:root {
      color-scheme: light;
      --ink: #182333;
      --muted: #647184;
      --line: #dce3eb;
      --paper: #f6f8fc;
      --white: #fff;
      --teal: #087f83;
      --teal-dark: #075e65;
      --coral: #e16d54;
      --lime: #d9ef8b;
      --blue: #647ce7;
      --max: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 86px; }
    body {
      margin: 0;
      background: var(--paper);
      color: var(--ink);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.65;
    }
    a { color: inherit; }
    button, input, select, textarea { font: inherit; }
    .container { width: min(calc(100% - 40px), var(--max)); margin-inline: auto; }
    .site-header { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.94); border-bottom: 1px solid var(--line); backdrop-filter: blur(14px); }
    .nav-row { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
    .brand { display: flex; align-items: center; gap: 11px; text-decoration: none; font-weight: 750; white-space: nowrap; }
    .brand img { width: 38px; height: 38px; object-fit: contain; }
    .nav-links { display: flex; align-items: center; gap: 0; justify-content: flex-end; }
    .nav-links a { text-decoration: none; color: #415064; padding: 10px 11px; font-size: 13px; transition: color .2s ease; }
    .nav-links a:hover { color: var(--teal); }
    .nav-cta, .button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 0; border-radius: 5px; padding: 12px 18px; background: var(--teal); color: white; font-weight: 700; text-decoration: none; transition: background .2s ease, transform .2s ease, box-shadow .2s ease; }
    .nav-cta { padding: 10px 15px; white-space: nowrap; }
    .nav-cta:hover, .button:hover { background: var(--teal-dark); transform: translateY(-2px); box-shadow: 0 8px 18px rgba(8,127,131,.2); }
    .menu-toggle { display: none; border: 1px solid var(--line); border-radius: 5px; background: white; color: var(--ink); padding: 8px 11px; cursor: pointer; }
    .hero { overflow: hidden; position: relative; background: #eaf1f5; border-bottom: 1px solid #d6e1e6; }
    .hero::before { content: ""; position: absolute; inset: 0; opacity: .45; background: repeating-linear-gradient(132deg, transparent 0 72px, rgba(8,127,131,.12) 73px, transparent 75px 134px); pointer-events: none; }
    .hero::after { content: ""; position: absolute; width: 430px; aspect-ratio: 1; right: max(-145px, calc((100vw - 1400px)/2)); top: 44px; border: 1px solid rgba(8,127,131,.3); border-radius: 50%; box-shadow: 0 0 0 34px rgba(100,124,231,.06), 0 0 0 70px rgba(225,109,84,.045); pointer-events: none; }
    .hero-inner { position: relative; z-index: 1; padding-block: 70px 42px; }
    .hero-copy { max-width: 760px; }
    .eyebrow { color: var(--teal-dark); font-size: 12px; font-weight: 800; letter-spacing: 1.4px; text-transform: uppercase; }
    h1 { max-width: 720px; margin: 14px 0 17px; font-size: clamp(38px, 6vw, 64px); line-height: 1.1; letter-spacing: 0; }
    .hero-copy p { max-width: 660px; margin: 0; color: #4d5e6d; font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 27px; }
    .button.secondary { color: var(--ink); border: 1px solid #b8c8d0; background: rgba(255,255,255,.72); }
    .button.secondary:hover { background: white; box-shadow: 0 8px 18px rgba(29,54,70,.1); }
    .hero-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 56px; border-top: 1px solid #c9d7dc; }
    .hero-stat { padding: 20px 18px 0 0; }
    .hero-stat strong { display: block; font-size: 19px; }
    .hero-stat span { color: var(--muted); font-size: 13px; }
    main { overflow: hidden; }
    .section { padding-block: 72px; border-bottom: 1px solid #e1e7ed; }
    .section.soft { background: #eff4f3; }
    .section.white { background: #fff; }
    .section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 30px; }
    .section-head > div { max-width: 720px; }
    .section-kicker { color: var(--teal); font-size: 12px; font-weight: 800; letter-spacing: 1px; }
    h2 { margin: 5px 0 8px; font-size: clamp(27px, 4vw, 38px); line-height: 1.2; letter-spacing: 0; }
    .section-head p, .intro-copy p { margin: 0; color: var(--muted); }
    .text-link { color: var(--teal-dark); font-weight: 700; text-decoration-thickness: 1px; text-underline-offset: 4px; white-space: nowrap; }
    .intro-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: start; }
    .intro-copy { max-width: 680px; }
    .intro-copy p + p { margin-top: 13px; }
    .intro-points { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 24px; border-top: 1px solid var(--line); }
    .point { padding: 15px 0; border-bottom: 1px solid var(--line); }
    .point strong { display: block; font-size: 15px; }
    .point span { color: var(--muted); font-size: 13px; }
    .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
    .service { min-width: 0; padding: 22px 20px; background: rgba(255,255,255,.62); border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); transition: background .2s ease, transform .2s ease; }
    .service:hover { position: relative; z-index: 1; transform: translateY(-3px); background: white; }
    .service-label { color: var(--teal); font-size: 11px; font-weight: 800; letter-spacing: .7px; }
    .service h3 { margin: 6px 0; font-size: 18px; }
    .service p { margin: 0; color: var(--muted); font-size: 13px; }
    .process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; counter-reset: step; }
    .process-item { position: relative; padding: 4px 16px 0 0; border-top: 2px solid #9fbfbc; }
    .process-item::before { counter-increment: step; content: "0" counter(step); display: block; margin: 13px 0 8px; color: var(--coral); font-size: 13px; font-weight: 800; }
    .process-item h3 { margin: 0 0 6px; font-size: 17px; }
    .process-item p { margin: 0; color: var(--muted); font-size: 13px; }
    .industry-row { display: grid; grid-template-columns: 150px 1fr; gap: 24px; padding: 19px 0; border-top: 1px solid var(--line); }
    .industry-row h3 { margin: 0; font-size: 16px; }
    .industry-row p { margin: 0; color: var(--muted); font-size: 14px; }
    .image-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; align-items: start; }
    .image-frame { margin: 0; padding: 11px; background: #fff; border: 1px solid var(--line); }
    .image-frame img, .square-image img { display: block; width: 100%; height: auto; }
    .image-frame figcaption { padding: 10px 4px 2px; color: var(--muted); font-size: 13px; }
    .square-row { display: grid; grid-template-columns: 180px 1fr; gap: 24px; align-items: center; margin-top: 20px; padding-top: 20px; border-top: 1px solid var(--line); }
    .square-image { width: 100%; margin: 0; padding: 8px; background: white; border: 1px solid var(--line); }
    .square-row p { margin: 0; color: var(--muted); }
    .review-top { display: flex; align-items: center; gap: 28px; margin-bottom: 25px; }
    .score { min-width: 145px; padding-right: 26px; border-right: 1px solid var(--line); }
    .score strong { display: block; color: var(--teal-dark); font-size: 42px; line-height: 1; }
    .score span { color: var(--muted); font-size: 13px; }
    .stars { color: #cf7b25; letter-spacing: 2px; font-size: 19px; }
    .review-top p { max-width: 590px; margin: 0; color: var(--muted); }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); background: white; }
    table { width: 100%; min-width: 720px; border-collapse: collapse; text-align: left; }
    th, td { padding: 13px 16px; border-bottom: 1px solid #e7ebef; vertical-align: top; }
    th { background: #eaf2f1; font-size: 13px; }
    td { color: #4e5c6b; font-size: 13px; }
    td:first-child { color: var(--ink); font-weight: 700; }
    tr:last-child td { border-bottom: 0; }
    .check { color: var(--teal-dark); font-weight: 700; }
    .reviews { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 24px; border-top: 1px solid var(--line); }
    .review { padding: 18px 0; border-bottom: 1px solid var(--line); }
    .review p { margin: 0 0 12px; color: #465464; font-size: 14px; }
    .review strong { display: block; font-size: 13px; }
    .review span { color: var(--muted); font-size: 12px; }
    .model-note { display: flex; flex-wrap: wrap; gap: 8px; }
    .model-tag { padding: 6px 10px; border: 1px solid #d6e0e2; background: rgba(255,255,255,.7); color: #435264; font-size: 12px; }
    .model-note + p { margin: 16px 0 0; color: var(--muted); font-size: 13px; }
    .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; font-weight: 700; list-style: none; }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; position: absolute; right: 4px; top: 14px; color: var(--teal); font-size: 22px; font-weight: 400; }
    details[open] summary::after { content: "−"; }
    details p { max-width: 850px; margin: -2px 35px 17px 0; color: var(--muted); font-size: 14px; }
    .articles { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
    .article { min-height: 118px; display: flex; flex-direction: column; justify-content: space-between; padding: 15px; border: 1px solid var(--line); background: white; text-decoration: none; transition: border-color .2s ease, transform .2s ease; }
    .article:hover { transform: translateY(-3px); border-color: var(--teal); }
    .article span { color: var(--muted); font-size: 12px; }
    .article strong { font-size: 14px; }
    .contact-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 48px; align-items: start; }
    .contact-info p { color: var(--muted); }
    .contact-method { padding: 12px 0; border-top: 1px solid var(--line); }
    .contact-method strong { display: block; font-size: 13px; }
    .contact-method a { color: var(--teal-dark); text-decoration: none; }
    .contact-method span { color: var(--muted); font-size: 14px; }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
    .field { display: flex; flex-direction: column; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    .field label { font-size: 13px; font-weight: 700; }
    .field input, .field select, .field textarea { width: 100%; border: 1px solid #cbd5dd; border-radius: 4px; padding: 11px 12px; background: white; color: var(--ink); }
    .field textarea { min-height: 112px; resize: vertical; }
    .form-submit { margin-top: 17px; cursor: pointer; }
    .form-note { margin: 10px 0 0; color: var(--muted); font-size: 12px; }
    .service-network { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
    .network-block { padding-top: 16px; border-top: 2px solid #a6c7c5; }
    .network-block h3 { margin: 0 0 8px; font-size: 17px; }
    .network-block p { margin: 0; color: var(--muted); font-size: 14px; }
    .links { display: flex; flex-wrap: wrap; gap: 9px 18px; }
    .links a { color: var(--teal-dark); font-size: 13px; text-decoration: none; }
    .links a:hover { text-decoration: underline; }
    .site-footer { background: #e8edf1; color: #334153; padding: 25px 0; }
    .footer-row { display: flex; justify-content: space-between; align-items: center; gap: 18px; }
    .footer-row p { margin: 0; color: #526071; font-size: 12px; }
    .footer-row .links { justify-content: flex-end; }
    .float-tools { position: fixed; z-index: 15; right: 18px; bottom: 18px; display: grid; gap: 8px; }
    .float-tools a, .float-tools button { min-width: 48px; min-height: 44px; display: grid; place-items: center; border: 1px solid #cdd8dc; border-radius: 4px; background: white; color: var(--teal-dark); text-decoration: none; cursor: pointer; box-shadow: 0 4px 14px rgba(28,48,60,.1); font-size: 12px; }
    .qr-pop { position: absolute; right: 58px; bottom: 50px; width: 164px; padding: 10px; border: 1px solid var(--line); background: white; box-shadow: 0 8px 24px rgba(28,48,60,.15); opacity: 0; visibility: hidden; transform: translateY(6px); transition: .2s ease; }
    .qr-pop img { display: block; width: 100%; height: auto; }
    .qr-pop span { display: block; padding-top: 6px; text-align: center; font-size: 12px; }
    .float-tools a:hover + .qr-pop, .qr-pop:hover { opacity: 1; visibility: visible; transform: translateY(0); }
    .reveal { opacity: 0; transform: translateY(12px); 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: 960px) {
      .nav-row { flex-wrap: wrap; }
      .menu-toggle { display: inline-flex; }
      .nav-right { display: flex; align-items: center; gap: 10px; }
      .nav-links { display: none; order: 3; flex-basis: 100%; flex-wrap: wrap; justify-content: flex-start; padding: 0 0 12px; }
      .nav-links.open { display: flex; }
      .nav-links a { padding: 8px 10px; }
      .service-grid { grid-template-columns: repeat(2, 1fr); }
      .articles { grid-template-columns: repeat(3, 1fr); }
    }
    @media (max-width: 680px) {
      .container { width: min(calc(100% - 30px), var(--max)); }
      .nav-row { min-height: 64px; gap: 8px; }
      .brand img { width: 32px; height: 32px; }
      .nav-cta { padding: 9px 11px; font-size: 12px; }
      .hero-inner { padding-block: 55px 28px; }
      .hero::after { width: 300px; right: -170px; top: 210px; }
      .hero-copy p { font-size: 15px; }
      .hero-strip { grid-template-columns: repeat(2, 1fr); margin-top: 38px; }
      .hero-stat { padding: 15px 12px 0 0; }
      .section { padding-block: 52px; }
      .section-head { display: block; margin-bottom: 22px; }
      .section-head .text-link { display: inline-block; margin-top: 12px; }
      .intro-grid, .contact-grid { grid-template-columns: 1fr; gap: 26px; }
      .service-grid { grid-template-columns: 1fr; }
      .service { padding: 18px 16px; }
      .process { grid-template-columns: repeat(2, 1fr); gap: 24px 16px; }
      .industry-row { grid-template-columns: 1fr; gap: 5px; }
      .image-grid { grid-template-columns: 1fr; }
      .square-row { grid-template-columns: 112px 1fr; gap: 15px; }
      .review-top { align-items: flex-start; gap: 17px; }
      .score { min-width: 110px; padding-right: 15px; }
      .score strong { font-size: 36px; }
      .reviews { grid-template-columns: 1fr; }
      .articles { grid-template-columns: repeat(2, 1fr); }
      .article { min-height: 106px; padding: 12px; }
      .form-grid { grid-template-columns: 1fr; }
      .field.full { grid-column: auto; }
      .service-network { grid-template-columns: 1fr; gap: 22px; }
      .footer-row { align-items: flex-start; flex-direction: column; }
      .footer-row .links { justify-content: flex-start; }
      .float-tools { right: 10px; bottom: 10px; }
    }