:root {
      color-scheme: light;
      --ink: #173b3b;
      --muted: #526c6b;
      --teal: #087e78;
      --teal-dark: #075b58;
      --mint: #dff4ef;
      --lime: #c8ec77;
      --paper: #f6fbf9;
      --line: #d7e9e4;
      --white: #fff;
      --coral: #e8775c;
      --container: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 86px; }
    body {
      margin: 0;
      color: var(--ink);
      background: linear-gradient(180deg, #effaf7 0, #f8fbf9 520px, #edf7f4 100%);
      font-family: Arial, "Noto Sans SC", "Microsoft YaHei", sans-serif;
      line-height: 1.65;
    }
    a { color: inherit; }
    button, input, select, textarea { font: inherit; }
    button, a { -webkit-tap-highlight-color: transparent; }
    .container { width: min(var(--container), calc(100% - 40px)); margin-inline: auto; }
    .site-header { position: sticky; top: 0; z-index: 20; background: rgba(247, 252, 250, .96); border-bottom: 1px solid var(--line); backdrop-filter: blur(12px); }
    .nav-row { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
    .brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; flex: 0 0 auto; font-weight: 800; font-size: 19px; }
    .brand img { display: block; width: 40px; height: 40px; object-fit: contain; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; flex-wrap: wrap; }
    .nav-links a { text-decoration: none; color: #355957; font-size: 13px; padding: 9px 8px; border-radius: 4px; transition: color .2s, background .2s; }
    .nav-links a:hover, .nav-links a:focus-visible { color: var(--teal-dark); background: #e4f4ef; }
    .nav-links .nav-cta { margin-left: 7px; padding: 10px 15px; color: #fff; background: var(--teal); font-weight: 700; }
    .nav-toggle { display: none; color: var(--ink); background: transparent; border: 1px solid var(--line); border-radius: 5px; padding: 8px 11px; cursor: pointer; }
    .hero { position: relative; overflow: hidden; border-bottom: 1px solid #d8ebe6; background: linear-gradient(125deg, #e3f6f1 0%, #f4fbf8 58%, #ecf8db 100%); }
    .hero::before, .hero::after { position: absolute; content: ""; pointer-events: none; }
    .hero::before { width: 430px; height: 430px; right: -130px; top: -210px; border: 1px solid rgba(8,126,120,.18); border-radius: 50%; box-shadow: 0 0 0 35px rgba(8,126,120,.035), 0 0 0 75px rgba(8,126,120,.025); }
    .hero::after { width: 190px; height: 190px; right: 16%; bottom: -140px; border: 1px solid rgba(232,119,92,.24); transform: rotate(45deg); }
    .hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(280px, .75fr); gap: 46px; align-items: center; padding-block: 72px 56px; }
    .eyebrow { display: inline-flex; align-items: center; gap: 9px; margin: 0 0 17px; color: var(--teal-dark); font-size: 13px; font-weight: 800; letter-spacing: 0; }
    .eyebrow::before { content: ""; display: block; width: 25px; height: 2px; background: var(--coral); }
    h1 { max-width: 680px; margin: 0; font-size: clamp(38px, 6vw, 66px); line-height: 1.1; letter-spacing: 0; }
    .hero-copy { max-width: 650px; margin: 22px 0 27px; color: #42615e; font-size: 17px; }
    .actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
    .button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 11px 18px; border: 1px solid transparent; border-radius: 4px; color: #fff; background: var(--teal); text-decoration: none; font-weight: 750; transition: transform .2s, box-shadow .2s, background .2s; }
    .button:hover { background: var(--teal-dark); box-shadow: 0 8px 18px rgba(7,91,88,.17); transform: translateY(-2px); }
    .button.secondary { color: var(--teal-dark); background: rgba(255,255,255,.55); border-color: #9ccac0; }
    .button.secondary:hover { background: #fff; }
    .hero-proof { position: relative; padding: 26px; border: 1px solid rgba(8,126,120,.2); background: rgba(255,255,255,.72); box-shadow: 0 18px 45px rgba(35,94,82,.08); }
    .proof-top { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-bottom: 16px; border-bottom: 1px solid var(--line); }
    .proof-top strong { font-size: 16px; }
