:root {
      color-scheme: light;
      --ink: #252b35;
      --muted: #606b79;
      --paper: #fffaf5;
      --white: #fff;
      --line: #eadfd8;
      --coral: #e85f55;
      --coral-dark: #b9413a;
      --mint: #d8f4e7;
      --lemon: #ffe7a3;
      --sky: #dcefff;
      --lilac: #eee2ff;
      --shadow: 0 14px 36px rgba(66, 44, 39, .08);
      --width: 1180px;
    }
    * { 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", 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%; height: auto; }
    .container { width: min(var(--width), calc(100% - 40px)); margin-inline: auto; }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 20;
      background: rgba(255, 250, 245, .96);
      border-bottom: 1px solid rgba(234, 223, 216, .9);
      backdrop-filter: blur(12px);
    }
    .nav-row { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
    .brand { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; }
    .brand img { display: block; width: 42px; }
    .brand-name { font-weight: 800; font-size: 18px; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; flex-wrap: wrap; }
    .nav-links a { padding: 10px 9px; border-radius: 8px; color: #505865; font-size: 13px; white-space: nowrap; transition: color .2s, background .2s; }
    .nav-links a:hover { color: var(--coral-dark); background: #fff0ea; }
    .nav-action { padding: 10px 16px; border-radius: 999px; color: #fff; background: var(--ink); font-size: 13px; font-weight: 700; white-space: nowrap; }
    .menu-toggle { display: none; border: 1px solid var(--line); background: #fff; color: var(--ink); border-radius: 8px; padding: 8px 11px; cursor: pointer; }
    .hero { overflow: hidden; position: relative; padding: 72px 0 40px; background: #fff4ed; border-bottom: 1px solid #f1dfd5; }
    .hero::before, .hero::after { content: ""; position: absolute; pointer-events: none; border-radius: 50%; }
    .hero::before { width: 260px; height: 260px; right: -55px; top: -95px; border: 1px solid rgba(232, 95, 85, .18); box-shadow: 0 0 0 24px rgba(232,95,85,.035), 0 0 0 52px rgba(232,95,85,.025); }
    .hero::after { width: 110px; height: 110px; right: 15%; bottom: 25px; background: var(--lemon); opacity: .58; }
    .hero-content { position: relative; z-index: 1; max-width: 780px; }
    .eyebrow { display: inline-flex; align-items: center; gap: 8px; color: var(--coral-dark); font-size: 13px; font-weight: 800; letter-spacing: 0; }
    .eyebrow::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--coral); }
    h1, h2, h3, p { margin-top: 0; }
    h1 { max-width: 760px; margin: 14px 0 17px; font-size: clamp(36px, 5.5vw, 64px); line-height: 1.12; letter-spacing: 0; }
    .hero-copy { max-width: 660px; color: #505865; font-size: 17px; }
    .hero-actions { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-top: 26px; }
    .button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 20px; border: 1px solid transparent; border-radius: 8px; font-weight: 750; transition: transform .18s, box-shadow .18s, background .18s; }
    .button:hover { transform: translateY(-2px); box-shadow: 0 8px 18px rgba(37,43,53,.12); }
    .button-primary { color: #fff; background: var(--coral); }
    .button-primary:hover { background: var(--coral-dark); }
    .button-secondary { color: var(--ink); background: #fff; border-color: #e8d8d0; }
    .hero-note { margin: 12px 0 0; color: var(--muted); font-size: 13px; }
    .hero-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; margin-top: 42px; background: #f0dcd1; border: 1px solid #f0dcd1; border-radius: 10px; overflow: hidden; }
    .hero-stat { padding: 17px 18px; background: rgba(255,255,255,.78); }
    .hero-stat strong { display: block; font-size: 17px; }
    .hero-stat span { color: var(--muted); font-size: 12px; }
    main { background: linear-gradient(180deg, #fffaf5 0%, #fffdfb 65%, #f5fbf7 100%); }
    .section { padding: 68px 0; }
    .section + .section { border-top: 1px solid rgba(234,223,216,.72); }
    .section-head { max-width: 720px; margin-bottom: 28px; }
    .section-head h2 { margin: 7px 0 9px; font-size: 32px; line-height: 1.25; letter-spacing: 0; }
    .section-head p { margin-bottom: 0; color: var(--muted); }
    .intro-layout { display: grid; grid-template-columns: 1.15fr .85fr; gap: 32px; align-items: start; }
    .intro-copy { color: #4e5864; }
    .intro-copy p:last-child { margin-bottom: 0; }
    .intro-aside { padding: 22px; background: var(--mint); border-left: 4px solid #61b78c; border-radius: 0 10px 10px 0; }
    .intro-aside strong { display: block; margin-bottom: 8px; font-size: 18px; }
    .intro-aside p { margin: 0; color: #365a49; }
    .chip-row { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 22px; }
    .chip { padding: 7px 11px; border: 1px solid #eadfd8; border-radius: 999px; background: #fff; color: #525c68; font-size: 13px; }
    .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .service-item { min-height: 154px; padding: 19px; border: 1px solid var(--line); border-radius: 9px; background: #fff; transition: transform .2s, box-shadow .2s; }
