:root {
      color-scheme: light;
      --ink: #18221f;
      --muted: #5f6d67;
      --paper: #f8f9f6;
      --white: #fff;
      --line: #dfe5df;
      --green: #176c55;
      --green-dark: #104c3d;
      --lime: #d6ed78;
      --coral: #ef765b;
      --yellow: #f4ce62;
      --blue: #80bfca;
      --container: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--paper);
      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; }
    img { max-width: 100%; height: auto; }
    .container { width: min(var(--container), calc(100% - 40px)); margin-inline: auto; }
    .site-header { position: sticky; top: 0; z-index: 20; background: rgba(248,249,246,.95); border-bottom: 1px solid rgba(24,34,31,.09); backdrop-filter: blur(14px); }
    .nav-row { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
    .brand { display: inline-flex; align-items: center; gap: 11px; flex-shrink: 0; font-weight: 800; }
    .brand img { width: 42px; }
    .brand span { font-size: 17px; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; list-style: none; margin: 0; padding: 0; }
    .nav-links a { display: block; padding: 10px 11px; color: #394740; font-size: 13px; white-space: nowrap; }
    .nav-links a:hover { color: var(--green); }
    .nav-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
    .menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); background: var(--white); border-radius: 6px; color: var(--ink); cursor: pointer; }
    .button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 46px; padding: 0 19px; border: 1px solid transparent; border-radius: 4px; font-weight: 700; transition: transform .2s, background .2s, box-shadow .2s; cursor: pointer; }
    .button:hover { transform: translateY(-2px); }
    .button-primary { background: var(--green); color: #fff; box-shadow: 0 7px 18px rgba(23,108,85,.18); }
    .button-primary:hover { background: var(--green-dark); }
    .button-light { background: #fff; color: var(--ink); border-color: var(--line); }
    .button-light:hover { border-color: var(--green); }
    .hero { position: relative; overflow: hidden; padding: 88px 0 62px; background: #e9f2e8; border-bottom: 1px solid #dbe7db; }
    .hero::before { content: ""; position: absolute; width: 450px; height: 450px; right: -130px; top: -215px; border: 1px solid rgba(23,108,85,.16); border-radius: 50%; box-shadow: 0 0 0 42px rgba(23,108,85,.035), 0 0 0 84px rgba(23,108,85,.025); }
    .hero::after { content: ""; position: absolute; width: 180px; height: 180px; right: 16%; bottom: -115px; background: var(--lime); border-radius: 50%; opacity: .55; }
    .hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(240px, .7fr); align-items: center; gap: 48px; }
    .eyebrow { display: inline-flex; align-items: center; gap: 9px; color: var(--green-dark); font-size: 13px; font-weight: 800; letter-spacing: 1.2px; }
    .eyebrow::before { content: ""; width: 24px; height: 2px; background: var(--coral); }
    h1 { max-width: 720px; margin: 18px 0 18px; font-size: clamp(38px, 5vw, 66px); line-height: 1.1; letter-spacing: 0; }
    .hero-copy { max-width: 650px; margin: 0; color: #45544d; font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
    .hero-note { margin-top: 18px; color: #53615b; font-size: 13px; }
    .hero-art { position: relative; min-height: 280px; display: grid; place-items: center; }
    .orbit { position: absolute; width: 255px; aspect-ratio: 1; border: 1px solid rgba(23,108,85,.28); border-radius: 50%; animation: turn 24s linear infinite; }
    .orbit::before, .orbit::after { content: ""; position: absolute; width: 13px; height: 13px; background: var(--coral); border-radius: 50%; }
    .orbit::before { top: 29px; left: 48px; }
    .orbit::after { right: 9px; bottom: 76px; background: var(--yellow); }
    .orbit-two { width: 190px; border-color: rgba(239,118,91,.38); animation-direction: reverse; animation-duration: 18s; }
    .orbit-two::before { background: var(--blue); top: 9px; left: 97px; }
    .core-mark { position: relative; z-index: 1; display: grid; place-items: center; width: 132px; aspect-ratio: 1; border-radius: 35px 35px 35px 8px; background: var(--green); color: #fff; font-size: 32px; font-weight: 900; box-shadow: 12px 13px 0 var(--lime); transform: rotate(-5deg); }
    .orbit-label { position: absolute; padding: 6px 10px; background: #fff; border: 1px solid var(--line); color: #35453d; font-size: 12px; font-weight: 700; }
    .label-one { top: 13px; right: 0; }
    .label-two { bottom: 17px; left: 1px; }
    .label-three { top: 50%; right: -25px; }
    .metrics { padding: 25px 0; background: var(--white); border-bottom: 1px solid var(--line); }
    .metric-row { display: grid; grid-template-columns: repeat(4, 1fr); }
    .metric { padding: 7px 24px; border-right: 1px solid var(--line); }
    .metric:first-child { padding-left: 0; }
    .metric:last-child { border-right: 0; }
    .metric strong { display: block; color: var(--green); font-size: 22px; line-height: 1.3; }
    .metric span { color: var(--muted); font-size: 13px; }
    .section { padding: 78px 0; }
    .section-tint { background: #eef3ec; }
    .section-dark { background: #173d33; color: #fff; }
    .section-heading { display: flex; align-items: end; justify-content: space-between; gap: 25px; margin-bottom: 32px; }
    .section-heading h2 { margin: 8px 0 0; font-size: clamp(27px, 3vw, 40px); line-height: 1.2; letter-spacing: 0; }
    .section-heading p { max-width: 520px; margin: 0; color: var(--muted); }
    .section-dark .section-heading p { color: #c3d2ca; }
    .kicker { color: var(--green); font-weight: 800; font-size: 12px; letter-spacing: 1.4px; text-transform: uppercase; }
    .section-dark .kicker { color: var(--lime); }
    .intro-grid { display: grid; grid-template-columns: 1fr 1fr; align-items: start; gap: 54px; }
    .intro-copy { font-size: 17px; color: #45544d; }
    .intro-copy p { margin-top: 0; }
    .intro-quote { padding: 20px 23px; border-left: 4px solid var(--coral); background: #fff; color: #3d4c45; }
    .capability-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 28px; margin: 0; padding: 0; list-style: none; }
    .capability-list li { padding: 13px 0; border-bottom: 1px solid var(--line); color: #33423b; }
    .capability-list li::before { content: "↗"; display: inline-block; margin-right: 10px; color: var(--green); font-weight: 800; }
    .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .service-item { min-height: 170px; padding: 22px; background: #fff; border: 1px solid var(--line); border-top: 3px solid var(--green); transition: transform .2s, box-shadow .2s; }
    .service-item:nth-child(3n+2) { border-top-color: var(--coral); }
    .service-item:nth-child(3n) { border-top-color: #d4aa2f; }
    .service-item:hover { transform: translateY(-4px); box-shadow: 0 12px 26px rgba(27,55,43,.09); }
    .service-item h3 { margin: 0 0 8px; font-size: 17px; }
    .service-item p { margin: 0; color: var(--muted); font-size: 14px; }
    .tool-strip { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 26px; }
    .tool-tag { padding: 7px 11px; background: #e7eee8; border: 1px solid #d5e0d7; color: #34473d; font-size: 13px; }
    .workflow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; counter-reset: flow; }
    .step { position: relative; padding: 25px 22px 20px; border-top: 1px solid #cbd8ce; counter-increment: flow; }
    .step::before { content: "0" counter(flow); display: block; margin-bottom: 18px; color: var(--coral); font-weight: 900; font-size: 24px; }
    .step h3 { margin: 0 0 8px; font-size: 18px; }
    .step p { margin: 0; color: var(--muted); font-size: 14px; }
    .industry-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
    .industry { padding: 20px; min-height: 145px; background: var(--white); border: 1px solid var(--line); }
    .industry b { display: block; margin-bottom: 9px; color: var(--green-dark); font-size: 16px; }
    .industry span { color: var(--muted); font-size: 14px; }
    .network-row { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; align-items: center; }
    .network-copy p { color: #d0ddd6; }
    .network-points { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
    .network-points div { padding: 15px; border: 1px solid rgba(255,255,255,.2); color: #eaf1ec; }
    .network-points strong { display: block; color: var(--lime); font-size: 14px; }
    .case-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }
    .case { padding: 14px; background: #fff; border: 1px solid var(--line); }
    .case-media { overflow: hidden; background: #e9eee8; }
    .case-media img { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
    .case h3 { margin: 16px 5px 6px; font-size: 17px; }
    .case p { margin: 0 5px 7px; color: var(--muted); font-size: 14px; }
    .case-square img { aspect-ratio: 1; }
    .review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .review { padding: 21px; background: #fff; border: 1px solid var(--line); }
    .review .stars { color: #ca9d1e; letter-spacing: 2px; }
    .review blockquote { margin: 12px 0 16px; color: #394840; font-size: 14px; }
    .review cite { color: var(--muted); font-size: 13px; font-style: normal; font-weight: 700; }
    .compare-wrap { overflow-x: auto; border: 1px solid var(--line); background: #fff; }
    .compare { width: 100%; border-collapse: collapse; min-width: 720px; }
    .compare th, .compare td { padding: 15px 17px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
    .compare thead th { background: #e8f1e8; color: #283a31; }
    .compare tbody th { width: 19%; color: #34463c; }
    .compare td { color: #5b6962; font-size: 14px; }
    .rating-band { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 19px; padding: 19px 22px; background: var(--green); color: white; }
    .rating-band strong { font-size: 25px; }
    .rating-band span { color: var(--lime); font-weight: 800; }
    .score { font-size: 34px; font-weight: 900; }
    .price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .price-item { padding: 22px; border: 1px solid var(--line); background: #fff; }
    .price-item h3 { margin: 0 0 9px; }
    .price-item p { margin: 0; color: var(--muted); font-size: 14px; }
    .price-item b { display: block; margin-top: 14px; color: var(--green); font-size: 13px; }
    .faq-list { max-width: 900px; margin-inline: auto; border-top: 1px solid var(--line); }
    .faq-list details { border-bottom: 1px solid var(--line); }
    .faq-list summary { position: relative; padding: 17px 42px 17px 2px; list-style: none; cursor: pointer; font-weight: 700; }
    .faq-list summary::-webkit-details-marker { display: none; }
    .faq-list summary::after { content: "+"; position: absolute; right: 7px; top: 12px; color: var(--green); font-size: 24px; transition: transform .2s; }
    .faq-list details[open] summary::after { transform: rotate(45deg); }
    .faq-list details p { margin: 0; padding: 0 36px 18px 2px; color: var(--muted); }
    .article-list { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; }
    .article-link { display: flex; min-height: 100px; flex-direction: column; justify-content: space-between; padding: 15px; border: 1px solid var(--line); background: #fff; transition: border-color .2s, transform .2s; }
    .article-link:hover { border-color: var(--green); transform: translateY(-3px); }
    .article-link span { color: var(--green); font-size: 12px; font-weight: 800; }
    .article-link strong { font-size: 14px; }
    .knowledge-row { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
    .knowledge-block { padding: 23px; background: #fff; border-left: 4px solid var(--yellow); }
    .knowledge-block h3 { margin: 0 0 9px; }
    .knowledge-block p { margin: 0; color: var(--muted); font-size: 14px; }
    .contact-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 44px; align-items: start; }
    .contact-info p { color: var(--muted); }
    .contact-links { display: grid; gap: 9px; margin-top: 22px; }
    .contact-links a { color: var(--green-dark); font-weight: 700; }
    .qr-wrap { width: 150px; margin-top: 18px; padding: 8px; background: #fff; border: 1px solid var(--line); }
    .qr-wrap img { display: block; width: 100%; aspect-ratio: 1; object-fit: contain; }
    .form-panel { padding: 25px; background: #fff; 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 { color: #34433b; font-size: 13px; font-weight: 700; }
    .field input, .field select, .field textarea { width: 100%; padding: 11px 12px; color: var(--ink); background: #fbfcfa; border: 1px solid #cfd8d1; border-radius: 3px; outline: none; }
    .field input:focus, .field select:focus, .field textarea:focus { border-color: var(--green); box-shadow: 0 0 0 3px rgba(23,108,85,.1); }