    .status-dot { display: inline-flex; align-items: center; gap: 7px; color: #52716a; font-size: 12px; }
    .status-dot::before { content: ""; width: 8px; height: 8px; background: #5bab76; border-radius: 50%; }
    .proof-metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 0; margin-top: 4px; }
    .proof-metric { padding: 18px 10px 14px 0; }
    .proof-metric + .proof-metric { padding-left: 18px; border-left: 1px solid var(--line); }
    .proof-metric b { display: block; color: var(--teal-dark); font-size: 28px; line-height: 1.2; }
    .proof-metric span { color: var(--muted); font-size: 12px; }
    .proof-note { margin: 11px 0 0; color: var(--muted); font-size: 12px; }
    .ticker { border-bottom: 1px solid var(--line); background: #fff; }
    .ticker-row { display: flex; align-items: center; gap: 17px; padding-block: 14px; overflow: hidden; }
    .ticker-label { flex: 0 0 auto; color: var(--teal-dark); font-size: 12px; font-weight: 800; }
    .ticker-list { display: flex; flex-wrap: wrap; gap: 8px 18px; color: #496967; font-size: 12px; }
    .ticker-list span::before { content: "·"; color: var(--coral); font-weight: 900; margin-right: 7px; }
    section { padding-block: 66px; }
    .section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 30px; }
    .section-head h2 { margin: 0; font-size: clamp(27px, 3.4vw, 38px); line-height: 1.2; letter-spacing: 0; }
    .section-head p { max-width: 540px; margin: 0; color: var(--muted); font-size: 14px; }
    .kicker { display: block; margin-bottom: 9px; color: var(--teal); font-size: 12px; font-weight: 800; }
    .about-layout { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: start; }
    .about-text { max-width: 650px; color: #47615f; }
    .about-text p { margin: 0 0 15px; }
    .about-points { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
    .about-point { padding: 17px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(255,255,255,.48); }
    .about-point b { display: block; margin-bottom: 4px; font-size: 15px; }
    .about-point span { color: var(--muted); font-size: 12px; }
    .services-band { background: #eaf6f2; border-block: 1px solid #d9ebe5; }
    .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
    .service-item { min-height: 155px; padding: 20px; background: rgba(255,255,255,.76); border: 1px solid #d5e9e2; transition: transform .2s, box-shadow .2s; }
    .service-item:hover { transform: translateY(-3px); box-shadow: 0 12px 24px rgba(34,87,76,.08); }
    .service-item .index { color: var(--coral); font-size: 12px; font-weight: 800; }
    .service-item h3 { margin: 8px 0 7px; font-size: 17px; }
    .service-item p { margin: 0; color: var(--muted); font-size: 13px; }
    .tag-cloud { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 24px; }
    .tag-cloud span { padding: 7px 11px; border: 1px solid #c9e2da; color: #345e59; background: #f9fdfb; font-size: 12px; }
    .workflow { background: #f3faf7; border-block: 1px solid #deeee8; }
    .steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; counter-reset: step; border-top: 1px solid #b9d9cf; }
    .step { position: relative; padding: 23px 24px 5px 0; counter-increment: step; }
    .step::before { content: "0" counter(step); display: block; margin: -31px 0 18px; width: 34px; height: 34px; line-height: 32px; text-align: center; color: var(--teal-dark); background: #e6f5ef; border: 1px solid #b9d9cf; border-radius: 50%; font-weight: 800; font-size: 11px; }
    .step h3 { margin: 0 0 7px; font-size: 16px; }
    .step p { margin: 0; color: var(--muted); font-size: 13px; }
    .usecase-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 42px; align-items: start; }
    .usecase-intro { padding: 23px; color: #eaf8f4; background: var(--teal-dark); }
    .usecase-intro h3 { margin: 0 0 10px; font-size: 21px; }
    .usecase-intro p { margin: 0; color: #d0eae2; font-size: 14px; }
    .usecase-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 24px; }
    .usecase-list div { padding: 11px 0; border-bottom: 1px solid var(--line); }