    .service-item:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
    .service-item:nth-child(3n+1) { border-top: 3px solid #e99a87; }
    .service-item:nth-child(3n+2) { border-top: 3px solid #79c9a2; }
    .service-item:nth-child(3n) { border-top: 3px solid #e6bd4f; }
    .service-item h3 { margin: 0 0 7px; font-size: 17px; }
    .service-item p { margin: 0; color: var(--muted); font-size: 14px; }
    .workflow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid #e4d8d1; border-bottom: 1px solid #e4d8d1; }
    .step { position: relative; padding: 22px 20px 24px 0; }
    .step + .step { padding-left: 22px; border-left: 1px solid #e4d8d1; }
    .step-number { display: inline-grid; place-items: center; width: 30px; height: 30px; margin-bottom: 12px; border-radius: 50%; background: var(--lemon); font-size: 13px; font-weight: 800; }
    .step h3 { margin: 0 0 6px; font-size: 16px; }
    .step p { margin: 0; color: var(--muted); font-size: 14px; }
    .usecases { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; align-items: center; }
    .usecase-copy p { color: var(--muted); }
    .usecase-list { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
    .usecase-list span { padding: 12px 14px; border-radius: 7px; background: var(--sky); font-weight: 650; font-size: 14px; }
    .usecase-list span:nth-child(4n+2) { background: var(--lemon); }
    .usecase-list span:nth-child(4n+3) { background: var(--mint); }
    .usecase-list span:nth-child(4n) { background: var(--lilac); }
    .image-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 20px; }
    .image-pair figure, .case-image { margin: 0; overflow: hidden; border-radius: 8px; background: #f1eee9; }
    .image-pair img, .case-image img { display: block; width: 100%; height: auto; }
    .image-pair figcaption { padding: 9px 11px; color: var(--muted); font-size: 12px; background: #fff; }
    .case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .case { overflow: hidden; border: 1px solid var(--line); border-radius: 9px; background: #fff; }
    .case-copy { padding: 16px; }
    .case-copy h3 { margin: 0 0 6px; font-size: 17px; }
    .case-copy p { margin: 0; color: var(--muted); font-size: 14px; }
    .compare-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 9px; background: #fff; }
    table { width: 100%; border-collapse: collapse; min-width: 720px; }
    th, td { padding: 14px 16px; text-align: left; border-bottom: 1px solid #eee5e0; vertical-align: top; }
    th { background: #fff0e8; font-size: 14px; }
    td { color: #4f5965; font-size: 14px; }
    tr:last-child td { border-bottom: 0; }
    .rating-band { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 19px 22px; margin-bottom: 16px; border-radius: 9px; background: var(--lemon); }
    .rating-band strong { font-size: 21px; }
    .rating-score { font-weight: 800; font-size: 25px; white-space: nowrap; }
    .rating-score small { font-size: 13px; font-weight: 600; }
    .match-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 34px; align-items: start; }
    .match-copy { padding: 18px 0; }
    .match-copy h2 { font-size: 30px; line-height: 1.25; }
    .match-copy p { color: var(--muted); }
    .form-panel { padding: 22px; border: 1px solid var(--line); border-radius: 9px; background: #fff; box-shadow: 0 9px 24px rgba(66,44,39,.05); }
    .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%; min-height: 43px; padding: 10px 11px; border: 1px solid #d9dfe4; border-radius: 6px; outline: none; color: var(--ink); background: #fff; }
    .field textarea { min-height: 112px; resize: vertical; }
    .field input:focus, .field select:focus, .field textarea:focus { border-color: #65aa87; box-shadow: 0 0 0 3px rgba(101,170,135,.14); }
    .form-submit { margin-top: 14px; border: 0; cursor: pointer; }
    .form-note { margin: 10px 0 0; color: var(--muted); font-size: 12px; }
    .reviews { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .review { padding: 18px; border-left: 3px solid #f1bd55; background: #fff; }
    .review p { margin-bottom: 13px; color: #4e5864; font-size: 14px; }
    .review strong { display: block; font-size: 13px; }
    .review span { color: var(--muted); font-size: 12px; }
    .faq-list { border-top: 1px solid var(--line); }
    details { border-bottom: 1px solid var(--line); }
    summary { position: relative; padding: 17px 38px 17px 0; cursor: pointer; list-style: none; font-weight: 700; }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; position: absolute; right: 4px; top: 13px; color: var(--coral-dark); font-size: 22px; transition: transform .2s; }
    details[open] summary::after { transform: rotate(45deg); }
    details p { max-width: 850px; margin: -3px 0 17px; color: var(--muted); font-size: 14px; }
    .article-list { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; }
    .article-link { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 13px; border: 1px solid var(--line); border-radius: 7px; background: #fff; font-size: 13px; transition: border-color .2s, transform .2s; }
    .article-link:hover { transform: translateY(-2px); border-color: #e69b88; }
    .article-link span:last-child { color: var(--coral-dark); }
    .knowledge-row { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
    .knowledge-block { padding: 20px 0; border-top: 3px solid #7ac59f; }
    .knowledge-block h3 { margin-bottom: 8px; font-size: 19px; }
    .knowledge-block p { margin: 0; color: var(--muted); font-size: 14px; }
    .contact-band { display: grid; grid-template-columns: 1.1fr .9fr; gap: 25px; align-items: center; padding: 26px; border-radius: 10px; background: #e5f5ec; }
    .contact-band h2 { margin-bottom: 8px; font-size: 27px; }
    .contact-band p { margin: 0; color: #476455; }
    .contact-links { display: flex; flex-wrap: wrap; gap: 10px; }
    .contact-links a { padding: 10px 13px; border: 1px solid rgba(54,90,73,.2); border-radius: 7px; background: #fff; color: #294d3b; font-size: 14px; }
    .qr-wrap { width: 150px; padding: 8px; margin-top: 16px; border: 1px solid #c7dfd1; border-radius: 7px; background: #fff; }
    .qr-wrap img { display: block; width: 100%; }
    .footer { padding: 28px 0 22px; background: #fff; border-top: 1px solid var(--line); color: var(--ink); }
    .footer-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 26px; }
    .footer-brand p { max-width: 460px; margin: 10px 0 0; color: var(--muted); font-size: 13px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 8px 16px; max-width: 550px; }
    .footer-links a { color: #505865; font-size: 13px; }
    .footer-links a:hover { color: var(--coral-dark); }
    .footer-bottom { display: flex; justify-content: space-between; gap: 12px; margin-top: 22px; padding-top: 14px; border-top: 1px solid #eee5e0; color: #66707a; font-size: 12px; }
    .floating { position: fixed; right: 18px; bottom: 20px; z-index: 15; display: grid; gap: 8px; }
    .floating a, .floating button { display: grid; place-items: center; width: 44px; height: 44px; border: 1px solid #e5d9d2; border-radius: 50%; background: #fff; color: var(--ink); box-shadow: 0 6px 18px rgba(37,43,53,.12); cursor: pointer; font-size: 12px; font-weight: 750; }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.is-visible { opacity: 1; transform: translateY(0); }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }
    @media (max-width: 1000px) {
      .menu-toggle { display: inline-flex; align-items: center; gap: 7px; }
      .nav-action { margin-left: auto; }
      .nav-links { display: none; position: absolute; top: 73px; left: 0; right: 0; padding: 12px 20px 18px; background: var(--paper); border-bottom: 1px solid var(--line); box-shadow: 0 12px 18px rgba(37,43,53,.07); }
      .nav-links.is-open { display: flex; justify-content: flex-start; }
      .nav-links a { width: 25%; }
    }
    @media (max-width: 720px) {
      .container { width: min(var(--width), calc(100% - 30px)); }
      .nav-row { min-height: 66px; gap: 10px; }
      .brand img { width: 35px; }
      .brand-name { font-size: 16px; }
      .nav-action { padding: 9px 11px; font-size: 12px; }
      .nav-links { top: 65px; }
      .nav-links a { width: 33.333%; padding: 9px 5px; font-size: 12px; }
      .hero { padding: 53px 0 28px; }
      .hero::before { right: -145px; }
      .hero::after { right: 8%; bottom: 75px; width: 72px; height: 72px; }
      h1 { font-size: 39px; }
      .hero-copy { font-size: 15px; }
      .hero-strip { grid-template-columns: 1fr 1fr; margin-top: 30px; }
      .hero-stat { padding: 13px; }
      .section { padding: 49px 0; }
      .section-head h2 { font-size: 27px; }
      .intro-layout, .usecases, .match-layout, .contact-band, .knowledge-row { grid-template-columns: 1fr; gap: 18px; }
      .service-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
      .service-item { min-height: 0; padding: 15px; }
      .workflow { grid-template-columns: 1fr 1fr; }
      .step { padding: 18px 12px 18px 0; }
      .step + .step { padding-left: 14px; }
      .step:nth-child(3) { border-left: 0; padding-left: 0; border-top: 1px solid #e4d8d1; }
      .step:nth-child(4) { border-top: 1px solid #e4d8d1; }
      .usecase-list { gap: 8px; }
      .image-pair { gap: 9px; }
      .case-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
      .case-copy { padding: 12px; }
      .case-copy h3 { font-size: 15px; }
      .case-copy p { font-size: 12px; }
      .rating-band { align-items: flex-start; flex-direction: column; gap: 4px; }
      .form-grid { grid-template-columns: 1fr; }
      .field.full { grid-column: auto; }
      .reviews { grid-template-columns: 1fr 1fr; gap: 10px; }
      .review { padding: 14px; }
      .article-list { grid-template-columns: 1fr 1fr; }
      .footer-top, .footer-bottom { flex-direction: column; }
      .qr-wrap { width: 132px; }
    }
    @media (max-width: 420px) {
      .menu-toggle { padding: 8px; font-size: 12px; }
      .nav-action { font-size: 11px; }
      .service-grid, .case-grid, .reviews { grid-template-columns: 1fr; }
      .hero-actions .button { width: 100%; }
      .image-pair { grid-template-columns: 1fr; }
    }