:root {
      --ink: #172033;
      --muted: #667085;
      --paper: #fffaf5;
      --white: #ffffff;
      --orange: #ff6b35;
      --yellow: #ffd166;
      --cyan: #26c6c8;
      --blue: #3155d9;
      --pink: #ef4f8a;
      --line: #eadfd6;
      --soft: #fff0e8;
      --shadow: 0 18px 45px rgba(42, 39, 67, .1);
      --container: 1180px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--paper);
      font-family: "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
      line-height: 1.7;
    }
    a { color: inherit; text-decoration: none; }
    img { max-width: 100%; height: auto; display: block; }
    .container { width: min(var(--container), calc(100% - 40px)); margin: 0 auto; }
    .topbar {
      position: sticky; top: 0; z-index: 20;
      background: rgba(255,250,245,.94);
      border-bottom: 1px solid rgba(234,223,214,.9);
      backdrop-filter: blur(12px);
    }
    .nav {
      min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 22px;
    }
    .brand { display: inline-flex; align-items: center; flex-shrink: 0; }
    .brand img { width: 138px; max-height: 44px; object-fit: contain; }
    .nav-links { display: flex; align-items: center; gap: 0; flex-wrap: wrap; justify-content: flex-end; }
    .nav-links a { font-size: 14px; padding: 8px 9px; color: #485066; transition: color .2s ease; }
    .nav-links a:hover { color: var(--orange); }
    .nav-cta, .button {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      border: 0; border-radius: 8px; padding: 12px 19px; font-weight: 700; cursor: pointer;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
    }
    .nav-cta { background: var(--ink); color: #fff; white-space: nowrap; }
    .button:hover, .nav-cta:hover { transform: translateY(-2px); box-shadow: 0 10px 22px rgba(23,32,51,.18); }
    .button-primary { background: var(--orange); color: #fff; }
    .button-dark { background: var(--ink); color: #fff; }
    .button-light { background: #fff; color: var(--ink); border: 1px solid var(--line); }
    .menu-toggle { display: none; background: none; border: 1px solid var(--line); border-radius: 7px; padding: 8px 11px; color: var(--ink); font-size: 20px; }
    .hero {
      position: relative; overflow: hidden; padding: 92px 0 76px;
      background: linear-gradient(135deg, #fffaf5 0%, #fff1e8 58%, #e8fbf8 100%);
    }
    .hero:before, .hero:after {
      content: ""; position: absolute; border-radius: 50%; pointer-events: none;
    }
    .hero:before { width: 320px; height: 320px; right: -120px; top: -130px; background: rgba(255,209,102,.5); }
    .hero:after { width: 190px; height: 190px; left: 44%; bottom: -105px; background: rgba(38,198,200,.22); }
    .hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.08fr .92fr; gap: 56px; align-items: center; }
    .eyebrow, .section-kicker {
      color: var(--orange); font-weight: 800; letter-spacing: 1px; font-size: 13px; text-transform: uppercase;
    }
    h1, h2, h3, p { margin-top: 0; }
    h1 { max-width: 680px; font-size: clamp(38px, 5vw, 68px); line-height: 1.12; letter-spacing: 0; margin: 14px 0 22px; }
    .hero-copy { max-width: 650px; color: #4d586a; font-size: 18px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 30px 0 32px; }
    .proof-row { display: flex; flex-wrap: wrap; gap: 22px; color: #5d6575; font-size: 14px; }
    .proof-row strong { display: block; color: var(--ink); font-size: 21px; }
    .hero-panel { position: relative; background: var(--ink); color: #fff; padding: 28px; border-radius: 20px; box-shadow: var(--shadow); overflow: hidden; }
    .hero-panel:after { content: ""; position: absolute; width: 130px; height: 130px; right: -25px; bottom: -34px; background: var(--pink); border-radius: 50%; opacity: .85; }
    .hero-panel h2 { font-size: 24px; margin-bottom: 8px; }
    .hero-panel p { color: #d7dcea; margin-bottom: 22px; }
    .signal-list { display: grid; gap: 12px; position: relative; z-index: 1; }
    .signal { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 13px 15px; border: 1px solid rgba(255,255,255,.16); border-radius: 10px; background: rgba(255,255,255,.08); }
    .signal b { color: var(--yellow); }
    section { padding: 84px 0; }
    .section-head { display: flex; justify-content: space-between; align-items: end; gap: 30px; margin-bottom: 34px; }
    .section-head h2 { font-size: clamp(28px, 4vw, 44px); line-height: 1.2; margin: 8px 0 0; }
    .section-head p { max-width: 550px; color: var(--muted); margin-bottom: 0; }
    .intro { background: #fff; }
    .intro-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 46px; align-items: start; }
    .intro h3 { font-size: 25px; margin-bottom: 12px; }
    .highlight-box { padding: 26px; background: var(--soft); border-left: 5px solid var(--orange); border-radius: 0 12px 12px 0; }
    .highlight-box strong { color: var(--orange); }
    .metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 32px; }
    .metric { padding: 22px; background: #fff; border: 1px solid var(--line); border-top: 4px solid var(--cyan); border-radius: 10px; }
    .metric:nth-child(2) { border-top-color: var(--pink); }
    .metric:nth-child(3) { border-top-color: var(--yellow); }
    .metric:nth-child(4) { border-top-color: var(--blue); }
    .metric strong { display: block; font-size: 30px; line-height: 1; margin-bottom: 8px; }
    .metric span { color: var(--muted); font-size: 14px; }
    .services { background: #f6fbfa; }
    .service-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
    .service { background: #fff; padding: 22px; border: 1px solid #dcecea; border-radius: 12px; transition: transform .25s ease, box-shadow .25s ease; }
    .service:hover, .review:hover, .case:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
    .service-mark { width: 38px; height: 38px; display: grid; place-items: center; background: var(--yellow); border-radius: 9px; font-weight: 800; margin-bottom: 16px; }
    .service:nth-child(2n) .service-mark { background: #c9f4ee; }
    .service:nth-child(3n) .service-mark { background: #ffd2df; }
    .service h3 { margin-bottom: 8px; font-size: 19px; }
    .service p { color: var(--muted); font-size: 14px; margin-bottom: 0; }
    .workflow { background: #fff; }
    .steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; border-top: 2px solid var(--ink); }
    .step { position: relative; padding: 28px 18px 10px 0; margin-right: 20px; }
    .step:before { content: ""; position: absolute; top: -9px; left: 0; width: 15px; height: 15px; border-radius: 50%; background: var(--orange); border: 4px solid #fff; }
    .step strong { display: block; color: var(--orange); font-size: 14px; margin-bottom: 8px; }
    .step h3 { font-size: 18px; margin-bottom: 8px; }
    .step p { color: var(--muted); font-size: 14px; }
    .solution-band { background: var(--blue); color: #fff; }
    .solution-band .section-kicker { color: var(--yellow); }
    .solution-band .section-head p { color: #dce3ff; }
    .solution-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
    .solution { padding: 24px; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.25); border-radius: 12px; }
    .solution h3 { font-size: 20px; margin-bottom: 8px; }
    .solution p { color: #e3e8ff; font-size: 14px; margin-bottom: 0; }
    .network { background: #fff7ec; }
    .tag-cloud { display: flex; flex-wrap: wrap; gap: 10px; }
    .tag { display: inline-flex; padding: 9px 13px; background: #fff; border: 1px solid var(--line); border-radius: 7px; color: #485066; font-size: 14px; }
    .tag:nth-child(3n) { border-color: #f6b4c9; }
    .tag:nth-child(4n) { border-color: #9cddd7; }
    .pricing { display: grid; grid-template-columns: .85fr 1.15fr; gap: 30px; align-items: stretch; margin-top: 34px; }
    .price-note { padding: 28px; background: var(--ink); color: #fff; border-radius: 14px; }
    .price-note h3 { color: var(--yellow); font-size: 27px; }
    .price-note p { color: #d8ddea; }
    .price-note strong { font-size: 42px; color: #fff; display: block; }
    .table-wrap { overflow-x: auto; background: #fff; border: 1px solid var(--line); border-radius: 12px; }
    table { width: 100%; border-collapse: collapse; min-width: 680px; }
    th, td { text-align: left; padding: 15px 17px; border-bottom: 1px solid var(--line); font-size: 14px; }
    th { background: #fff1e8; color: var(--ink); }
    tr:last-child td { border-bottom: 0; }
    .check { color: #139c83; font-weight: 800; }
    .case-grid, .review-grid, .article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
    .case, .review { background: #fff; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; transition: transform .25s ease, box-shadow .25s ease; }
    .case img { width: 100%; aspect-ratio: 16 / 8; object-fit: cover; }
    .case-body, .review-body { padding: 20px; }
    .case h3, .review h3 { font-size: 19px; margin-bottom: 7px; }
    .case p, .review p { color: var(--muted); font-size: 14px; margin-bottom: 0; }
    .case-label { color: var(--orange); font-size: 13px; font-weight: 800; }
    .rating { color: #ee9b00; letter-spacing: 2px; margin-bottom: 10px; }
    .review-meta { display: block; margin-top: 16px; font-size: 13px; color: #8a91a0; }
    .review-grid { grid-template-columns: repeat(3, 1fr); }
    .match { background: #e8fbf8; }
    .match-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 40px; align-items: start; }
    .match-points { display: grid; gap: 12px; }
    .match-point { background: #fff; padding: 16px 18px; border-left: 4px solid var(--cyan); border-radius: 7px; }
    form { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; padding: 25px; background: #fff; border: 1px solid #cfe9e5; border-radius: 12px; box-shadow: 0 12px 28px rgba(38,198,200,.1); }
    label { display: grid; gap: 7px; color: #465166; font-size: 14px; font-weight: 700; }
    input, select, textarea { width: 100%; border: 1px solid #d7dfe5; border-radius: 7px; padding: 12px 13px; font: inherit; color: var(--ink); background: #fff; }
    textarea { min-height: 120px; resize: vertical; }
    .full { grid-column: 1 / -1; }
    .faq { background: #fff; }
    .faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 30px; }
    details { border-bottom: 1px solid var(--line); padding: 16px 0; }
    summary { cursor: pointer; font-weight: 700; padding-right: 20px; }
    details p { color: var(--muted); font-size: 14px; margin: 10px 0 0; }
    .articles { background: #fff7ec; }
    .article { padding: 20px; border: 1px solid var(--line); background: #fff; border-radius: 10px; }
    .article small { color: var(--orange); font-weight: 700; }
    .article h3 { font-size: 18px; margin: 9px 0 8px; }
    .article p { color: var(--muted); font-size: 14px; margin-bottom: 14px; }
    .article a { color: var(--blue); font-weight: 700; font-size: 14px; }
    .contact { background: var(--pink); color: #fff; }
    .contact .section-kicker { color: var(--yellow); }
    .contact .section-head p { color: #ffe8f0; }
    .contact-grid { display: grid; grid-template-columns: 1fr .9fr; gap: 40px; align-items: center; }
    .contact-list { display: grid; gap: 12px; }
    .contact-item { display: flex; gap: 12px; align-items: center; padding: 13px 0; border-bottom: 1px solid rgba(255,255,255,.28); }
    .contact-item b { min-width: 90px; color: var(--yellow); }
    .qr { background: #fff; border-radius: 12px; padding: 18px; max-width: 210px; color: var(--ink); }
    .qr img { width: 170px; margin: 0 auto 10px; }
    footer { background: var(--ink); color: #d7dcea; padding: 46px 0 24px; }
    .footer-grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 30px; }
    footer h3 { color: #fff; font-size: 17px; margin-bottom: 12px; }
    footer p { font-size: 14px; color: #aeb8ca; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 8px 15px; }
    .footer-links a { font-size: 14px; color: #d7dcea; }
    .footer-links a:hover { color: var(--yellow); }
    .copyright { border-top: 1px solid #354057; padding-top: 18px; margin-top: 30px; font-size: 13px; color: #9ca8bc; }
    .float-contact { position: fixed; right: 20px; bottom: 22px; z-index: 15; background: var(--orange); color: #fff; padding: 13px 16px; border-radius: 24px; box-shadow: 0 10px 25px rgba(255,107,53,.3); font-weight: 700; }
    .reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
    .reveal.visible { opacity: 1; transform: translateY(0); }
    @media (max-width: 980px) {
      .nav-links { display: none; position: absolute; top: 76px; left: 20px; right: 20px; padding: 12px; background: #fffaf5; border: 1px solid var(--line); border-radius: 10px; box-shadow: var(--shadow); }
      .nav-links.open { display: grid; grid-template-columns: repeat(2, 1fr); }
      .nav-links a { padding: 10px; }
      .menu-toggle { display: block; }
      .hero-grid, .intro-grid, .pricing, .match-grid, .contact-grid { grid-template-columns: 1fr; }
      .service-grid { grid-template-columns: repeat(2, 1fr); }
      .steps { grid-template-columns: repeat(3, 1fr); row-gap: 10px; }
      .metrics { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 680px) {
      .container { width: min(var(--container), calc(100% - 28px)); }
      .nav { min-height: 68px; }
      .brand img { width: 118px; }
      .nav-cta { padding: 10px 12px; font-size: 13px; }
      .hero { padding: 62px 0 56px; }
      h1 { font-size: 42px; }
      .hero-copy { font-size: 16px; }
      section { padding: 60px 0; }
      .section-head { display: block; }
      .section-head p { margin-top: 14px; }
      .service-grid, .solution-grid, .case-grid, .review-grid, .article-grid, .faq-list, .footer-grid { grid-template-columns: 1fr; }
      .steps { grid-template-columns: 1fr; border-top: 0; border-left: 2px solid var(--ink); padding-left: 20px; }
      .step { padding: 0 0 24px; margin: 0; }
      .step:before { top: 2px; left: -29px; }
      form { grid-template-columns: 1fr; }
      .full { grid-column: auto; }
      .float-contact { right: 12px; bottom: 14px; font-size: 13px; }
    }