    .usecase-list b { display: block; font-size: 14px; }
    .usecase-list span { color: var(--muted); font-size: 12px; }
    .platforms { padding-block: 32px; background: #fff; border-block: 1px solid var(--line); }
    .platforms-row { display: flex; align-items: center; gap: 24px; }
    .platforms-row h2 { flex: 0 0 auto; margin: 0; font-size: 16px; }
    .platforms-row p { margin: 0; color: var(--muted); font-size: 13px; }
    .media-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 22px; align-items: start; }
    .media-main, .media-side { min-width: 0; }
    .media-main img, .media-side img { display: block; width: 100%; max-width: 100%; height: auto; object-fit: contain; }
    .media-side img { margin-bottom: 14px; }
    .media-caption { padding: 15px 0; border-bottom: 1px solid var(--line); }
    .media-caption strong { display: block; margin-bottom: 4px; }
    .media-caption span { color: var(--muted); font-size: 13px; }
    .comparison { background: #f5faf7; border-block: 1px solid var(--line); }
    .rating-panel { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 22px; padding: 20px 24px; background: #e4f4ee; border-left: 4px solid var(--teal); }
    .rating-panel strong { display: block; font-size: 20px; }
    .rating-score { text-align: right; white-space: nowrap; }
    .rating-score b { color: var(--teal-dark); font-size: 31px; }
    .rating-stars { color: #c47731; letter-spacing: 0; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); background: #fff; }
    table { width: 100%; min-width: 720px; border-collapse: collapse; text-align: left; }
    th, td { padding: 13px 16px; border-bottom: 1px solid #e4eeea; font-size: 13px; vertical-align: top; }
    th { color: var(--teal-dark); background: #eaf6f2; font-size: 12px; }
    td:first-child { font-weight: 750; }
    .good { color: #136d5e; font-weight: 700; }
    .plain { color: #657976; }
    .review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .review { padding: 20px; border-top: 2px solid #8ec8b8; background: #fff; }
    .review blockquote { margin: 0 0 16px; color: #3e5d59; font-size: 14px; }
    .review footer { color: var(--muted); font-size: 12px; }
    .review footer strong { display: block; color: var(--ink); font-size: 13px; }
    .price-row { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 0; border-block: 1px solid var(--line); }
    .price-cell { padding: 18px 22px; }
    .price-cell + .price-cell { border-left: 1px solid var(--line); }
    .price-cell b { display: block; margin-bottom: 5px; font-size: 15px; }
    .price-cell p { margin: 0; color: var(--muted); font-size: 13px; }
    .faq-area { background: #eaf6f2; border-block: 1px solid #d8ebe4; }
    .faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 28px; }
    details { border-bottom: 1px solid #cce1d9; }
    summary { position: relative; padding: 16px 34px 16px 0; cursor: pointer; list-style: none; font-weight: 750; font-size: 14px; }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; position: absolute; right: 2px; top: 12px; color: var(--teal); font-size: 22px; font-weight: 400; }
    details[open] summary::after { content: "−"; }
    details p { margin: 0 25px 16px 0; color: var(--muted); font-size: 13px; }
    .insight-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 35px; }
    .insight-block { border-top: 2px solid var(--teal); padding-top: 15px; }
    .insight-block h3 { margin: 0 0 12px; font-size: 19px; }
    .insight-list { margin: 0; padding: 0; list-style: none; }
    .insight-list li { padding: 10px 0; border-bottom: 1px solid var(--line); }
    .insight-list a { text-decoration: none; font-size: 14px; }
    .insight-list a:hover { color: var(--teal); }
    .contact-section { background: #e4f4ee; border-top: 1px solid #d0e8df; }
    .contact-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 50px; align-items: start; }
    .contact-info p { color: var(--muted); }
    .contact-info a { color: var(--teal-dark); }
    .contact-list { margin: 22px 0 0; padding: 0; list-style: none; }
    .contact-list li { padding: 8px 0; border-bottom: 1px solid #cfe4dc; font-size: 14px; }
    .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: 12px; font-weight: 750; }
    .field input, .field select, .field textarea { width: 100%; border: 1px solid #b8d6cc; border-radius: 3px; padding: 11px 12px; color: var(--ink); background: #fff; outline: none; }
    .field input:focus, .field select:focus, .field textarea:focus { border-color: var(--teal); box-shadow: 0 0 0 3px rgba(8,126,120,.1); }
    .field textarea { min-height: 110px; resize: vertical; }
    .form-submit { margin-top: 14px; }
    .site-footer { padding-block: 27px; color: #d9eeea; background: #164542; }
    .footer-row { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
    .footer-row p { margin: 0; font-size: 12px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 8px 16px; }
    .footer-links a { color: #e6f5f0; text-decoration: none; font-size: 12px; }
    .footer-links a:hover { text-decoration: underline; }
    .float-tools { position: fixed; z-index: 18; right: 16px; bottom: 18px; display: grid; gap: 8px; }
    .float-tools a, .float-tools button { width: 44px; height: 44px; display: grid; place-items: center; border: 1px solid #bddbd1; border-radius: 50%; color: var(--teal-dark); background: #fff; box-shadow: 0 5px 18px rgba(22,69,66,.12); text-decoration: none; cursor: pointer; font-size: 12px; font-weight: 800; }
    .float-tools button { display: none; }
    .reveal { opacity: 0; transform: translateY(12px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.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: 980px) {
      .nav-toggle { display: inline-flex; align-items: center; gap: 8px; }
      .nav-row { position: relative; }
      .nav-links { display: none; position: absolute; top: calc(100% - 1px); right: 0; left: 0; padding: 12px; background: #f7fcfa; border: 1px solid var(--line); box-shadow: 0 12px 20px rgba(22,69,66,.09); align-items: stretch; }
      .nav-links.open { display: grid; grid-template-columns: 1fr 1fr; }
      .nav-links a { padding: 10px; }
      .nav-links .nav-cta { margin: 4px 0 0; text-align: center; }
      .hero-inner { gap: 26px; }
    }
    @media (max-width: 700px) {
      .container { width: min(var(--container), calc(100% - 30px)); }
      .hero-inner { grid-template-columns: 1fr; padding-block: 49px 38px; }
      .hero-copy { font-size: 15px; }
      .hero-proof { max-width: 440px; }
      section { padding-block: 48px; }
      .section-head { display: block; }
      .section-head p { margin-top: 12px; }
      .about-layout, .usecase-layout, .media-grid, .contact-grid { grid-template-columns: 1fr; gap: 26px; }
      .service-grid { grid-template-columns: 1fr 1fr; }
      .steps { grid-template-columns: 1fr 1fr; row-gap: 26px; }
      .usecase-list { gap: 0 16px; }
      .platforms-row { display: block; }
      .platforms-row p { margin-top: 8px; }
      .review-grid { grid-template-columns: 1fr 1fr; }
      .faq-list { grid-template-columns: 1fr; }
      .contact-grid { gap: 26px; }
      .footer-row { align-items: flex-start; flex-direction: column; }
      .float-tools { right: 10px; bottom: 12px; }
      .float-tools button { display: grid; }
    }
    @media (max-width: 460px) {
      .nav-links.open { grid-template-columns: 1fr; max-height: 70vh; overflow-y: auto; }
      .service-grid, .review-grid { grid-template-columns: 1fr; }
      .steps { grid-template-columns: 1fr; row-gap: 20px; }
      .step { padding-top: 0; }
      .step::before { margin: -17px 0 12px; }
      .about-points { grid-template-columns: 1fr 1fr; }
      .price-row { grid-template-columns: 1fr; }
      .price-cell + .price-cell { border-left: 0; border-top: 1px solid var(--line); }
      .form-grid { grid-template-columns: 1fr; }
      .field.full { grid-column: auto; }
      .rating-panel { align-items: flex-start; flex-direction: column; }
      .rating-score { text-align: left; }
    }