:root {
      color-scheme: light;
      --ink: #17241f;
      --muted: #59665f;
      --paper: #f7f8f5;
      --white: #fff;
      --line: #dce3dc;
      --green: #b7f34a;
      --green-dark: #2d5523;
      --coral: #ff6348;
      --blue: #c7e8ff;
      --yellow: #ffe56d;
      --container: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    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; }
    .container { width: min(var(--container), calc(100% - 40px)); margin-inline: auto; }
    .site-header { position: sticky; top: 0; z-index: 20; background: rgba(247,248,245,.94); border-bottom: 1px solid var(--line); backdrop-filter: blur(14px); }
    .nav { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
    .brand { display: flex; align-items: center; gap: 11px; flex: 0 0 auto; font-weight: 800; font-size: 17px; }
    .brand img { display: block; width: 42px; max-height: 42px; object-fit: contain; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; flex-wrap: wrap; }
    .nav-links a { padding: 9px 10px; color: #38463e; font-size: 13px; transition: color .2s ease; }
    .nav-links a:hover { color: #719b20; }
    .nav-actions { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
    .menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); background: var(--white); color: var(--ink); border-radius: 4px; cursor: pointer; }
    .button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 46px; padding: 0 19px; border: 1px solid var(--ink); background: var(--ink); color: var(--white); font-weight: 700; font-size: 14px; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
    .button:hover { transform: translateY(-2px); box-shadow: 4px 4px 0 var(--green); }
    .button-primary { background: var(--green); color: var(--ink); border-color: var(--green); }
    .button-outline { background: transparent; color: var(--ink); }
    .button-small { min-height: 40px; padding-inline: 14px; font-size: 13px; }
    .hero { position: relative; overflow: hidden; padding: 76px 0 58px; border-bottom: 1px solid var(--line); background: var(--green); }
    .hero::before { content: ""; position: absolute; width: 420px; height: 420px; border: 1px solid rgba(23,36,31,.22); border-radius: 50%; right: -110px; top: -200px; }
    .hero::after { content: ""; position: absolute; width: 270px; height: 270px; border: 1px solid rgba(23,36,31,.18); border-radius: 50%; right: -35px; top: -125px; }
    .hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(250px, .65fr); align-items: center; gap: 54px; }
    .eyebrow { display: inline-flex; align-items: center; gap: 8px; margin: 0 0 18px; color: #31422b; font-size: 12px; font-weight: 800; text-transform: uppercase; }
    .eyebrow::before { content: ""; width: 24px; height: 2px; background: var(--coral); }
    h1, h2, h3, p { margin-top: 0; }
    h1 { max-width: 720px; margin-bottom: 18px; font-size: clamp(40px, 6vw, 72px); line-height: 1.08; font-weight: 850; }
    .hero-copy { max-width: 620px; margin-bottom: 26px; color: #29392f; font-size: 17px; }
    .hero-actions { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
    .hero-note { margin: 18px 0 0; font-size: 12px; color: #3f5140; }
    .hero-side { position: relative; padding: 26px; border: 1px solid rgba(23,36,31,.4); background: rgba(255,255,255,.42); }
    .hero-side-label { display: flex; justify-content: space-between; gap: 12px; padding-bottom: 16px; border-bottom: 1px solid rgba(23,36,31,.25); font-size: 12px; font-weight: 800; }
    .hero-side h2 { margin: 20px 0 8px; font-size: 24px; line-height: 1.25; }
    .hero-side p { margin-bottom: 18px; color: #38483c; font-size: 14px; }
    .hero-tags { display: flex; flex-wrap: wrap; gap: 8px; }
    .hero-tags span { padding: 6px 9px; border: 1px solid rgba(23,36,31,.28); font-size: 12px; }
    .metrics { padding: 22px 0; background: var(--ink); color: var(--white); }
    .metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
    .metric { padding: 7px 20px; border-right: 1px solid rgba(255,255,255,.22); }
    .metric:first-child { padding-left: 0; }
    .metric:last-child { border: 0; }
    .metric strong { display: block; color: var(--green); font-size: 18px; }
    .metric span { color: #e0e7e1; font-size: 12px; }
    .section { padding: 78px 0; }
    .section-tint { background: #edf2eb; }
    .section-dark { background: #17241f; color: var(--white); }
    .section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 30px; }
    .section-head > div { max-width: 720px; }
    .section-kicker { margin-bottom: 9px; color: #5d842a; font-size: 12px; font-weight: 800; }
    .section-dark .section-kicker { color: var(--green); }
    h2 { margin-bottom: 10px; font-size: clamp(28px, 4vw, 42px); line-height: 1.18; }
