:root {
      color-scheme: light;
      --ink: #182321;
      --muted: #5d6c67;
      --paper: #f7f8f3;
      --panel: #fff;
      --line: #e0e8df;
      --green: #c8ff5a;
      --teal: #0b8477;
      --deep: #103c35;
      --violet: #7953c6;
      --radius: 22px;
      --shadow: 0 14px 38px rgba(20, 51, 40, .08);
      --container: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 90px; }
    body {
      margin: 0;
      color: var(--ink);
      background:
        radial-gradient(ellipse at 86% 8%, rgba(200,255,90,.16), transparent 33rem),
        radial-gradient(ellipse at 4% 42%, rgba(90,199,183,.10), transparent 32rem),
        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%; }
    .container { width: min(var(--container), calc(100% - 40px)); margin-inline: auto; }
    .site-header {
      position: sticky; top: 0; z-index: 20;
      background: rgba(247,248,243,.92);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(210,223,212,.8);
    }
    .header-row { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
    .brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 800; white-space: nowrap; }
    .brand img { width: 38px; height: 38px; object-fit: contain; }
    .brand-name { font-size: 17px; letter-spacing: .02em; }
    .nav-wrap { display: flex; align-items: center; gap: 20px; }
    .nav-links { display: flex; align-items: center; gap: 0; }
    .nav-links a { padding: 10px 11px; color: #455650; font-size: 13px; white-space: nowrap; transition: color .2s ease; }
    .nav-links a:hover { color: var(--teal); }
    .button {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      min-height: 46px; padding: 0 19px; border: 0; border-radius: 999px;
      font-weight: 750; cursor: pointer; transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
    }
    .button:hover { transform: translateY(-2px); box-shadow: 0 9px 22px rgba(11,132,119,.18); }
    .button-primary { color: #17352b; background: var(--green); }
    .button-dark { color: #fff; background: var(--deep); }
    .button-outline { color: var(--deep); border: 1px solid #a9c9bc; background: #fff; }
    .menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 50%; color: var(--deep); background: #fff; cursor: pointer; }
    .hero { padding: 76px 0 45px; overflow: hidden; }
    .hero-grid { display: grid; grid-template-columns: 1.16fr .84fr; gap: 54px; align-items: center; }
    .eyebrow { display: inline-flex; align-items: center; gap: 9px; margin: 0 0 20px; color: var(--teal); font-size: 12px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
    .eyebrow::before { content: ""; width: 26px; height: 2px; background: var(--teal); }
    h1, h2, h3, p { margin-top: 0; }
    h1 { max-width: 700px; margin-bottom: 20px; font-size: clamp(42px, 6.5vw, 76px); line-height: 1.08; letter-spacing: -.055em; }
    .hero h1 span { color: var(--teal); }
    .hero-copy { max-width: 620px; margin-bottom: 28px; color: var(--muted); font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
    .hero-note { margin: 18px 0 0; color: #697870; font-size: 13px; }
    .hero-visual {
      position: relative; min-height: 365px; padding: 27px;
      display: grid; align-content: center; gap: 15px;
      border: 1px solid #cbded1; border-radius: 36px;
      background: linear-gradient(145deg, #e8f6de 0%, #daf2ea 56%, #e8e4ff 100%);
      box-shadow: 0 24px 60px rgba(45,100,78,.12);
    }
    .hero-visual::before, .hero-visual::after { content: ""; position: absolute; border-radius: 50%; pointer-events: none; }
    .hero-visual::before { width: 170px; height: 170px; top: -37px; right: -25px; border: 1px solid rgba(11,132,119,.24); }
    .hero-visual::after { width: 105px; height: 105px; bottom: -22px; left: -25px; background: rgba(200,255,90,.5); filter: blur(2px); }
    .visual-topline { position: relative; z-index: 1; display: flex; justify-content: space-between; gap: 15px; color: #36534a; font-size: 12px; font-weight: 700; }
    .signal { width: 8px; height: 8px; display: inline-block; margin-right: 6px; border-radius: 50%; background: #62b961; box-shadow: 0 0 0 5px rgba(98,185,97,.14); }
    .flow-card {
      position: relative; z-index: 1; display: flex; align-items: center; justify-content: space-between; gap: 16px;
      padding: 17px 19px; border: 1px solid rgba(255,255,255,.9); border-radius: 18px;
