { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 0 20px; }
    summary { cursor: pointer; list-style: none; padding: 18px 0; font-weight: 700; color: #332943; }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; float: right; color: var(--purple); font-size: 22px; line-height: 1; }
    details[open] summary::after { content: "−"; }
    details p { color: var(--muted); font-size: 14px; padding: 0 28px 18px 0; margin: 0; }

    .form-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 28px; align-items: start; }
    .contact-copy { padding: 10px 0; }
    .contact-copy h2 { font-size: 38px; line-height: 1.2; }
    .contact-copy p { color: var(--muted); }
    .contact-list { display: grid; gap: 12px; margin-top: 25px; color: #544d65; font-size: 14px; }
    .contact-list b { color: var(--purple-deep); }
    form { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 27px; }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
    .field { display: grid; gap: 6px; }
    .field.full { grid-column: span 2; }
    label { font-size: 13px; font-weight: 700; color: #443a54; }
    input, select, textarea {
      width: 100%;
      border: 1px solid #ddd3ea;
      border-radius: 7px;
      padding: 12px 13px;
      color: var(--ink);
      background: #fdfcff;
      outline: none;
    }
    input:focus, select:focus, textarea:focus { border-color: var(--purple); box-shadow: 0 0 0 3px rgba(109,53,219,.1); }
    textarea { min-height: 128px; resize: vertical; }
    .form-submit { margin-top: 18px; width: 100%; }

    .footer {
      color: #eee8f8;
      background: #26143c;
      padding: 48px 0 22px;
    }
    .footer-grid { display: grid; grid-template-columns: 1.1fr .8fr 1fr; gap: 28px; }
    .footer h2, .footer h3 { color: #fff; margin-bottom: 12px; }
    .footer p, .footer li, .footer a { color: #c9bdd9; font-size: 13px; }
    .footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 7px; }
    .footer a:hover { color: #fff; }
    .footer-bottom { display: flex; justify-content: space-between; gap: 20px; border-top: 1px solid rgba(255,255,255,.13); margin-top: 28px; padding-top: 17px; color: #a99bbd; font-size: 12px; }
    .qr { width: 112px; border-radius: 7px; margin-top: 10px; }
    .float-actions { position: fixed; right: 18px; bottom: 20px; z-index: 15; display: grid; gap: 9px; }
    .float-actions a, .float-actions button {
      width: 45px;
      height: 45px;
      display: grid;
      place-items: center;
      border: 0;
      border-radius: 50%;
      color: #fff;
      background: var(--purple);
      box-shadow: 0 10px 25px rgba(65,18,142,.25);
      cursor: pointer;
      font-weight: 800;
    }
    .float-actions a:first-child { background: var(--pink); }
    .reveal { opacity: 0; transform: translateY(18px); transition: opacity .65s ease, transform .65s ease; }
    .reveal.visible { opacity: 1; transform: translateY(0); }
    @keyframes drift { from { transform: translate(0,0) rotate(0); } to { transform: translate(-25px,25px) rotate(12deg); } }

    @media (max-width: 980px) {
      .nav-links { display: none; position: absolute; left: 18px; right: 18px; top: 70px; padding: 12px; background: #fff; border: 1px solid var(--line); border-radius: 10px; box-shadow: var(--shadow); }
      .nav-links.open { display: grid; grid-template-columns: repeat(2, 1fr); }
      .nav-links a { padding: 10px; }
      .menu-toggle { display: inline-flex; }
      .nav-cta { display: none; }
      .hero-grid, .network-layout, .case-grid, .review-layout, .media-layout, .form-layout { grid-template-columns: 1fr; }
      .workflow { grid-template-columns: repeat(3, 1fr); }
      .step:nth-child(3) { border-right: 0; }
      .step:nth-child(-n+3) { border-bottom: 1px solid var(--line); }
      .solution-grid { grid-template-columns: repeat(2, 1fr); }
      .metric-strip { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 640px) {
      :root { --container: min(100% - 28px, 1180px); }
      .nav { min-height: 68px; }
      .brand-name { font-size: 16px; }
      .hero { padding: 65px 0 48px; }
      h1 { font-size: 39px; }
      .hero-copy { font-size: 16px; }
      section { padding: 62px 0; }
      .section-head { display: block; }
      .section-head p { margin-top: 15px; }
      .intro-grid, .service-grid, .comment-grid, .price-grid, .solution-grid { grid-template-columns: 1fr; }
      .workflow { grid-template-columns: 1fr; }
      .step, .step:nth-child(3) { border-right: 0; border-bottom: 1px solid var(--line); }
      .step:last-child { border-bottom: 0; }
      .case-side { grid-template-columns: 1fr; }
      .form-grid { grid-template-columns: 1fr; }
      .field.full { grid-column: auto; }
      .footer-grid { grid-template-columns: 1fr; }
      .footer-bottom { display: block; }
      .footer-bottom span { display: block; margin-top: 7px; }
      .nav-links.open { grid-template-columns: 1fr; }
    }