    .section-intro { max-width: 700px; margin: 0; color: var(--muted); }
    .section-dark .section-intro { color: #c7d1ca; }
    .about-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 42px; align-items: start; }
    .about-copy { font-size: 16px; color: #35443c; }
    .about-copy p:last-child { margin-bottom: 0; }
    .about-points { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 24px; border-top: 1px solid var(--line); }
    .about-point { padding: 18px 0; border-bottom: 1px solid var(--line); }
    .about-point h3 { margin-bottom: 5px; font-size: 16px; }
    .about-point p { margin: 0; color: var(--muted); font-size: 13px; }
    .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
    .service-card { min-height: 177px; padding: 21px; border: 1px solid var(--line); background: var(--white); transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease; }
    .service-card:hover { transform: translateY(-4px); border-color: #92b83b; box-shadow: 5px 5px 0 rgba(183,243,74,.75); }
    .service-card .number { display: block; margin-bottom: 19px; color: #7e9f46; font-size: 11px; font-weight: 800; }
    .service-card h3 { margin-bottom: 7px; font-size: 17px; }
    .service-card p { margin: 0; color: var(--muted); font-size: 13px; }
    .tool-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 23px; }
    .tool-row span { padding: 7px 11px; border: 1px solid #53625a; color: #f2f5f2; font-size: 12px; }
    .workflow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; counter-reset: step; }
    .workflow article { position: relative; padding: 22px 22px 22px 0; border-top: 2px solid var(--ink); }
    .workflow article::before { counter-increment: step; content: "0" counter(step); display: block; margin-bottom: 23px; color: var(--coral); font-size: 13px; font-weight: 900; }
    .workflow h3 { margin-bottom: 7px; font-size: 17px; }
    .workflow p { max-width: 220px; margin: 0; color: var(--muted); font-size: 13px; }
    .solutions { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
    .solution { display: grid; grid-template-columns: 120px 1fr; gap: 18px; align-items: start; padding: 22px; border-left: 4px solid var(--coral); background: var(--white); }
    .solution:nth-child(2) { border-color: #78b5e1; }
    .solution:nth-child(3) { border-color: #96c849; }
    .solution:nth-child(4) { border-color: #e3bd3f; }
    .solution strong { font-size: 14px; }
    .solution p { margin: 0; color: var(--muted); font-size: 13px; }
    .network-band { display: grid; grid-template-columns: .8fr 1.2fr; gap: 36px; align-items: center; }
    .network-band p { margin-bottom: 0; color: var(--muted); }
    .network-list { display: flex; flex-wrap: wrap; gap: 9px; }
    .network-list span { padding: 8px 11px; border: 1px solid var(--line); background: var(--white); font-size: 13px; }
    .case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .case-card { overflow: hidden; border: 1px solid var(--line); background: var(--white); }
    .case-card img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 10; object-fit: cover; background: #e8eee7; }
    .case-card-body { padding: 17px; }
    .case-card h3 { margin-bottom: 5px; font-size: 16px; }
    .case-card p { margin: 0; color: var(--muted); font-size: 13px; }
    .comparison-wrap { overflow-x: auto; border: 1px solid #3f5047; }
    .comparison { width: 100%; min-width: 720px; border-collapse: collapse; text-align: left; }
    .comparison th, .comparison td { padding: 13px 15px; border-bottom: 1px solid #3f5047; vertical-align: top; font-size: 13px; }
    .comparison th { color: var(--green); background: #22312a; font-weight: 800; }
    .comparison td { color: #e3e9e4; }
    .comparison td:first-child { width: 23%; color: var(--white); font-weight: 700; }
    .score-line { display: flex; align-items: center; flex-wrap: wrap; gap: 15px; margin: 0 0 22px; }
    .score { color: var(--yellow); font-size: 26px; font-weight: 900; }
    .stars { color: var(--yellow); font-size: 18px; letter-spacing: 0; }
    .match-form { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
    .field { display: flex; flex-direction: column; gap: 7px; }
    .field-full { grid-column: 1 / -1; }
    .field label { font-size: 13px; font-weight: 700; }
    .field input, .field select, .field textarea { width: 100%; min-height: 46px; padding: 11px 12px; border: 1px solid #bec9c0; border-radius: 0; background: var(--white); color: var(--ink); }
    .field textarea { min-height: 120px; resize: vertical; }
    .form-foot { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-top: 18px; }
    .form-foot p { margin: 0; color: var(--muted); font-size: 12px; }
    .reviews { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
    .review { padding: 19px; border-top: 3px solid var(--green); background: #24322a; }
    .review p { margin: 0 0 16px; color: #edf2ee; font-size: 14px; }
    .review footer { color: #b9c7bd; font-size: 12px; }
    .faq-list { border-top: 1px solid var(--line); }
    .faq-item { border-bottom: 1px solid var(--line); }
    .faq-item summary { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 17px 0; cursor: pointer; list-style: none; font-weight: 700; }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary::after { content: "+"; color: #6c982e; font-size: 22px; font-weight: 400; }
    .faq-item[open] summary::after { content: "−"; }
    .faq-item p { max-width: 850px; margin: -3px 35px 17px 0; color: var(--muted); font-size: 14px; }
    .articles { display: grid; grid-template-columns: 1fr 1fr; gap: 0 30px; border-top: 1px solid var(--line); }
    .article-link { display: flex; align-items: center; justify-content: space-between; gap: 15px; padding: 16px 0; border-bottom: 1px solid var(--line); font-weight: 700; }
    .article-link span { color: #739831; font-size: 12px; white-space: nowrap; }
    .footer { padding: 34px 0 22px; background: #e8ede7; color: var(--ink); }
    .footer-main { display: grid; grid-template-columns: 1fr 1.3fr; gap: 30px; padding-bottom: 23px; border-bottom: 1px solid #cbd4cc; }
    .footer-brand { display: flex; align-items: center; gap: 12px; font-size: 17px; font-weight: 800; }
    .footer-brand img { width: 40px; max-height: 40px; object-fit: contain; }
    .footer-contact { display: flex; flex-wrap: wrap; gap: 8px 20px; align-content: center; color: #39473e; font-size: 13px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 8px 16px; margin-top: 19px; font-size: 12px; }
    .footer-links a { color: #39473e; text-decoration: underline; text-decoration-color: #a1b09f; text-underline-offset: 3px; }
    .footer-bottom { display: flex; justify-content: space-between; gap: 16px; padding-top: 15px; color: #526057; font-size: 11px; }
    .contact-float { position: fixed; right: 18px; bottom: 20px; z-index: 15; display: flex; flex-direction: column; gap: 8px; }
    .contact-float a { display: block; padding: 10px 13px; border: 1px solid var(--ink); background: var(--white); color: var(--ink); font-size: 12px; font-weight: 800; box-shadow: 3px 3px 0 var(--green); }
    .contact-float a:hover { background: var(--green); }
    .to-top { display: none; }
    .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: 980px) {
      .nav-links { display: none; position: absolute; top: 75px; left: 0; right: 0; padding: 12px 20px 18px; border-bottom: 1px solid var(--line); background: var(--paper); }
      .nav-links.is-open { display: flex; justify-content: flex-start; }
      .nav-links a { width: 33.33%; padding: 10px 6px; }
      .menu-toggle { display: inline-grid; place-items: center; }
      .nav-actions .button { display: none; }
      .hero-grid { gap: 32px; }
      .service-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 680px) {
      .container { width: min(var(--container), calc(100% - 30px)); }
      .nav { min-height: 66px; }
      .nav-links { top: 65px; }
      .nav-links a { width: 50%; }
      .brand img { width: 36px; max-height: 36px; }
      .hero { padding: 53px 0 36px; }
      .hero-grid, .about-grid, .network-band, .footer-main { grid-template-columns: 1fr; }
      .hero-grid { gap: 27px; }
      .hero-side { padding: 20px; }
      .metric-grid { grid-template-columns: 1fr 1fr; row-gap: 14px; }
      .metric { padding: 5px 12px; }
      .metric:nth-child(2) { border-right: 0; }
      .metric:nth-child(3) { padding-left: 0; }
      .section { padding: 57px 0; }
      .section-head { display: block; }
      .section-head > .button { margin-top: 17px; }
      .service-grid, .case-grid, .reviews { grid-template-columns: 1fr; }
      .service-card { min-height: 0; }
      .workflow { grid-template-columns: 1fr 1fr; gap: 5px 18px; }
      .workflow article { padding-right: 5px; }
      .workflow article::before { margin-bottom: 14px; }
      .solutions { grid-template-columns: 1fr; }
      .solution { grid-template-columns: 96px 1fr; gap: 12px; padding: 17px; }
      .about-points { grid-template-columns: 1fr 1fr; gap: 0 16px; }
      .match-form { grid-template-columns: 1fr; }
      .field-full { grid-column: auto; }
      .form-foot { align-items: flex-start; flex-direction: column; }
      .articles { grid-template-columns: 1fr; }
      .footer-bottom { flex-direction: column; }
      .contact-float { right: 9px; bottom: 12px; }
      .contact-float a { padding: 9px 10px; }
    }