      background: rgba(255,255,255,.8); box-shadow: 0 10px 24px rgba(27,69,54,.07);
      animation: float-in .65s both;
    }
    .flow-card:nth-of-type(3) { animation-delay: .12s; }
    .flow-card:nth-of-type(4) { animation-delay: .22s; }
    .flow-label { color: #6b7b72; font-size: 11px; }
    .flow-title { margin: 2px 0 0; font-size: 16px; font-weight: 800; }
    .flow-icon { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 13px; color: var(--deep); background: #e5f6cf; font-size: 18px; }
    .flow-card:nth-of-type(3) .flow-icon { background: #e5e0ff; }
    .flow-card:nth-of-type(4) .flow-icon { background: #d6f1ee; }
    .visual-caption { position: relative; z-index: 1; margin: 2px 0 0; color: #52675d; font-size: 12px; }
    .trust-strip { padding: 18px 0 38px; }
    .trust-row { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 18px 21px; border-block: 1px solid var(--line); }
    .trust-row strong { color: var(--deep); font-size: 14px; }
    .trust-tags { display: flex; flex-wrap: wrap; gap: 9px; }
    .trust-tags span, .tag { padding: 6px 11px; border: 1px solid #d8e4db; border-radius: 999px; color: #51665d; background: rgba(255,255,255,.75); font-size: 12px; }
    .section { padding: 66px 0; }
    .section-head { max-width: 720px; margin-bottom: 30px; }
    .section-head h2 { margin-bottom: 10px; font-size: clamp(29px, 4vw, 43px); line-height: 1.2; letter-spacing: -.035em; }
    .section-head p { margin-bottom: 0; color: var(--muted); }
    .section-kicker { margin-bottom: 9px; color: var(--teal); font-size: 12px; font-weight: 800; letter-spacing: .14em; }
    .about-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 24px; align-items: stretch; }
    .about-panel { padding: 30px; border-radius: var(--radius); color: #f4fff7; background: var(--deep); }
    .about-panel h3 { margin-bottom: 12px; font-size: 24px; }
    .about-panel p { color: #c8dbd1; }
    .about-panel .button { margin-top: 4px; }
    .capability-list { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 13px; }
    .capability-item { padding: 20px; border: 1px solid var(--line); border-radius: 17px; background: rgba(255,255,255,.78); }
    .capability-item strong { display: block; margin-bottom: 5px; font-size: 15px; }
    .capability-item span { color: var(--muted); font-size: 13px; }
    .service-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 14px; }
    .service-card { padding: 21px; border: 1px solid var(--line); border-radius: 19px; background: var(--panel); transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease; }
    .service-card:hover { transform: translateY(-4px); border-color: #a6d6bd; box-shadow: var(--shadow); }
    .service-icon { width: 39px; height: 39px; display: grid; place-items: center; margin-bottom: 14px; border-radius: 12px; background: #edfacf; color: var(--deep); font-size: 18px; }
    .service-card:nth-child(3n + 2) .service-icon { background: #e9e3ff; }
    .service-card:nth-child(3n) .service-icon { background: #dcf3ef; }
    .service-card h3 { margin-bottom: 7px; font-size: 17px; }
    .service-card p { margin-bottom: 0; color: var(--muted); font-size: 13px; }
    .workflow-band { padding: 31px; border-radius: 26px; background: linear-gradient(115deg,#e8f6d7,#e2f2ec 55%,#ece8ff); }
    .workflow-band .section-head { margin-bottom: 24px; }
    .step-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 12px; }
    .step { padding: 19px; border: 1px solid rgba(255,255,255,.9); border-radius: 17px; background: rgba(255,255,255,.8); }
    .step-number { display: block; margin-bottom: 12px; color: var(--teal); font-size: 12px; font-weight: 850; letter-spacing: .12em; }
    .step h3 { margin-bottom: 5px; font-size: 16px; }
    .step p { margin: 0; color: var(--muted); font-size: 13px; }
    .industry-layout { display: grid; grid-template-columns: .82fr 1.18fr; gap: 30px; align-items: start; }
    .industry-intro { padding: 25px; border-left: 3px solid var(--teal); background: #eef4ed; }
    .industry-intro h3 { margin-bottom: 8px; }
    .industry-intro p { margin-bottom: 0; color: var(--muted); font-size: 14px; }
    .tag-cloud { display: flex; flex-wrap: wrap; gap: 10px; }
    .tag { padding: 9px 13px; color: #29473d; font-size: 13px; }
    .network-panel { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; align-items: center; padding: 30px; border: 1px solid var(--line); border-radius: 24px; background: #fff; }
    .network-panel h3 { margin-bottom: 10px; font-size: 24px; }
    .network-panel p { margin-bottom: 0; color: var(--muted); }
    .model-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
    .model-cloud span { padding: 7px 10px; border-radius: 9px; color: #33534a; background: #eef5ed; font-size: 12px; }
    .media-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 16px; align-items: start; }
    .media-stack { display: grid; gap: 16px; }
    .media-frame { overflow: hidden; border: 1px solid var(--line); border-radius: 18px; background: #fff; }
    .media-frame img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; }
    .media-frame.square img { aspect-ratio: 1 / 1; }
    .media-caption { padding: 12px 15px; color: var(--muted); font-size: 13px; }
    .review-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 14px; }
    .review { padding: 20px; border: 1px solid var(--line); border-radius: 18px; background: rgba(255,255,255,.84); }
    .review p { margin-bottom: 15px; color: #43544d; font-size: 14px; }
    .review strong { display: block; color: var(--deep); font-size: 13px; }
    .review span { color: #738179; font-size: 12px; }
    .rating-layout { display: grid; grid-template-columns: .72fr 1.28fr; gap: 22px; align-items: start; }
    .rating-card { padding: 27px; border-radius: 22px; color: #f5fff6; background: linear-gradient(145deg,#123f36,#176d60); }
    .rating-card .score { margin: 4px 0 0; color: var(--green); font-size: 52px; font-weight: 850; line-height: 1; }
    .stars { margin: 11px 0; color: #d9ff70; letter-spacing: .16em; font-size: 20px; }
    .rating-card p { margin-bottom: 0; color: #d0e2d8; font-size: 13px; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 18px; background: #fff; }
    table { width: 100%; min-width: 590px; border-collapse: collapse; text-align: left; }
    th, td { padding: 14px 16px; border-bottom: 1px solid #edf0e9; vertical-align: top; font-size: 13px; }
    th { color: var(--deep); background: #eef5ed; font-size: 12px; }
    tr:last-child td { border-bottom: 0; }
    td:first-child { font-weight: 750; }
    .positive { color: #087b65; font-weight: 750; }
    .cost-note { margin: 11px 0 0; color: #758179; font-size: 12px; }
    .request-layout { display: grid; grid-template-columns: .78fr 1.22fr; gap: 25px; align-items: start; }
    .request-copy { padding: 28px; border-radius: 23px; background: #e9f4e5; }
    .request-copy h3 { margin-bottom: 11px; font-size: 24px; }
    .request-copy p { color: var(--muted); }
    .request-copy ul { margin: 0; padding-left: 19px; color: #42574e; font-size: 14px; }
    .form-panel { padding: 25px; border: 1px solid var(--line); border-radius: 22px; background: #fff; }
    .form-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 14px; }
    .field { display: grid; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    .field label { color: #30453c; font-size: 13px; font-weight: 700; }
    .field input, .field select, .field textarea { width: 100%; padding: 12px 13px; border: 1px solid #d9e2da; border-radius: 11px; outline: 0; color: var(--ink); background: #fbfcfa; }
    .field input:focus, .field select:focus, .field textarea:focus { border-color: var(--teal); box-shadow: 0 0 0 3px rgba(11,132,119,.1); }
    .field textarea { min-height: 112px; resize: vertical; }
    .form-submit { margin-top: 16px; }
    .faq-list { display: grid; gap: 9px; }
    .faq-list details { border: 1px solid var(--line); border-radius: 15px; background: #fff; }
    .faq-list summary { position: relative; padding: 16px 48px 16px 18px; color: #263c33; font-weight: 750; cursor: pointer; list-style: none; }
    .faq-list summary::-webkit-details-marker { display: none; }
    .faq-list summary::after { content: "+"; position: absolute; top: 50%; right: 18px; transform: translateY(-50%); color: var(--teal); font-size: 22px; font-weight: 500; }
    .faq-list details[open] summary::after { content: "−"; }
    .faq-answer { padding: 0 18px 16px; color: var(--muted); font-size: 14px; }
    .faq-answer p { margin: 0; }
    .knowledge-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
    .knowledge-card { padding: 25px; border-radius: 20px; background: #fff; border: 1px solid var(--line); }
    .knowledge-card h3 { margin-bottom: 12px; }
    .knowledge-card p { margin-bottom: 0; color: var(--muted); font-size: 14px; }
    .article-list { display: grid; gap: 8px; }
    .article-link { display: flex; align-items: center; justify-content: space-between; gap: 15px; padding: 13px 0; border-bottom: 1px solid #edf0e9; color: #315249; font-size: 14px; }
    .article-link:last-child { border-bottom: 0; }
    .article-link span:last-child { color: var(--teal); font-size: 18px; }
    .contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
    .contact-card { padding: 21px; border: 1px solid var(--line); border-radius: 17px; background: #fff; }
    .contact-card h3 { margin-bottom: 8px; font-size: 15px; }
    .contact-card p, .contact-card a { margin: 0; color: var(--muted); font-size: 14px; overflow-wrap: anywhere; }
    .qr { width: min(170px, 100%); margin-top: 12px; border-radius: 12px; }
    .partner-band { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 28px; border-radius: 22px; background: #e8e6fb; }
    .partner-band h3 { margin-bottom: 6px; font-size: 23px; }
    .partner-band p { margin: 0; color: #596276; }
    .links { display: flex; flex-wrap: wrap; gap: 9px 16px; }
    .links a { color: #426359; font-size: 13px; text-decoration: underline; text-decoration-color: #b6c9bd; text-underline-offset: 3px; }
    .site-footer { margin-top: 56px; padding: 28px 0; border-top: 1px solid var(--line); color: #52645b; background: #edf2eb; }
    .footer-row { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
    .footer-brand { color: var(--deep); font-weight: 800; }
    .footer-meta { display: flex; flex-wrap: wrap; gap: 7px 16px; font-size: 13px; }
    .footer-meta a { color: #405d52; }
    .floating-help { position: fixed; right: 18px; bottom: 20px; z-index: 15; }
    .floating-help a { display: grid; place-items: center; width: 52px; height: 52px; border: 1px solid #cde2d1; border-radius: 50%; color: var(--deep); background: var(--green); box-shadow: 0 8px 24px rgba(22,70,54,.18); font-size: 20px; transition: transform .2s ease; }
    .floating-help a:hover { transform: translateY(-3px); }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.is-visible { opacity: 1; transform: translateY(0); }
    @keyframes float-in { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
    @media (max-width: 980px) {
      .nav-wrap { gap: 8px; }
      .nav-links a { padding-inline: 7px; font-size: 12px; }
      .hero-grid { gap: 30px; }
      .service-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
    }
    @media (max-width: 760px) {
      .container { width: min(var(--container), calc(100% - 30px)); }
      .header-row { min-height: 66px; }
      .menu-toggle { display: inline-grid; place-items: center; flex: 0 0 auto; }
      .nav-wrap { position: relative; }
      .nav-links {
        display: none; position: absolute; top: 54px; right: 0; width: min(300px, calc(100vw - 30px));
        padding: 10px; border: 1px solid var(--line); border-radius: 16px; background: #fff; box-shadow: var(--shadow);
        flex-direction: column; align-items: stretch;
      }
      .nav-links.is-open { display: flex; }
      .nav-links a { padding: 10px 12px; font-size: 14px; }
      .nav-cta { display: none; }
      .hero { padding: 54px 0 30px; }
      .hero-grid, .about-grid, .industry-layout, .network-panel, .rating-layout, .request-layout, .knowledge-grid, .media-grid { grid-template-columns: 1fr; }
      .hero-visual { min-height: 310px; }
      .trust-row { align-items: flex-start; flex-direction: column; }
      .section { padding: 49px 0; }
      .step-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
      .review-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
      .partner-band { align-items: flex-start; flex-direction: column; }
      .footer-row { align-items: flex-start; flex-direction: column; }
    }
    @media (max-width: 520px) {
      h1 { font-size: 43px; }
      .brand-name { font-size: 15px; }
      .hero-copy { font-size: 15px; }
      .hero-visual { padding: 19px; border-radius: 27px; }
      .service-grid, .review-grid, .capability-list, .contact-grid, .form-grid { grid-template-columns: 1fr; }
      .step-grid { grid-template-columns: 1fr; }
      .field.full { grid-column: auto; }
      .workflow-band { padding: 20px; }
      .about-panel, .request-copy, .form-panel { padding: 21px; }
      .floating-help { right: 12px; bottom: 12px; }
    }
    @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; }
    }