:root {
      color-scheme: light;
      --ink: #17251f;
      --muted: #5c6b64;
      --paper: #f7f8f6;
      --white: #fff;
      --line: #dfe6df;
      --green: #a8ed59;
      --green-deep: #315d2b;
      --blue: #3976df;
      --orange: #ff9d56;
      --pink: #ff7287;
      --shadow: 0 14px 36px rgba(29, 53, 39, .08);
      --container: 1160px;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 88px; }
    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; }
    img { max-width: 100%; }
    .container { width: min(var(--container), calc(100% - 40px)); margin-inline: auto; }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 20;
      background: rgba(247, 248, 246, .94);
      border-bottom: 1px solid rgba(223, 230, 223, .85);
      backdrop-filter: blur(14px);
    }
    .nav-row { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
    .brand { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; font-weight: 800; font-size: 18px; }
    .brand img { display: block; width: 38px; height: 38px; object-fit: contain; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; }
    .nav-links a { padding: 10px 12px; color: #43524a; font-size: 13px; white-space: nowrap; transition: color .2s ease; }
    .nav-links a:hover { color: var(--green-deep); }
    .nav-actions { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
    .nav-toggle { display: none; width: 42px; height: 42px; padding: 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--white); color: var(--ink); }
    .nav-toggle span { display: block; width: 18px; height: 2px; margin: 4px auto; background: currentColor; }
    .button { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 10px 17px; border: 1px solid transparent; border-radius: 7px; font-size: 14px; font-weight: 700; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
    .button:hover { transform: translateY(-2px); }
    .button-primary { background: var(--green); color: #17251f; box-shadow: 0 6px 16px rgba(112, 174, 56, .19); }
    .button-primary:hover { background: #b8f276; box-shadow: 0 9px 20px rgba(112, 174, 56, .26); }
    .button-outline { border-color: #cbd8ce; background: var(--white); color: var(--ink); }
    .button-dark { background: var(--ink); color: #fff; }
    .hero {
      overflow: hidden;
      position: relative;
      padding: 76px 0 66px;
      background-color: #eff5ed;
      background-image: linear-gradient(135deg, rgba(168, 237, 89, .16), transparent 46%), linear-gradient(315deg, rgba(57, 118, 223, .08), transparent 42%);
      border-bottom: 1px solid #e1e9df;
    }
    .hero::after {
      content: "";
      position: absolute;
      width: 300px;
      height: 300px;
      right: max(3%, calc((100vw - var(--container)) / 2));
      top: 22px;
      border: 1px solid rgba(49, 93, 43, .13);
      border-radius: 50%;
      box-shadow: 0 0 0 34px rgba(49, 93, 43, .035), 0 0 0 70px rgba(49, 93, 43, .025);
      pointer-events: none;
      animation: orbit 24s linear infinite;
    }
    .hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(260px, .75fr); align-items: center; gap: 48px; }
    .eyebrow { display: inline-flex; align-items: center; gap: 9px; margin: 0 0 18px; color: var(--green-deep); font-size: 13px; font-weight: 800; }
    .eyebrow::before { content: ""; width: 24px; height: 2px; background: var(--green-deep); }
    h1 { max-width: 700px; margin: 0; font-size: clamp(38px, 5vw, 64px); line-height: 1.12; letter-spacing: 0; }
    .hero-copy { max-width: 650px; margin: 20px 0 26px; color: #506056; font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
    .hero-note { display: flex; align-items: center; gap: 10px; margin-top: 25px; color: #526259; font-size: 13px; }
    .hero-note strong { color: var(--ink); }
    .hero-note-mark { display: inline-grid; place-items: center; width: 23px; height: 23px; border-radius: 50%; background: var(--green); color: #20351f; font-weight: 800; }