    .field textarea { min-height: 112px; resize: vertical; }
    .form-submit { margin-top: 16px; }
    .form-status { min-height: 24px; color: var(--green-dark); font-size: 13px; }
    .affiliate { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 28px; background: #e5efd9; border-left: 5px solid var(--coral); }
    .affiliate h2 { margin: 0 0 6px; font-size: 24px; }
    .affiliate p { margin: 0; color: #4e5c53; }
    .friend-links { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 20px; }
    .friend-links a { color: #43534a; font-size: 13px; text-decoration: underline; text-decoration-color: #a9b7ab; text-underline-offset: 3px; }
    .site-footer { margin-top: 0; padding: 25px 0; background: #e7ece6; color: #33423a; border-top: 1px solid #d5ded5; }
    .footer-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; font-size: 13px; }
    .footer-row p { margin: 0; }
    .footer-row a { color: #1d604d; font-weight: 700; }
    .float-tools { position: fixed; right: 18px; bottom: 20px; z-index: 15; display: grid; gap: 8px; }
    .float-tools a, .float-tools button { display: grid; place-items: center; width: 46px; height: 46px; padding: 0; background: #fff; border: 1px solid var(--line); border-radius: 4px; color: var(--green-dark); box-shadow: 0 5px 18px rgba(25,44,34,.12); cursor: pointer; font-size: 12px; font-weight: 800; }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease; }
    .reveal.visible { opacity: 1; transform: translateY(0); }
    @keyframes turn { to { transform: rotate(360deg); } }
    @media (max-width: 1050px) {
      .nav-links a { padding-inline: 7px; font-size: 12px; }
      .nav-actions .button { padding-inline: 12px; }
      .service-grid { grid-template-columns: repeat(2, 1fr); }
      .industry-grid { grid-template-columns: repeat(2, 1fr); }
      .article-list { grid-template-columns: repeat(3, 1fr); }
    }
    @media (max-width: 780px) {
      .container { width: min(var(--container), calc(100% - 32px)); }
      .nav-row { min-height: 66px; }
      .menu-toggle { display: inline-grid; place-items: center; }
      .nav-links { display: none; position: absolute; left: 0; right: 0; top: 66px; padding: 8px 16px 14px; background: var(--paper); border-bottom: 1px solid var(--line); grid-template-columns: repeat(3, 1fr); }
      .nav-links.open { display: grid; }
      .nav-links a { padding: 10px 8px; }
      .nav-actions .button { display: none; }
      .hero { padding: 64px 0 42px; }
      .hero-inner { grid-template-columns: 1fr; gap: 12px; }
      .hero-art { min-height: 230px; }
      .orbit { width: 210px; }
      .orbit-two { width: 158px; }
      .core-mark { width: 106px; font-size: 27px; }
      .metric-row { grid-template-columns: 1fr 1fr; gap: 17px 0; }
      .metric:nth-child(2) { border-right: 0; }
      .metric:nth-child(3) { padding-left: 0; }
      .section { padding: 58px 0; }
      .section-heading { display: block; }
      .section-heading p { margin-top: 12px; }
      .intro-grid, .network-row, .contact-layout { grid-template-columns: 1fr; gap: 25px; }
      .workflow { grid-template-columns: 1fr 1fr; }
      .case-grid { grid-template-columns: 1fr 1fr; }
      .review-grid { grid-template-columns: 1fr 1fr; }
      .price-grid { grid-template-columns: 1fr; }
      .article-list { grid-template-columns: 1fr 1fr; }
      .affiliate { align-items: flex-start; flex-direction: column; }
    }
    @media (max-width: 520px) {
      .brand img { width: 36px; }
      .brand span { font-size: 15px; }
      h1 { font-size: 40px; }
      .hero-copy { font-size: 15px; }
      .service-grid, .industry-grid, .case-grid, .review-grid, .knowledge-row { grid-template-columns: 1fr; }
      .capability-list { grid-template-columns: 1fr; }
      .workflow { grid-template-columns: 1fr; }
      .step { padding: 18px 10px; }
      .form-grid { grid-template-columns: 1fr; }
      .field-full { grid-column: auto; }
      .rating-band { align-items: flex-start; flex-direction: column; }
      .footer-row { align-items: flex-start; flex-direction: column; }
      .float-tools { right: 10px; bottom: 12px; }
      .float-tools a, .float-tools button { width: 42px; height: 42px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }