:root {
      color-scheme: light;
      --ink: #19332b;
      --muted: #586d64;
      --green: #176b4b;
      --green-dark: #10543b;
      --mint: #dff3e7;
      --line: #d9e9df;
      --paper: #f4fbf6;
      --white: #fff;
      --lime: #c8ec74;
      --coral: #e88368;
      --container: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 90px; }
    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(var(--container), calc(100% - 40px)); margin-inline: auto; }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 20;
      background: rgba(248, 252, 249, .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: 10px; text-decoration: none; flex: 0 0 auto; }
    .brand img { width: 42px; height: 42px; object-fit: contain; }
    .brand-name { font-weight: 800; letter-spacing: 0; font-size: 18px; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; flex-wrap: wrap; }
    .nav-links a { padding: 10px 11px; color: #425b50; text-decoration: none; font-size: 13px; white-space: nowrap; }
    .nav-links a:hover { color: var(--green); }
    .nav-links .nav-cta { margin-left: 8px; padding: 10px 16px; border-radius: 5px; color: #fff; background: var(--green); font-weight: 700; }
    .menu-toggle { display: none; border: 1px solid var(--line); background: var(--white); color: var(--ink); padding: 8px 11px; border-radius: 4px; cursor: pointer; }
    .hero { position: relative; overflow: hidden; padding: 72px 0 46px; background: #eaf7ee; border-bottom: 1px solid var(--line); }
    .hero::before, .hero::after { content: ""; position: absolute; border: 1px solid rgba(23,107,75,.17); border-radius: 50%; pointer-events: none; }
    .hero::before { width: 460px; height: 460px; right: -160px; top: -190px; }
    .hero::after { width: 330px; height: 330px; right: -95px; top: -125px; }
    .hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(270px, 390px); align-items: center; gap: 54px; position: relative; z-index: 1; }
    .eyebrow { color: var(--green); font-weight: 800; font-size: 13px; letter-spacing: 0; text-transform: uppercase; }
    h1 { margin: 16px 0 18px; max-width: 720px; font-size: clamp(38px, 6vw, 66px); line-height: 1.1; letter-spacing: 0; }
    .hero-copy { max-width: 620px; color: #496258; font-size: 17px; margin: 0 0 26px; }
    .actions { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
    .button { display: inline-flex; justify-content: center; align-items: center; min-height: 46px; padding: 0 19px; border-radius: 4px; border: 1px solid var(--green); text-decoration: none; font-weight: 750; transition: transform .18s ease, background .18s ease, box-shadow .18s ease; cursor: pointer; }
    .button:hover { transform: translateY(-2px); box-shadow: 0 7px 18px rgba(23,107,75,.15); }
    .button-primary { color: #fff; background: var(--green); }
    .button-primary:hover { background: var(--green-dark); }
    .button-secondary { color: var(--green); background: transparent; }
    .hero-note { margin-top: 18px; color: var(--muted); font-size: 13px; }
    .hero-panel { border-left: 3px solid var(--green); padding: 12px 0 12px 25px; }
    .hero-panel strong { display: block; font-size: 22px; line-height: 1.35; }
    .hero-panel p { color: var(--muted); margin: 10px 0 0; }
    .hero-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
    .hero-tags span { border: 1px solid #b8d8c3; padding: 6px 10px; color: #315d48; font-size: 12px; }
    .metric-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; padding: 24px 0; border-bottom: 1px solid var(--line); }
    .metric { padding: 4px 24px; border-right: 1px solid var(--line); }
    .metric:first-child { padding-left: 0; }
    .metric:last-child { border: 0; }
    .metric strong { display: block; font-size: 22px; color: var(--green); }
    .metric span { display: block; color: var(--muted); font-size: 13px; }
    section.content-section { padding: 72px 0; }
    .section-heading { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 30px; }
    .section-heading h2 { margin: 7px 0 0; font-size: clamp(27px, 4vw, 38px); line-height: 1.2; letter-spacing: 0; }
    .section-heading p { max-width: 490px; margin: 0; color: var(--muted); }
    .intro-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: start; }
    .intro-layout p { color: var(--muted); margin-top: 0; }
    .feature-list { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 0 22px; }
    .feature-list li { border-top: 1px solid var(--line); padding: 13px 0; font-weight: 650; }
    .feature-list li span { color: var(--green); margin-right: 9px; }
    .band { background: #e9f5ed; border-block: 1px solid var(--line); }
    .service-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0 22px; }
    .service-item { padding: 20px 0; border-top: 1px solid #cbded1; }
    .service-item h3 { font-size: 17px; margin: 0 0 7px; }
    .service-item p { color: var(--muted); font-size: 14px; margin: 0; }
    .service-index { color: var(--green); font-size: 12px; font-weight: 800; }
    .process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: step; }
    .process article { border-top: 2px solid var(--green); padding-top: 15px; }
    .process article::before { counter-increment: step; content: "0" counter(step); color: var(--green); font-size: 13px; font-weight: 800; }
    .process h3 { margin: 8px 0 6px; font-size: 18px; }
    .process p { color: var(--muted); font-size: 14px; margin: 0; }
    .solution-row { display: grid; grid-template-columns: .8fr 1.2fr; gap: 44px; align-items: start; }
    .solution-row h2 { margin: 0 0 12px; font-size: 32px; line-height: 1.2; }
    .solution-row p { color: var(--muted); margin-top: 0; }
    .solution-lines { border-top: 1px solid var(--line); }
    .solution-line { display: flex; justify-content: space-between; align-items: baseline; gap: 20px; padding: 13px 0; border-bottom: 1px solid var(--line); }
    .solution-line strong { min-width: 110px; }
    .solution-line span { color: var(--muted); text-align: right; font-size: 14px; }
    .showcase { display: grid; grid-template-columns: 1.2fr .8fr; gap: 20px; align-items: start; }
    .media-frame { border: 1px solid var(--line); background: #e7f1e9; overflow: hidden; }
    .media-frame img { display: block; max-width: 100%; width: 100%; height: auto; }
    .showcase-side { display: grid; gap: 20px; }
    .showcase-side .media-frame img { aspect-ratio: 4 / 3; object-fit: cover; }
    .case-caption { padding: 12px 14px; color: var(--muted); font-size: 13px; }
    .comparison { background: #fff; border: 1px solid var(--line); padding: 26px; display: grid; grid-template-columns: 250px 1fr; gap: 32px; }
    .score { border-right: 1px solid var(--line); padding-right: 26px; }
    .score-label { color: var(--muted); font-size: 14px; }
    .score strong { display: block; color: var(--green); font-size: 48px; line-height: 1.2; }
    .stars { color: #d78a34; letter-spacing: 0; font-size: 20px; }
    .score p { margin: 8px 0 0; color: var(--muted); font-size: 13px; }
    .table-wrap { overflow-x: auto; }
    table { width: 100%; border-collapse: collapse; min-width: 570px; text-align: left; }
    th, td { padding: 11px 12px; border-bottom: 1px solid #e4eee7; vertical-align: top; }
    th { background: #f0f8f2; color: #315d48; font-size: 13px; }
    td { font-size: 14px; }
    .positive { color: var(--green); font-weight: 750; }
    .reviews { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px 26px; }
    .review { padding: 18px 0; border-top: 1px solid #cbded1; }
    .review p { margin: 0 0 14px; color: #3f594d; }
    .review strong { display: block; font-size: 14px; }
    .review span { color: var(--muted); font-size: 12px; }
    .article-list { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
    .article-list a { display: block; text-decoration: none; border-top: 2px solid var(--green); padding: 14px 0; }
    .article-list a:hover strong { color: var(--green); }
    .article-list strong { display: block; font-size: 15px; line-height: 1.5; }
    .article-list span { display: block; color: var(--muted); font-size: 12px; margin-top: 7px; }
    .tag-list { display: flex; flex-wrap: wrap; gap: 9px; }
    .tag-list span { color: #315d48; background: #e7f4eb; border: 1px solid #cfe4d5; padding: 7px 11px; font-size: 13px; }
    .faq-list { border-top: 1px solid var(--line); }
    .faq-item { border-bottom: 1px solid var(--line); }
    .faq-item summary { position: relative; cursor: pointer; list-style: none; padding: 17px 38px 17px 0; font-weight: 700; }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary::after { content: "+"; position: absolute; right: 4px; top: 13px; color: var(--green); font-size: 22px; font-weight: 400; }
    .faq-item[open] summary::after { content: "−"; }
    .faq-item p { color: var(--muted); margin: -4px 35px 17px 0; }
    .contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: start; }
    .contact-copy h2 { margin: 0 0 12px; font-size: 34px; line-height: 1.2; }
    .contact-copy > p { color: var(--muted); }
    .contact-details { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 20px; margin-top: 24px; }
    .contact-details div { border-top: 1px solid var(--line); padding-top: 10px; }
    .contact-details span { display: block; color: var(--muted); font-size: 12px; }
    .contact-details strong, .contact-details a { font-size: 14px; }
    .qr { margin-top: 20px; width: 140px; }
    .qr img { display: block; width: 100%; height: auto; border: 1px solid var(--line); }
    .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%; border: 1px solid #c7dbce; 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(--green); box-shadow: 0 0 0 3px rgba(23,107,75,.1); }
    .field textarea { min-height: 120px; resize: vertical; }
    .form-submit { grid-column: 1 / -1; }
    .site-footer { background: #e7f2ea; color: #244236; border-top: 1px solid var(--line); padding: 27px 0 22px; }
    .footer-row { display: flex; justify-content: space-between; align-items: start; gap: 25px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 7px 18px; max-width: 700px; }
    .footer-links a { color: #315d48; font-size: 13px; text-decoration: none; }
    .footer-links a:hover { text-decoration: underline; }
    .copyright { color: #586d64; font-size: 12px; margin-top: 18px; border-top: 1px solid #cbded1; padding-top: 13px; }
    .float-contact { position: fixed; z-index: 15; right: 18px; bottom: 22px; display: grid; gap: 8px; }
    .float-contact a { background: var(--green); color: #fff; text-decoration: none; font-size: 13px; padding: 10px 13px; border-radius: 3px; box-shadow: 0 4px 14px rgba(25,65,45,.2); }
    .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; }
    }
    @media (max-width: 980px) {
      .nav-links a { padding-inline: 7px; font-size: 12px; }
      .hero-grid { gap: 30px; }
      .service-grid { grid-template-columns: repeat(3, 1fr); }
      .article-list { grid-template-columns: repeat(3, 1fr); }
    }
    @media (max-width: 760px) {
      .container { width: min(var(--container), calc(100% - 32px)); }
      .nav-row { min-height: 66px; }
      .menu-toggle { display: inline-flex; }
      .nav-links { display: none; position: absolute; top: 65px; left: 0; right: 0; padding: 10px 16px 16px; background: #f8fcf9; border-bottom: 1px solid var(--line); box-shadow: 0 10px 18px rgba(25,65,45,.08); align-items: stretch; }
      .nav-links.open { display: grid; grid-template-columns: 1fr 1fr; }
      .nav-links a { padding: 10px; font-size: 14px; }
      .nav-links .nav-cta { margin: 4px 0 0; text-align: center; }
      .hero { padding: 55px 0 30px; }
      .hero-grid { grid-template-columns: 1fr; gap: 30px; }
      .hero-panel { max-width: 500px; }
      .metric-strip { grid-template-columns: 1fr 1fr; row-gap: 18px; }
      .metric:nth-child(2) { border: 0; }
      .metric:nth-child(3) { padding-left: 0; }
      section.content-section { padding: 54px 0; }
      .section-heading { display: block; }
      .section-heading p { margin-top: 12px; }
      .intro-layout, .solution-row, .contact-grid { grid-template-columns: 1fr; gap: 28px; }
      .service-grid { grid-template-columns: 1fr 1fr; }
      .process { grid-template-columns: 1fr 1fr; }
      .showcase { grid-template-columns: 1fr; }
      .showcase-side { grid-template-columns: 1fr 1fr; }
      .comparison { grid-template-columns: 1fr; gap: 20px; padding: 20px; }
      .score { border-right: 0; border-bottom: 1px solid var(--line); padding: 0 0 18px; }
      .reviews { grid-template-columns: 1fr 1fr; }
      .article-list { grid-template-columns: 1fr 1fr; }
      .footer-row { display: block; }
      .footer-links { margin-top: 14px; }
    }
    @media (max-width: 480px) {
      h1 { font-size: 39px; }
      .service-grid, .process, .reviews, .showcase-side, .article-list { grid-template-columns: 1fr; }
      .feature-list { grid-template-columns: 1fr; }
      .solution-line { align-items: start; flex-direction: column; gap: 4px; }
      .solution-line span { text-align: left; }
      .contact-details { grid-template-columns: 1fr; }
      .form-grid { grid-template-columns: 1fr; }
      .field.full, .form-submit { grid-column: auto; }
      .float-contact { right: 10px; bottom: 12px; }
    }