    .hero-aside { position: relative; padding: 26px 0 26px 28px; border-left: 1px solid #cbd9c9; }
    .hero-aside-label { margin: 0 0 15px; color: var(--muted); font-size: 12px; font-weight: 700; }
    .model-cloud { display: flex; flex-wrap: wrap; gap: 8px; max-width: 330px; }
    .model-cloud span { display: inline-block; padding: 8px 11px; border: 1px solid rgba(75, 105, 74, .2); border-radius: 5px; background: rgba(255,255,255,.68); color: #33463a; font-size: 12px; }
    .hero-aside-foot { max-width: 290px; margin: 19px 0 0; color: #68756d; font-size: 13px; }
    .metric-band { padding: 21px 0; background: #fff; border-bottom: 1px solid var(--line); }
    .metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
    .metric { padding: 7px 18px; border-left: 2px solid var(--green); }
    .metric strong { display: block; font-size: 18px; }
    .metric span { display: block; color: var(--muted); font-size: 12px; }
    .section { padding: 76px 0; }
    .section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 30px; }
    .section-head > div { max-width: 710px; }
    .section-kicker { margin: 0 0 8px; color: var(--green-deep); font-size: 12px; font-weight: 800; text-transform: uppercase; }
    h2 { margin: 0; font-size: clamp(28px, 3.5vw, 40px); line-height: 1.2; letter-spacing: 0; }
    .section-intro { margin: 12px 0 0; color: var(--muted); font-size: 15px; }
    .text-link { color: var(--green-deep); font-weight: 750; font-size: 14px; white-space: nowrap; }
    .about-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 56px; align-items: start; }
    .about-copy { max-width: 460px; color: var(--muted); }
    .about-copy p { margin: 0 0 14px; }
    .about-emphasis { margin-top: 24px; padding: 15px 0 15px 17px; border-left: 3px solid var(--orange); color: var(--ink); font-weight: 700; }
    .capability-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
    .capability { min-height: 132px; padding: 17px; border: 1px solid var(--line); background: rgba(255,255,255,.72); transition: transform .2s ease, box-shadow .2s ease; }
    .capability:hover, .service:hover, .review:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
    .capability i { display: block; width: 9px; height: 9px; margin-bottom: 14px; background: var(--orange); }
    .capability:nth-child(2) i, .capability:nth-child(5) i { background: var(--blue); }
    .capability:nth-child(3) i { background: var(--pink); }
    .capability h3, .service h3, .solution h3, .case-copy h3, .review h3 { margin: 0 0 7px; font-size: 16px; }
    .capability p, .service p, .solution p { margin: 0; color: var(--muted); font-size: 13px; }
    .tint-section { background: #eef4ee; border-block: 1px solid #e0e9df; }
    .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid #d6e0d5; border-left: 1px solid #d6e0d5; }
    .service { min-height: 184px; padding: 22px; border-right: 1px solid #d6e0d5; border-bottom: 1px solid #d6e0d5; background: rgba(255,255,255,.54); transition: transform .2s ease, box-shadow .2s ease; }
    .service-index { display: inline-block; margin-bottom: 19px; color: var(--green-deep); font-size: 11px; font-weight: 800; }
    .tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
    .tag-row span { padding: 6px 10px; border: 1px solid #d7e1d6; border-radius: 4px; color: #47584c; background: #fff; font-size: 12px; }
    .workflow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
    .step { position: relative; padding: 24px 22px 26px 0; }
    .step + .step { padding-left: 22px; border-left: 1px solid var(--line); }
    .step-num { display: inline-flex; align-items: center; justify-content: center; width: 32px; height: 32px; margin-bottom: 16px; border-radius: 50%; background: var(--green); font-size: 12px; font-weight: 800; }
    .step h3 { margin: 0 0 6px; font-size: 16px; }
    .step p { margin: 0; color: var(--muted); font-size: 13px; }
    .solution-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
    .solution { padding: 20px; border-top: 3px solid var(--blue); background: #fff; }
    .solution:nth-child(2) { border-top-color: var(--orange); }
    .solution:nth-child(3) { border-top-color: var(--green-deep); }
    .solution:nth-child(4) { border-top-color: var(--pink); }
    .solution .solution-type { margin: 0 0 12px; color: var(--muted); font-size: 11px; font-weight: 700; }
    .case-feature { display: grid; grid-template-columns: 1.05fr .95fr; gap: 30px; align-items: center; }
    .case-media { overflow: hidden; background: #e7ece5; }
    .case-media img { display: block; width: 100%; height: auto; object-fit: contain; }
    .case-copy { padding: 10px 0; }
    .case-copy p { color: var(--muted); }
    .case-points { display: grid; grid-template-columns: repeat(2, 1fr); gap: 9px 18px; margin: 20px 0; padding: 0; list-style: none; }
    .case-points li { color: #445349; font-size: 13px; }
    .case-points li::before { content: "•"; padding-right: 8px; color: var(--green-deep); }
    .case-secondary { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 28px; }
    .case-small { display: grid; grid-template-columns: minmax(110px, .4fr) 1fr; gap: 17px; align-items: center; padding-top: 15px; border-top: 1px solid var(--line); }
    .case-small img { display: block; width: 100%; height: auto; aspect-ratio: 1 / 1; object-fit: contain; background: #edf0eb; }
    .case-small h3 { margin: 0 0 5px; font-size: 14px; }
    .case-small p { margin: 0; color: var(--muted); font-size: 12px; }
    .review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
    .review { padding: 21px; border: 1px solid var(--line); background: #fff; transition: transform .2s ease, box-shadow .2s ease; }
    .review-mark { margin-bottom: 12px; color: #df8b35; font-size: 15px; letter-spacing: 2px; }
    .review blockquote { margin: 0 0 17px; color: #44534a; font-size: 14px; }
    .review h3 { margin: 0; font-size: 13px; }
    .review span { color: var(--muted); font-size: 11px; }
    .rating-layout { display: grid; grid-template-columns: .68fr 1.32fr; gap: 35px; align-items: start; }
    .rating-panel { padding: 25px; background: var(--ink); color: #fff; }
    .rating-panel p { margin: 0; color: #d5e0d8; }
    .rating-score { display: flex; align-items: baseline; gap: 8px; margin: 16px 0 4px; }
    .rating-score strong { color: var(--green); font-size: 54px; line-height: 1; }
    .rating-score span { color: #d5e0d8; }
    .rating-stars { color: #ffd273; font-size: 19px; letter-spacing: 3px; }
    .rating-panel .rating-caption { margin-top: 16px; font-size: 13px; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); background: #fff; }
    .comparison { width: 100%; border-collapse: collapse; min-width: 620px; }
    .comparison th, .comparison td { padding: 13px 15px; border-bottom: 1px solid var(--line); text-align: left; font-size: 13px; }
    .comparison thead th { background: #eef4ee; color: var(--ink); font-weight: 800; }
    .comparison tbody tr:last-child td { border-bottom: 0; }
    .comparison td:first-child { color: #43534a; font-weight: 700; }
    .comparison td:nth-child(2) { color: var(--green-deep); font-weight: 700; }
    .comparison td:last-child { color: var(--muted); }
    .price-note { margin: 12px 0 0; color: var(--muted); font-size: 12px; }
    .faq-layout { display: grid; grid-template-columns: .7fr 1.3fr; gap: 48px; align-items: start; }
    .faq-aside p { color: var(--muted); }
    .faq-list { border-top: 1px solid var(--line); }
    .faq-item { border-bottom: 1px solid var(--line); }
    .faq-item summary { position: relative; padding: 17px 34px 17px 0; cursor: pointer; list-style: none; font-weight: 700; }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary::after { content: "+"; position: absolute; right: 3px; top: 12px; color: var(--green-deep); font-size: 22px; font-weight: 400; }
    .faq-item[open] summary::after { content: "−"; }
    .faq-item p { margin: -3px 28px 17px 0; color: var(--muted); font-size: 14px; }
    .articles { display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
    .article { min-height: 130px; padding: 18px 16px; border-right: 1px solid var(--line); }
    .article:last-child { border-right: 0; }
    .article span { display: block; margin-bottom: 16px; color: var(--green-deep); font-size: 11px; font-weight: 800; }
    .article h3 { margin: 0; font-size: 14px; line-height: 1.5; }
    .contact-section { padding: 69px 0; background: #e9f1e8; border-top: 1px solid #dce7db; }
    .contact-layout { display: grid; grid-template-columns: .83fr 1.17fr; gap: 50px; align-items: start; }
    .contact-copy p { max-width: 420px; color: var(--muted); }
    .contact-details { display: grid; gap: 8px; margin-top: 22px; color: #405146; font-size: 14px; }
    .contact-details a { width: fit-content; text-decoration: underline; text-decoration-color: #a7b8aa; text-underline-offset: 3px; }
    .form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 13px; }
    .field { display: grid; gap: 6px; }
    .field-full { grid-column: 1 / -1; }
    .field label { color: #405146; font-size: 12px; font-weight: 750; }
    .field input, .field select, .field textarea { width: 100%; min-height: 44px; padding: 10px 12px; border: 1px solid #cbd8cb; border-radius: 5px; outline: none; background: #fff; color: var(--ink); }
    .field textarea { min-height: 106px; resize: vertical; }
    .field input:focus, .field select:focus, .field textarea:focus { border-color: #668e54; box-shadow: 0 0 0 3px rgba(102, 142, 84, .12); }
    .form-foot { display: flex; align-items: center; gap: 14px; margin-top: 14px; }
    .form-status { margin: 0; color: var(--green-deep); font-size: 13px; }
    .partners { padding: 25px 0; background: #fff; border-bottom: 1px solid var(--line); }
    .partners-row { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
    .partners h2 { flex: 0 0 auto; font-size: 15px; }
    .partner-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 9px 20px; }
    .partner-links a { color: #4e5c53; font-size: 12px; }
    .partner-links a:hover { color: var(--green-deep); text-decoration: underline; }
    .site-footer { padding: 28px 0; background: #f7f8f6; color: #34443a; }
    .footer-row { display: flex; justify-content: space-between; align-items: center; gap: 20px; }
    .footer-brand { font-weight: 800; }
    .footer-meta { color: #66736a; font-size: 12px; text-align: right; }
    .float-contact { position: fixed; right: 17px; bottom: 20px; z-index: 15; display: flex; flex-direction: column; align-items: flex-end; gap: 8px; }
    .float-contact a { display: inline-flex; align-items: center; gap: 8px; padding: 10px 13px; border: 1px solid #dce6dc; border-radius: 6px; background: #fff; color: var(--ink); box-shadow: 0 5px 18px rgba(23, 37, 31, .1); font-size: 12px; font-weight: 750; }
    .float-contact a:first-child { background: var(--green); border-color: var(--green); }
    .to-top { display: none !important; }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.is-visible { opacity: 1; transform: translateY(0); }
    @keyframes orbit { to { transform: rotate(360deg); } }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }
    @media (max-width: 980px) {
      .nav-row { gap: 10px; }
      .nav-links a { padding-inline: 8px; font-size: 12px; }
      .nav-actions .button { padding-inline: 12px; }
      .hero-inner { gap: 24px; }
      .solution-grid { grid-template-columns: repeat(2, 1fr); }
      .articles { grid-template-columns: repeat(3, 1fr); }
      .article:nth-child(3) { border-right: 0; }
      .article:nth-child(n+4) { border-top: 1px solid var(--line); }
    }
    @media (max-width: 760px) {
      .container { width: min(var(--container), calc(100% - 32px)); }
      .nav-row { min-height: 66px; }
      .brand { font-size: 16px; }
      .brand img { width: 34px; height: 34px; }
      .nav-toggle { display: block; margin-left: auto; }
      .nav-actions .button-outline { display: none; }
      .nav-links { display: none; position: absolute; top: 66px; left: 0; right: 0; padding: 8px 16px 14px; border-bottom: 1px solid var(--line); background: var(--paper); align-items: stretch; flex-direction: column; box-shadow: 0 12px 18px rgba(23,37,31,.06); }
      .nav-links.is-open { display: flex; }
      .nav-links a { padding: 10px 8px; font-size: 14px; }
      .nav-actions { gap: 8px; }
      .nav-actions .button { min-height: 40px; padding-inline: 12px; font-size: 12px; }
      .hero { padding: 55px 0 45px; }
      .hero-inner { grid-template-columns: 1fr; gap: 31px; }
      .hero::after { width: 205px; height: 205px; top: 28px; right: -72px; }
      h1 { max-width: 560px; font-size: 43px; }
      .hero-copy { max-width: 550px; font-size: 15px; }
      .hero-aside { padding: 19px 0 0; border-left: 0; border-top: 1px solid #cbd9c9; }
      .model-cloud { max-width: 100%; }
      .metrics { grid-template-columns: repeat(2, 1fr); gap: 16px 10px; }
      .metric { padding-left: 12px; }
      .section { padding: 56px 0; }
      .section-head { align-items: start; flex-direction: column; gap: 15px; margin-bottom: 23px; }
      .about-layout, .case-feature, .rating-layout, .faq-layout, .contact-layout { grid-template-columns: 1fr; gap: 28px; }
      .capability-grid { grid-template-columns: repeat(2, 1fr); }
      .service-grid { grid-template-columns: repeat(2, 1fr); }
      .workflow { grid-template-columns: repeat(2, 1fr); }
      .step { padding: 20px 14px 20px 0; }
      .step + .step { padding-left: 14px; }
      .step:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
      .step:nth-child(4) { border-top: 1px solid var(--line); }
      .review-grid { grid-template-columns: repeat(2, 1fr); }
      .case-small { grid-template-columns: minmax(90px, .42fr) 1fr; }
      .partners-row { align-items: start; flex-direction: column; }
      .partner-links { justify-content: flex-start; }
      .footer-row { align-items: flex-start; flex-direction: column; }
      .footer-meta { text-align: left; }
      .float-contact { right: 10px; bottom: 12px; }
      .float-contact a { padding: 9px 11px; }
    }
    @media (max-width: 480px) {
      .container { width: calc(100% - 28px); }
      h1 { font-size: 38px; }
      .hero-actions .button { flex: 1 1 auto; }
      .hero-note { align-items: flex-start; }
      .capability-grid, .service-grid, .solution-grid, .review-grid { grid-template-columns: 1fr; }
      .capability { min-height: auto; }
      .service { min-height: auto; }
      .service-index { margin-bottom: 10px; }
      .workflow { grid-template-columns: 1fr; }
      .step, .step + .step { padding: 17px 0; border-left: 0; border-top: 1px solid var(--line); }
      .step:first-child { border-top: 0; }
      .case-secondary { grid-template-columns: 1fr; }
      .case-points { grid-template-columns: 1fr; }
      .articles { grid-template-columns: 1fr; }
      .article, .article:nth-child(3) { min-height: auto; padding: 14px 0; border-right: 0; border-top: 1px solid var(--line); }
      .article:first-child { border-top: 0; }
      .article span { margin-bottom: 5px; }
      .form-grid { grid-template-columns: 1fr; }
      .field-full { grid-column: auto; }
      .form-foot { align-items: flex-start; flex-direction: column; }
      .case-small { grid-template-columns: 100px 1fr; }
      .rating-panel { padding: 21px; }
    }