:root {
      color-scheme: light;
      --ink: #18243b;
      --muted: #5d6b81;
      --line: #dfe6f1;
      --paper: #f7f9ff;
      --white: #fff;
      --blue: #3457e5;
      --cyan: #12a7bc;
      --coral: #ff785e;
      --lime: #d7ee75;
      --shadow: 0 14px 38px rgba(35, 58, 109, .09);
      --container: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 84px; }
    body {
      margin: 0;
      background: linear-gradient(180deg, #f8faff 0%, #f3f8ff 46%, #fbfcff 100%);
      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; }
    img { max-width: 100%; height: auto; }
    .container { width: min(var(--container), calc(100% - 40px)); margin-inline: auto; }
    .site-header { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.94); border-bottom: 1px solid rgba(220,228,241,.9); backdrop-filter: blur(14px); }
    .header-inner { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
    .brand { display: inline-flex; align-items: center; flex: 0 0 auto; }
    .brand img { display: block; width: 154px; max-height: 46px; object-fit: contain; }
    .nav-area { display: flex; align-items: center; gap: 18px; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; }
    .nav-links a { padding: 8px 9px; color: #42516b; font-size: 13px; white-space: nowrap; transition: color .2s ease; }
    .nav-links a:hover { color: var(--blue); }
    .nav-cta, .button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 0; border-radius: 6px; background: var(--blue); color: #fff; font-weight: 700; padding: 12px 18px; box-shadow: 0 8px 18px rgba(52,87,229,.2); transition: transform .2s, box-shadow .2s, background .2s; }
    .nav-cta { padding: 10px 15px; font-size: 13px; white-space: nowrap; }
    .button:hover, .nav-cta:hover { background: #2848ce; box-shadow: 0 11px 22px rgba(52,87,229,.26); transform: translateY(-2px); }
    .button.secondary { background: #fff; color: var(--ink); border: 1px solid var(--line); box-shadow: none; }
    .button.secondary:hover { border-color: #9eafe8; color: var(--blue); }
    .menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 6px; background: #fff; color: var(--ink); }
    .hero { position: relative; overflow: hidden; padding: 78px 0 44px; background: linear-gradient(120deg, #f8faff 5%, #edf4ff 53%, #fff4ee 100%); }
    .hero::before { content: ""; position: absolute; inset: auto -10% -140px 35%; height: 270px; background: linear-gradient(90deg, rgba(61,104,239,.12), rgba(21,183,188,.14), rgba(255,120,94,.13)); transform: rotate(-7deg); border-radius: 50%; filter: blur(2px); }
    .hero-inner { position: relative; display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(275px, .75fr); align-items: center; gap: 48px; }
    .eyebrow { display: inline-flex; align-items: center; gap: 9px; color: #3457c9; font-size: 13px; font-weight: 800; letter-spacing: .04em; }
    .eyebrow::before { content: ""; width: 24px; height: 2px; background: var(--coral); }
    h1 { max-width: 680px; margin: 17px 0 18px; font-size: clamp(38px, 5vw, 64px); line-height: 1.12; letter-spacing: 0; }
    .hero-copy { max-width: 640px; margin: 0; color: #4e5e76; font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
    .hero-note { margin-top: 16px; color: #6b7890; font-size: 13px; }
    .hero-panel { padding: 25px; border: 1px solid rgba(255,255,255,.9); border-radius: 10px; background: rgba(255,255,255,.74); box-shadow: var(--shadow); backdrop-filter: blur(8px); }
    .hero-panel-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-bottom: 16px; border-bottom: 1px solid var(--line); }
    .hero-panel-top strong { font-size: 15px; }
    .live-mark { display: inline-flex; align-items: center; gap: 7px; color: #38746d; font-size: 12px; }
    .live-mark::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: #28b997; box-shadow: 0 0 0 4px rgba(40,185,151,.13); }
    .workflow-line { position: relative; display: grid; gap: 0; margin-top: 16px; }
    .workflow-line::before { content: ""; position: absolute; top: 20px; bottom: 20px; left: 14px; width: 1px; background: #cfdaef; }
    .workflow-item { position: relative; display: grid; grid-template-columns: 29px 1fr; gap: 12px; align-items: start; padding: 8px 0; }
    .workflow-num { position: relative; z-index: 1; display: grid; place-items: center; width: 29px; height: 29px; border: 1px solid #cfd9f0; border-radius: 50%; background: #fff; color: var(--blue); font-size: 12px; font-weight: 800; }
    .workflow-item strong { display: block; font-size: 13px; }
    .workflow-item span:last-child { color: var(--muted); font-size: 12px; }
    .hero-stats { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; margin-top: 48px; border: 1px solid rgba(208,220,241,.8); border-radius: 8px; background: rgba(208,220,241,.8); overflow: hidden; }
    .stat { padding: 17px 20px; background: rgba(255,255,255,.85); }
    .stat strong { display: block; font-size: 21px; line-height: 1.2; }
    .stat span { display: block; margin-top: 5px; color: var(--muted); font-size: 12px; }
    main { overflow: clip; }
    .section { padding: 76px 0; }
    .section.soft { background: rgba(255,255,255,.58); border-block: 1px solid rgba(222,230,244,.75); }
    .section-head { display: flex; align-items: end; justify-content: space-between; gap: 28px; margin-bottom: 30px; }
    .section-head h2 { margin: 7px 0 0; font-size: clamp(27px, 3.3vw, 39px); line-height: 1.2; letter-spacing: 0; }
    .section-head p { max-width: 530px; margin: 0; color: var(--muted); }
    .kicker { color: #4767ce; font-size: 12px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
    .intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 46px; align-items: start; }
    .intro-copy p { margin: 0 0 14px; color: #4f5e74; }
    .intro-copy strong { color: var(--ink); }
    .capability-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .capability { padding: 17px; border-left: 3px solid var(--cyan); background: #fff; }
    .capability:nth-child(2n) { border-color: var(--coral); }
    .capability strong { display: block; margin-bottom: 4px; font-size: 14px; }
    .capability span { color: var(--muted); font-size: 12px; }
    .chips { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 24px; }
    .chip { padding: 7px 11px; border: 1px solid #dce4f2; border-radius: 4px; background: #fff; color: #43516b; font-size: 12px; }
    .service-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 13px; }
    .service-item { min-height: 155px; padding: 18px; border: 1px solid #e1e7f2; border-radius: 7px; background: #fff; transition: transform .22s, box-shadow .22s, border-color .22s; }
    .service-item:hover { transform: translateY(-4px); border-color: #b8c7f3; box-shadow: var(--shadow); }
    .service-item .service-index { color: #9aa8bf; font-size: 11px; font-weight: 800; }
    .service-item h3 { margin: 8px 0 6px; font-size: 16px; }
    .service-item p { margin: 0; color: var(--muted); font-size: 12px; }
    .text-link { display: inline-block; margin-top: 12px; color: var(--blue); font-size: 12px; font-weight: 700; }
    .showcase { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
    .showcase figure { margin: 0; overflow: hidden; border-radius: 7px; background: #e9eff9; }
    .showcase img { display: block; width: 100%; height: auto; object-fit: contain; }
    .showcase figcaption { padding: 12px 15px; background: #fff; color: #43516b; font-size: 13px; }
    .square-feature { display: grid; grid-template-columns: 220px 1fr; gap: 24px; align-items: center; margin-top: 20px; padding: 20px; border: 1px solid var(--line); background: #fff; }
    .square-feature img { display: block; width: 100%; aspect-ratio: 1; object-fit: contain; background: #f4f6fb; }
    .square-feature h3 { margin: 0 0 8px; }
    .square-feature p { margin: 0; color: var(--muted); }
    .steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid #ced9ed; }
    .step { position: relative; padding: 22px 18px 0 0; }
    .step::before { content: ""; position: absolute; top: -5px; left: 0; width: 9px; height: 9px; border-radius: 50%; background: var(--coral); box-shadow: 0 0 0 4px #fff; }
    .step small { color: #5670cf; font-weight: 800; }
    .step h3 { margin: 7px 0 5px; font-size: 16px; }
    .step p { margin: 0; color: var(--muted); font-size: 13px; }
    .solution-band { display: grid; grid-template-columns: 1fr 1.1fr; gap: 40px; align-items: center; padding: 28px 0; border-bottom: 1px solid var(--line); }
    .solution-band:last-child { border-bottom: 0; }
    .solution-band h3 { margin: 0 0 8px; font-size: 21px; }
    .solution-band p { margin: 0; color: var(--muted); }
    .solution-tags { display: flex; flex-wrap: wrap; gap: 8px; }
    .solution-tags span { padding: 7px 10px; background: #edf2ff; color: #3c56a9; font-size: 12px; }
    .network { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: center; }
    .network-copy p { color: var(--muted); }
    .network-list { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
    .network-list div { padding: 13px; border: 1px solid var(--line); background: #fff; font-size: 13px; }
    .network-list strong { display: block; margin-bottom: 3px; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 7px; background: #fff; }
    table { width: 100%; min-width: 760px; border-collapse: collapse; text-align: left; }
    th, td { padding: 14px 16px; border-bottom: 1px solid #e7ecf4; vertical-align: top; }
    th { background: #eef3ff; color: #26395f; font-size: 13px; }
    td { color: #526078; font-size: 13px; }
    tbody tr:last-child td { border-bottom: 0; }
    td:first-child { color: var(--ink); font-weight: 700; }
    .rating-strip { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 18px; padding: 20px 22px; border-left: 4px solid var(--coral); background: linear-gradient(100deg, #fff3ec, #fff 70%); }
    .rating-strip strong { font-size: 23px; }
    .rating-strip span { color: #a5583c; font-weight: 800; }
    .stars { color: #e18c22; letter-spacing: 2px; }
    .reviews { display: grid; grid-template-columns: repeat(3, 1fr); gap: 13px; }
    .review { padding: 18px; border-top: 2px solid #9bb1f2; background: #fff; }
    .review p { margin: 0 0 15px; color: #4e5e76; font-size: 13px; }
    .review strong { display: block; font-size: 13px; }
    .review span { color: #7a879a; font-size: 11px; }
    .case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .case { padding: 20px; background: #fff; border: 1px solid var(--line); border-radius: 6px; }
    .case-label { color: #4262cb; font-size: 11px; font-weight: 800; }
    .case h3 { margin: 7px 0; font-size: 17px; }
    .case p { margin: 0; color: var(--muted); font-size: 13px; }
    .match-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 40px; align-items: start; }
    .match-copy h2 { margin: 7px 0 12px; font-size: 34px; line-height: 1.2; }
    .match-copy p { color: var(--muted); }
    form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .field { display: grid; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    label { color: #43516b; font-size: 12px; font-weight: 700; }
    input, select, textarea { width: 100%; padding: 11px 12px; border: 1px solid #d9e1ef; border-radius: 5px; outline: none; background: #fff; color: var(--ink); }
    input:focus, select:focus, textarea:focus { border-color: #718be6; box-shadow: 0 0 0 3px rgba(52,87,229,.1); }
    textarea { min-height: 105px; resize: vertical; }
    .form-foot { display: flex; align-items: center; gap: 14px; grid-column: 1 / -1; }
    .form-foot small { color: #79869a; }
    .faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 18px; }
    details { border-bottom: 1px solid #dfe6f1; background: rgba(255,255,255,.68); }
    summary { position: relative; padding: 15px 35px 15px 2px; cursor: pointer; list-style: none; color: #26364f; font-weight: 700; font-size: 14px; }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; position: absolute; right: 5px; top: 12px; color: var(--blue); font-size: 20px; font-weight: 400; }
    details[open] summary::after { content: "−"; }
    details p { margin: 0; padding: 0 20px 15px 2px; color: var(--muted); font-size: 13px; }
    .article-links { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; }
    .article-links a { padding: 13px; border: 1px solid var(--line); background: #fff; color: #40516c; font-size: 12px; transition: border-color .2s, color .2s; }
    .article-links a:hover { border-color: #9bb0ee; color: var(--blue); }
    .contact-band { padding: 27px; background: linear-gradient(105deg, #eaf1ff, #e7f8f7 60%, #fff1ea); }
    .contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; align-items: center; }
    .contact-grid h2 { margin: 0 0 7px; font-size: 27px; }
    .contact-grid p { margin: 0; color: #526078; }
    .contact-details { display: flex; flex-wrap: wrap; gap: 10px 20px; margin-top: 15px; color: #35445c; font-size: 13px; }
    .qr-row { display: flex; align-items: center; gap: 16px; justify-content: flex-end; }
    .qr-row img { width: 112px; aspect-ratio: 1; object-fit: contain; border: 5px solid #fff; background: #fff; }
    .qr-row span { max-width: 150px; color: #53627a; font-size: 12px; }
    .footer { margin-top: 54px; padding: 27px 0 20px; background: #eef2f8; color: #26364f; border-top: 1px solid #dce3ef; }
    .footer-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 28px; }
    .footer-brand { max-width: 390px; }
    .footer-brand img { width: 145px; max-height: 43px; object-fit: contain; }
    .footer-brand p { margin: 10px 0 0; color: #5f6c80; font-size: 12px; }
    .footer-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px 17px; max-width: 600px; }
    .footer-links a { color: #475670; font-size: 12px; }
    .footer-links a:hover { color: var(--blue); }
    .footer-bottom { display: flex; justify-content: space-between; gap: 15px; margin-top: 21px; padding-top: 14px; border-top: 1px solid #d8e0ec; color: #68758a; font-size: 11px; }
    .float-actions { position: fixed; right: 18px; bottom: 20px; z-index: 15; display: grid; gap: 8px; }
    .float-actions a, .float-actions button { display: grid; place-items: center; width: 44px; height: 44px; border: 1px solid #dce4f1; border-radius: 50%; background: #fff; color: #34445f; box-shadow: 0 6px 18px rgba(30,48,84,.12); cursor: pointer; font-size: 11px; }
    .float-actions a:hover, .float-actions button:hover { color: var(--blue); border-color: #aebdf0; }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.visible { opacity: 1; transform: translateY(0); }
    @media (max-width: 1050px) {
      .nav-links { display: none; position: absolute; top: 72px; left: 0; right: 0; padding: 12px 20px 18px; align-items: stretch; flex-direction: column; background: #fff; border-bottom: 1px solid var(--line); box-shadow: 0 14px 22px rgba(30,48,84,.08); }
      .nav-links.open { display: flex; }
      .nav-links a { padding: 10px 4px; border-bottom: 1px solid #eef1f7; }
      .menu-toggle { display: inline-grid; place-items: center; }
      .nav-area { gap: 10px; }
    }
    @media (max-width: 760px) {
      .container { width: min(var(--container), calc(100% - 32px)); }
      .header-inner { min-height: 64px; }
      .brand img { width: 130px; }
      .nav-links { top: 64px; max-height: calc(100vh - 64px); overflow-y: auto; }
      .nav-cta { display: none; }
      .hero { padding: 54px 0 30px; }
      .hero-inner, .intro-grid, .network, .match-grid, .contact-grid { grid-template-columns: 1fr; gap: 27px; }
      .hero-inner { gap: 30px; }
      .hero-copy { font-size: 15px; }
      .hero-stats { grid-template-columns: 1fr 1fr; margin-top: 30px; }
      .stat { padding: 14px; }
      .section { padding: 55px 0; }
      .section-head { display: block; }
      .section-head p { margin-top: 12px; }
      .capability-grid { grid-template-columns: 1fr 1fr; }
      .service-grid { grid-template-columns: 1fr 1fr; }
      .showcase { grid-template-columns: 1fr; }
      .square-feature { grid-template-columns: 115px 1fr; gap: 15px; padding: 13px; }
      .steps { grid-template-columns: 1fr 1fr; row-gap: 24px; }
      .solution-band { grid-template-columns: 1fr; gap: 14px; }
      .network-list { grid-template-columns: 1fr 1fr; }
      .reviews, .case-grid { grid-template-columns: 1fr 1fr; }
      .faq-list { grid-template-columns: 1fr; gap: 0; }
      .article-links { grid-template-columns: 1fr 1fr; }
      .rating-strip { align-items: flex-start; flex-direction: column; gap: 5px; }
      .qr-row { justify-content: flex-start; }
      .footer-top, .footer-bottom { flex-direction: column; }
      .footer-links { justify-content: flex-start; }
      .form-foot { align-items: flex-start; flex-direction: column; }
    }
    @media (max-width: 460px) {
      .hero-panel { padding: 18px; }
      .capability-grid, .service-grid, .reviews, .case-grid { grid-template-columns: 1fr; }
      .service-item { min-height: auto; }
      .square-feature { grid-template-columns: 1fr; }
      .square-feature img { max-width: 180px; }
      form { grid-template-columns: 1fr; }
      .field.full, .form-foot { grid-column: auto; }
      .steps { grid-template-columns: 1fr; }
      .article-links { grid-template-columns: 1fr; }
    }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }