:root {
      color-scheme: light;
      --ink: #173536;
      --muted: #597271;
      --teal: #087f78;
      --teal-dark: #075e59;
      --mint: #dff4ef;
      --line: #d8e8e4;
      --paper: #f5fbfa;
      --white: #fff;
      --coral: #e7865d;
      --shadow: 0 16px 40px rgba(26, 83, 78, .09);
      --width: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      background: var(--paper);
      color: var(--ink);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.65;
    }
    a { color: inherit; }
    button, input, select, textarea { font: inherit; }
    img { max-width: 100%; height: auto; }
    .container { width: min(var(--width), calc(100% - 40px)); margin-inline: auto; }
    .topbar { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.94); border-bottom: 1px solid var(--line); backdrop-filter: blur(14px); }
    .nav-row { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
    .brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 800; white-space: nowrap; }
    .brand img { width: 38px; height: 38px; 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: #365957; text-decoration: none; font-size: 13px; white-space: nowrap; }
    .nav-links a:hover, .nav-links a:focus-visible { color: var(--teal); }
    .nav-links .nav-cta { margin-left: 8px; padding: 10px 16px; border-radius: 4px; background: var(--teal); color: white; font-weight: 700; }
    .menu-toggle { display: none; border: 1px solid var(--line); background: white; color: var(--ink); border-radius: 4px; padding: 8px 12px; cursor: pointer; }
    .hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--line); background: linear-gradient(125deg, #e5f7f1 0%, #f4fbf8 56%, #e4f1f7 100%); }
    .hero::before, .hero::after { content: ""; position: absolute; pointer-events: none; border: 1px solid rgba(8,127,120,.14); transform: rotate(30deg); }
    .hero::before { width: 430px; height: 430px; right: -100px; top: -235px; border-radius: 46%; }
    .hero::after { width: 300px; height: 300px; right: 90px; bottom: -235px; border-radius: 38%; }
    .hero-inner { position: relative; z-index: 1; padding-block: 72px 58px; }
    .hero-copy { max-width: 780px; animation: rise .65s ease both; }
    .eyebrow { display: inline-flex; align-items: center; gap: 9px; color: var(--teal-dark); font-size: 13px; font-weight: 800; letter-spacing: .06em; }
    .eyebrow::before { content: ""; width: 22px; height: 2px; background: var(--coral); }
    h1 { max-width: 720px; margin: 16px 0 16px; font-size: clamp(36px, 5vw, 58px); line-height: 1.15; letter-spacing: 0; }
    .hero-copy p { max-width: 680px; margin: 0; color: #486562; font-size: 17px; }
    .hero-actions { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
    .button { min-height: 46px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 1px solid transparent; border-radius: 4px; padding: 11px 19px; text-decoration: none; font-weight: 750; transition: transform .2s ease, background .2s ease, box-shadow .2s ease; cursor: pointer; }
    .button:hover { transform: translateY(-2px); }
    .button-primary { background: var(--teal); color: white; box-shadow: 0 8px 20px rgba(8,127,120,.18); }
    .button-primary:hover { background: var(--teal-dark); }
    .button-secondary { border-color: #9ccbc2; background: rgba(255,255,255,.65); color: var(--teal-dark); }
    .hero-note { margin-top: 17px; color: var(--muted); font-size: 13px; }
    .signal-row { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 42px; border-top: 1px solid rgba(8,127,120,.2); }
    .signal { padding: 19px 20px 4px 0; }
    .signal strong { display: block; font-size: 18px; }
    .signal span { color: var(--muted); font-size: 13px; }
    section { padding-block: 66px; scroll-margin-top: 84px; }
    .section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 27px; }
    .section-head > div { max-width: 700px; }
    .kicker { color: var(--teal); font-size: 12px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
    h2 { margin: 5px 0 0; font-size: 30px; line-height: 1.25; letter-spacing: 0; }
    .section-head p { max-width: 520px; margin: 0; color: var(--muted); }
    .intro-band { background: #fff; border-block: 1px solid var(--line); }
    .intro-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: start; }
    .intro-grid p { margin: 12px 0; color: #4c6764; }
    .intro-grid h2 { max-width: 500px; }
    .pill-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 21px; }
    .pill { display: inline-flex; padding: 6px 11px; border: 1px solid #cde5df; border-radius: 3px; background: #f5fbf9; color: #356762; font-size: 13px; }
    .intro-aside { padding-left: 23px; border-left: 3px solid var(--coral); }
    .intro-aside strong { display: block; margin-bottom: 7px; font-size: 17px; }
    .intro-aside p { margin: 0; }
    .services { background: linear-gradient(180deg, #f5fbfa, #edf7f5); }
    .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .service-item { padding: 20px; border: 1px solid var(--line); background: rgba(255,255,255,.84); transition: transform .2s ease, box-shadow .2s ease; }
    .service-item:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
    .service-item h3 { margin: 0 0 7px; font-size: 17px; }
    .service-item p { margin: 0; color: var(--muted); font-size: 14px; }
    .service-index { display: block; margin-bottom: 13px; color: var(--teal); font-size: 12px; font-weight: 800; }
    .platform-strip { margin-top: 24px; padding: 20px 22px; border-left: 3px solid var(--teal); background: white; }
    .platform-strip strong { display: block; margin-bottom: 10px; }
    .platform-names { color: #52706d; font-size: 14px; line-height: 2; }
    .process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-block: 1px solid var(--line); }
    .process-step { position: relative; padding: 24px 22px 24px 0; }
    .process-step:not(:last-child)::after { content: ""; position: absolute; width: 24px; height: 1px; top: 39px; right: 15px; background: var(--coral); }
    .step-number { display: inline-grid; width: 30px; height: 30px; place-items: center; border: 1px solid #9bcfc4; border-radius: 50%; color: var(--teal-dark); font-size: 13px; font-weight: 800; }
    .process-step h3 { margin: 12px 0 5px; font-size: 16px; }
    .process-step p { margin: 0; color: var(--muted); font-size: 14px; }
    .industry { background: #fff; border-block: 1px solid var(--line); }
    .industry-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0 25px; border-top: 1px solid var(--line); }
    .industry-item { padding: 17px 0; border-bottom: 1px solid var(--line); }
    .industry-item strong { display: block; margin-bottom: 5px; font-size: 15px; }
    .industry-item span { color: var(--muted); font-size: 13px; }
    .media-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
    .media-frame { overflow: hidden; border: 1px solid var(--line); background: white; }
    .media-frame img { display: block; width: 100%; height: auto; }
    .media-frame figcaption { padding: 12px 15px; color: var(--muted); font-size: 13px; }
    .square-media { width: min(300px, 100%); }
    .square-media img { display: block; width: 100%; aspect-ratio: 1; object-fit: contain; background: white; }
    .media-band { background: #eaf5f2; }
    .reviews { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .review { padding: 19px; border-top: 2px solid #69b8aa; background: white; }
    .review p { margin: 0 0 15px; color: #405d5a; font-size: 14px; }
    .review strong { display: block; font-size: 13px; }
    .review span { color: var(--muted); font-size: 12px; }
    .comparison { background: #fff; border-block: 1px solid var(--line); }
    .scoreline { display: flex; align-items: center; gap: 18px; margin: 0 0 22px; }
    .score { color: var(--teal-dark); font-size: 36px; font-weight: 850; line-height: 1; }
    .stars { color: #d67a45; font-size: 19px; letter-spacing: 0; }
    .score-caption { color: var(--muted); font-size: 13px; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); background: white; }
    table { width: 100%; min-width: 720px; border-collapse: collapse; text-align: left; }
    th, td { padding: 13px 15px; border-bottom: 1px solid var(--line); vertical-align: top; }
    th { background: #eaf6f2; color: #285b56; font-size: 13px; }
    td { color: #49625f; font-size: 14px; }
    tr:last-child td { border-bottom: 0; }
    .rating { color: var(--teal-dark); font-weight: 750; }
    .matching { display: grid; grid-template-columns: .8fr 1.2fr; gap: 40px; align-items: start; }
    .matching-copy p { color: var(--muted); }
    .match-points { margin: 20px 0 0; padding: 0; list-style: none; }
    .match-points li { padding: 8px 0; border-bottom: 1px solid var(--line); color: #47625f; }
    .match-points li::before { content: "＋"; margin-right: 9px; color: var(--teal); font-weight: 800; }
    .form-panel { padding: 23px; border: 1px solid var(--line); background: white; }
    .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: #365754; font-size: 13px; font-weight: 700; }
    .field input, .field select, .field textarea { width: 100%; min-width: 0; border: 1px solid #cbded9; border-radius: 3px; padding: 11px 12px; background: #fbfdfc; color: var(--ink); }
    .field textarea { min-height: 108px; resize: vertical; }
    .field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid rgba(8,127,120,.2); border-color: var(--teal); }
    .form-submit { margin-top: 15px; }
    .faq-section { background: #edf7f5; }
    .faq-list { border-top: 1px solid #cfe2dd; }
    details { border-bottom: 1px solid #cfe2dd; }
    summary { position: relative; padding: 16px 38px 16px 0; font-weight: 750; cursor: pointer; list-style: none; }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; position: absolute; right: 3px; top: 13px; color: var(--teal); font-size: 22px; font-weight: 400; }
    details[open] summary::after { content: "−"; }
    details p { max-width: 850px; margin: -2px 35px 17px 0; color: var(--muted); font-size: 14px; }
    .knowledge-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 38px; }
    .knowledge-list { border-top: 1px solid var(--line); }
    .knowledge-list a { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 14px 0; border-bottom: 1px solid var(--line); text-decoration: none; }
    .knowledge-list a:hover { color: var(--teal); }
    .knowledge-list span { color: var(--muted); font-size: 12px; white-space: nowrap; }
    .article-links { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px 18px; }
    .article-links a { padding: 12px 0; border-bottom: 1px solid var(--line); color: #365957; font-size: 14px; text-decoration: none; }
    .article-links a:hover { color: var(--teal); }
    .contact-band { background: linear-gradient(120deg, #dff3ed, #eaf4f7); border-block: 1px solid var(--line); }
    .contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; align-items: center; }
    .contact-links { display: flex; flex-wrap: wrap; gap: 10px 18px; margin-top: 19px; }
    .contact-links a { color: var(--teal-dark); font-weight: 700; text-decoration: none; }
    .contact-links a:hover { text-decoration: underline; }
    .contact-meta { color: var(--muted); font-size: 14px; }
    .footer { background: #e5f0ed; color: #294c49; padding: 27px 0; }
    .footer-row { display: flex; justify-content: space-between; align-items: start; gap: 24px; }
    .footer-brand { font-weight: 800; }
    .footer p { margin: 5px 0 0; color: #55716e; font-size: 13px; }
    .friend-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px 15px; }
    .friend-links a { color: #3f625e; font-size: 13px; text-decoration: none; }
    .friend-links a:hover { color: var(--teal-dark); text-decoration: underline; }
    .floating { position: fixed; z-index: 18; right: 18px; bottom: 18px; display: grid; gap: 8px; }
    .floating a { display: grid; width: 48px; height: 48px; place-items: center; border: 1px solid #c6ded8; border-radius: 50%; background: white; color: var(--teal-dark); text-decoration: none; font-size: 12px; font-weight: 800; box-shadow: 0 5px 18px rgba(24,72,68,.12); }
    .floating a:hover { background: var(--teal); color: white; }
    .reveal { opacity: 0; transform: translateY(12px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.visible { opacity: 1; transform: none; }
    @keyframes rise { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
    @media (max-width: 980px) {
      .nav-row { gap: 12px; }
      .nav-links a { padding-inline: 7px; font-size: 12px; }
      .nav-links .nav-cta { margin-left: 3px; padding-inline: 11px; }
      .service-grid { grid-template-columns: repeat(2, 1fr); }
      .industry-list { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 760px) {
      .container { width: min(var(--width), calc(100% - 32px)); }
      .nav-row { min-height: 64px; }
      .menu-toggle { display: inline-flex; align-items: center; gap: 7px; }
      .nav-links { display: none; position: absolute; top: 64px; left: 0; right: 0; align-items: stretch; padding: 10px 16px 16px; border-bottom: 1px solid var(--line); background: white; box-shadow: 0 12px 20px rgba(22,70,66,.08); }
      .nav-links.open { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
      .nav-links a { padding: 9px; font-size: 13px; }
      .nav-links .nav-cta { margin: 4px 0 0; text-align: center; }
      .hero-inner { padding-block: 53px 40px; }
      h1 { font-size: 39px; }
      .hero-copy p { font-size: 15px; }
      .signal-row { grid-template-columns: repeat(2, 1fr); margin-top: 29px; }
      .signal { padding: 15px 10px 5px 0; }
      section { padding-block: 48px; }
      .section-head { display: block; }
      .section-head p { margin-top: 12px; }
      .intro-grid, .matching, .knowledge-grid, .contact-grid { grid-template-columns: 1fr; gap: 24px; }
      .intro-aside { padding-left: 16px; }
      .process-grid { grid-template-columns: repeat(2, 1fr); }
      .process-step:nth-child(2)::after { display: none; }
      .reviews { grid-template-columns: repeat(2, 1fr); }
      .media-grid { grid-template-columns: 1fr; }
      .footer-row { display: grid; }
      .friend-links { justify-content: flex-start; }
    }
    @media (max-width: 520px) {
      .service-grid, .industry-list, .reviews, .process-grid, .form-grid, .article-links { grid-template-columns: 1fr; }
      .field.full { grid-column: auto; }
      .process-step { padding-right: 0; }
      .process-step::after { display: none; }
      h2 { font-size: 26px; }
      .hero-actions .button { width: 100%; }
      .scoreline { flex-wrap: wrap; }
      .form-panel { padding: 17px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }