:root {
      color-scheme: light;
      --ink: #20231f;
      --muted: #62675f;
      --paper: #f8f8f6;
      --white: #fff;
      --line: #dedfd8;
      --green: #c9f35a;
      --coral: #ff684d;
      --blue: #4975ef;
      --dark: #20231f;
      --container: 1180px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      background: var(--paper);
      color: var(--ink);
      font-family: Inter, "PingFang SC", "Microsoft YaHei", 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 { border-bottom: 1px solid var(--line); background: var(--paper); }
    .nav-wrap { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
    .brand { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; font-weight: 800; }
    .brand img { display: block; width: 132px; 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: 8px 10px; color: #454940; font-size: 13px; }
    .nav-links a:hover { color: #bd432f; }
    .nav-cta, .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; transition: transform .2s, background .2s, color .2s; }
    .nav-cta:hover, .button:hover { transform: translateY(-2px); background: var(--coral); border-color: var(--coral); color: var(--ink); }
    .menu-toggle { display: none; border: 1px solid var(--line); background: var(--white); color: var(--ink); width: 44px; height: 44px; }
    .hero { position: relative; overflow: hidden; padding: 72px 0 48px; background: var(--green); }
    .hero::after { content: ""; position: absolute; right: max(4%, calc((100vw - var(--container))/2)); top: 40px; width: 180px; height: 180px; border: 1px solid rgba(32,35,31,.2); border-radius: 50%; box-shadow: 0 0 0 22px rgba(255,255,255,.12), 0 0 0 44px rgba(255,255,255,.1); pointer-events: none; }
    .hero-inner { position: relative; z-index: 1; }
    .eyebrow { margin: 0 0 14px; font-size: 12px; font-weight: 800; letter-spacing: 1.5px; text-transform: uppercase; }
    h1 { max-width: 760px; margin: 0; font-size: clamp(40px, 7vw, 76px); line-height: 1.06; letter-spacing: 0; }
    .hero-copy { max-width: 650px; margin: 22px 0 28px; color: #34392f; font-size: 18px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
    .button-light { background: transparent; color: var(--ink); }
    .hero-note { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 34px; font-size: 13px; font-weight: 700; }
    .hero-note span::before { content: "＋"; margin-right: 7px; }
    .hero-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; margin-top: 50px; border: 1px solid rgba(32,35,31,.22); background: rgba(32,35,31,.22); }
    .metric { padding: 18px 20px; background: var(--green); }
    .metric strong { display: block; font-size: 17px; }
    .metric span { font-size: 12px; color: #454940; }
    .section { padding: 76px 0; }
    .section-tint { background: #eeefea; }
    .section-dark { background: var(--dark); color: var(--white); }
    .section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 30px; }
    .section-head h2 { max-width: 650px; margin: 0; font-size: clamp(28px, 4vw, 42px); line-height: 1.15; }
    .section-head p { max-width: 430px; margin: 0; color: var(--muted); }
    .section-dark .section-head p { color: #c8cbc3; }
    .kicker { margin: 0 0 10px; color: #bd432f; font-size: 12px; font-weight: 800; letter-spacing: 1px; }
    .intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
    .intro-grid h2 { margin: 0 0 18px; font-size: 36px; line-height: 1.2; }
    .intro-grid p { color: var(--muted); }
    .highlight-line { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 22px; }
    .tag { padding: 7px 11px; border: 1px solid var(--line); background: var(--white); font-size: 13px; }
    .capability-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .capability { min-height: 170px; padding: 22px; border-top: 3px solid var(--coral); background: var(--white); transition: transform .2s, box-shadow .2s; }
    .capability:nth-child(3n+2) { border-color: var(--blue); }
    .capability:nth-child(3n) { border-color: #9ac72a; }
    .capability:hover, .quote:hover, .case:hover { transform: translateY(-3px); box-shadow: 0 12px 26px rgba(32,35,31,.08); }
    .capability h3, .case h3 { margin: 0 0 8px; font-size: 18px; }
    .capability p, .case p { margin: 0; color: var(--muted); font-size: 14px; }
    .flow { display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--line); }
    .flow-step { padding: 22px 18px 8px 0; }
    .flow-step b { display: block; margin-bottom: 9px; color: #bd432f; font-size: 13px; }
    .flow-step h3 { margin: 0 0 6px; font-size: 17px; }
    .flow-step p { margin: 0; color: var(--muted); font-size: 13px; }
    .industry-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
    .industry { padding: 17px; border: 1px solid var(--line); background: var(--paper); }
    .industry strong { display: block; margin-bottom: 5px; }
    .industry span { color: var(--muted); font-size: 13px; }
    .network { display: flex; flex-wrap: wrap; gap: 9px; }
    .network span { padding: 9px 13px; border: 1px solid #565b52; color: #f2f4ec; font-size: 13px; }
    .comparison { width: 100%; border-collapse: collapse; background: var(--white); color: var(--ink); }
    .comparison th, .comparison td { padding: 15px 16px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
    .comparison th { background: #e9ebdf; font-size: 13px; }
    .comparison td { font-size: 14px; }
    .comparison td:nth-child(2) { font-weight: 700; }
    .table-scroll { overflow-x: auto; }
    .score-panel { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 22px; padding: 22px 26px; background: var(--coral); color: var(--ink); }
    .score-panel strong { font-size: 36px; line-height: 1; }
    .score-panel span { display: block; font-size: 13px; }
    .stars { color: #20231f; letter-spacing: 2px; font-size: 20px; }
    .split { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
    .split h2 { margin: 0 0 14px; font-size: 34px; line-height: 1.2; }
    .plain-list { margin: 18px 0 0; padding-left: 20px; color: var(--muted); }
    .plain-list li { margin: 9px 0; }
    .reference-box { padding: 23px; background: var(--green); }
    .reference-box h3 { margin: 0 0 8px; }
    .reference-box p { margin: 0 0 16px; }
    .reference-box .button { background: var(--ink); color: var(--white); }
    .reviews { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .quote { padding: 21px; background: var(--white); border: 1px solid var(--line); transition: transform .2s, box-shadow .2s; }
    .quote p { margin: 0 0 18px; color: #42463f; font-size: 14px; }
    .quote strong { display: block; font-size: 13px; }
    .quote span { color: var(--muted); font-size: 12px; }
    .case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 15px; }
    .case { padding: 16px; background: var(--white); transition: transform .2s, box-shadow .2s; }
    .case-media { margin-bottom: 15px; overflow: hidden; background: #e9e9e4; }
    .case-media img { display: block; width: 100%; height: auto; aspect-ratio: 16/9; object-fit: cover; }
    .case-square img { aspect-ratio: 1; object-fit: cover; }
    .article-links { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 28px; border-top: 1px solid var(--line); }
    .article-links a { display: flex; justify-content: space-between; gap: 16px; padding: 15px 0; border-bottom: 1px solid var(--line); }
    .article-links a span:last-child { color: #bd432f; }
    .faq-list { border-top: 1px solid var(--line); }
    .faq-item { border-bottom: 1px solid var(--line); }
    .faq-item summary { padding: 17px 34px 17px 0; cursor: pointer; list-style: none; font-weight: 700; position: relative; }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary::after { content: "+"; position: absolute; right: 4px; top: 12px; font-size: 22px; font-weight: 400; }
    .faq-item[open] summary::after { content: "−"; }
    .faq-item p { max-width: 850px; margin: 0 0 18px; color: var(--muted); }
    .contact-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 48px; align-items: start; }
    .contact-info h2 { margin: 0 0 14px; font-size: 36px; line-height: 1.2; }
    .contact-info p { color: var(--muted); }
    .contact-list { margin-top: 22px; }
    .contact-list p { margin: 8px 0; }
    .contact-list a { text-decoration: underline; text-underline-offset: 3px; }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .field { display: flex; flex-direction: column; gap: 6px; }
    .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: 10px 12px; border: 1px solid #c9cbc3; border-radius: 0; background: var(--white); color: var(--ink); }
    .field textarea { min-height: 120px; resize: vertical; }
    .form-submit { margin-top: 15px; cursor: pointer; }
    .footer { padding: 28px 0; background: #e9ebe5; color: var(--ink); }
    .footer-top { display: flex; justify-content: space-between; gap: 28px; align-items: start; }
    .footer p { margin: 7px 0; color: #4f544c; font-size: 13px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: 13px; }
    .footer-links a { text-decoration: underline; text-underline-offset: 3px; }
    .copyright { margin-top: 20px; padding-top: 14px; border-top: 1px solid #cfd1ca; color: #555a52; font-size: 12px; }
    .float-contact { position: fixed; right: 18px; bottom: 20px; z-index: 20; display: flex; flex-direction: column; gap: 8px; }
    .float-contact a { display: grid; place-items: center; width: 48px; height: 48px; border: 1px solid var(--ink); background: var(--green); color: var(--ink); font-size: 12px; font-weight: 800; box-shadow: 3px 3px 0 var(--ink); }
    .float-contact a:hover { transform: translateY(-2px); background: var(--coral); }
    .reveal { opacity: 0; transform: translateY(12px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.visible { opacity: 1; transform: translateY(0); }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }
    @media (max-width: 960px) {
      .nav-wrap { flex-wrap: wrap; padding: 12px 0; }
      .menu-toggle { display: inline-grid; place-items: center; margin-left: auto; }
      .nav-cta { display: none; }
      .nav-links { display: none; width: 100%; justify-content: flex-start; padding: 4px 0 8px; }
      .nav-links.open { display: flex; }
      .hero::after { right: 18px; width: 120px; height: 120px; }
      .hero-strip { grid-template-columns: repeat(2, 1fr); }
      .industry-grid { grid-template-columns: repeat(2, 1fr); }
      .flow { grid-template-columns: repeat(3, 1fr); }
    }
    @media (max-width: 640px) {
      .container { width: min(var(--container), calc(100% - 28px)); }
      .nav-links a { padding: 8px; }
      .brand img { width: 115px; }
      .hero { padding: 54px 0 32px; }
      .hero::after { top: 18px; right: -44px; width: 105px; height: 105px; }
      .hero-copy { font-size: 16px; }
      .hero-strip { margin-top: 34px; }
      .metric { padding: 14px; }
      .section { padding: 54px 0; }
      .section-head, .footer-top { display: block; }
      .section-head p { margin-top: 13px; }
      .intro-grid, .split, .contact-grid { grid-template-columns: 1fr; gap: 24px; }
      .capability-grid, .reviews, .case-grid { grid-template-columns: 1fr; }
      .capability { min-height: 0; }
      .flow { grid-template-columns: 1fr 1fr; }
      .flow-step { padding-right: 12px; }
      .score-panel { align-items: flex-start; flex-direction: column; }
      .article-links { grid-template-columns: 1fr; }
      .form-grid { grid-template-columns: 1fr; }
      .field-full { grid-column: auto; }
      .footer-links { margin-top: 18px; }
      .float-contact { right: 10px; bottom: 12px; }
      .float-contact a { width: 44px; height: 44px; }
    }