:root {
      color-scheme: light;
      --ink: #19212e;
      --muted: #5e6878;
      --line: #e4e8ef;
      --paper: #f7f8fb;
      --white: #fff;
      --coral: #f15b4a;
      --coral-dark: #d84638;
      --blue: #2355cc;
      --mint: #dff5e9;
      --lime: #d7f05c;
      --navy: #172745;
      --max: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 90px; }
    body { margin: 0; background: var(--paper); color: var(--ink); font-family: "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 { display: block; max-width: 100%; height: auto; }
    .container { width: min(var(--max), calc(100% - 40px)); margin-inline: auto; }
    .site-header { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.96); border-bottom: 1px solid var(--line); backdrop-filter: blur(12px); }
    .header-inner { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
    .brand { display: inline-flex; align-items: center; flex: 0 0 auto; }
    .brand img { width: 142px; max-height: 48px; object-fit: contain; }
    .nav { display: flex; align-items: center; justify-content: flex-end; gap: 0; min-width: 0; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; min-width: 0; }
    .nav-links a { padding: 9px 8px; color: #354052; font-size: 12px; white-space: nowrap; transition: color .2s ease; }
    .nav-links a:hover { color: var(--coral-dark); }
    .header-cta, .button { display: inline-flex; justify-content: center; align-items: center; gap: 8px; min-height: 44px; padding: 0 18px; border: 0; border-radius: 5px; background: var(--coral); color: #fff; font-weight: 700; transition: transform .2s ease, background .2s ease, box-shadow .2s ease; }
    .header-cta { margin-left: 14px; min-height: 40px; font-size: 14px; white-space: nowrap; }
    .header-cta:hover, .button:hover { transform: translateY(-2px); background: var(--coral-dark); box-shadow: 0 8px 20px rgba(216,70,56,.2); }
    .menu-toggle { display: none; border: 1px solid var(--line); background: white; color: var(--ink); border-radius: 5px; padding: 8px 11px; }
    .hero { position: relative; overflow: hidden; padding: 74px 0 48px; background: var(--navy); color: white; }
    .hero::before, .hero::after { position: absolute; content: ""; pointer-events: none; }
    .hero::before { width: 440px; height: 440px; right: -110px; top: -230px; border: 1px solid rgba(215,240,92,.4); border-radius: 50%; box-shadow: 0 0 0 42px rgba(215,240,92,.045), 0 0 0 84px rgba(215,240,92,.035); }
    .hero::after { height: 7px; left: 0; right: 0; bottom: 0; background: linear-gradient(90deg,var(--coral) 0 28%,var(--lime) 28% 58%,#53d9bb 58% 78%,#6d8cff 78%); }
    .hero-grid { position: relative; display: grid; grid-template-columns: 1.15fr .85fr; align-items: center; gap: 54px; }
    .eyebrow { display: inline-flex; align-items: center; gap: 9px; color: var(--lime); font-size: 13px; font-weight: 700; }
    .eyebrow::before { width: 22px; height: 2px; content: ""; background: currentColor; }
    h1 { max-width: 670px; margin: 16px 0 18px; font-size: clamp(40px, 5vw, 62px); line-height: 1.12; }
    .hero-copy { max-width: 610px; margin: 0; color: #e1e8f5; font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
    .button-outline { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 18px; border: 1px solid rgba(255,255,255,.45); border-radius: 5px; color: white; font-weight: 650; transition: background .2s ease; }
    .button-outline:hover { background: rgba(255,255,255,.12); }
    .hero-note { margin-top: 18px; color: #c6d0e0; font-size: 13px; }
    .hero-art { min-height: 300px; display: grid; grid-template-columns: 1fr 1fr; align-content: center; gap: 12px; transform: rotate(-2deg); }
    .signal { min-height: 92px; padding: 16px; border: 1px solid rgba(255,255,255,.18); border-radius: 5px; background: rgba(255,255,255,.08); animation: rise .65s both; }
    .signal:nth-child(2) { background: var(--lime); color: var(--ink); animation-delay: .1s; }
    .signal:nth-child(3) { background: #53d9bb; color: var(--ink); animation-delay: .2s; }
    .signal:nth-child(4) { background: var(--coral); color: white; animation-delay: .3s; }
    .signal strong { display: block; margin-bottom: 5px; font-size: 20px; }
    .signal span { font-size: 12px; opacity: .86; }
    .metrics { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(4,1fr); gap: 0; margin-top: 42px; border-top: 1px solid rgba(255,255,255,.2); }
    .metric { padding: 20px 16px 0 0; }
    .metric strong { display: block; color: var(--lime); font-size: 24px; }
    .metric span { color: #d3dbea; font-size: 13px; }
    section { padding: 76px 0; }
    .section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 30px; }
    .section-head > div { max-width: 720px; }
    .kicker { color: var(--coral-dark); font-size: 12px; font-weight: 800; text-transform: uppercase; }
    h2 { margin: 6px 0 0; font-size: clamp(27px, 3.4vw, 38px); line-height: 1.2; }
    .section-lead { max-width: 600px; margin: 10px 0 0; color: var(--muted); }
    .text-link { color: var(--blue); font-weight: 700; white-space: nowrap; }
    .intro-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: start; }
    .intro-copy p { margin: 0 0 14px; color: var(--muted); }
    .intro-copy strong { color: var(--ink); }
    .capability-list { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); }
    .capability { padding: 17px 14px 17px 0; border-bottom: 1px solid var(--line); }
    .capability strong { display: block; margin-bottom: 4px; }
    .capability span { color: var(--muted); font-size: 13px; }
    .ticker { overflow: hidden; padding: 17px 0; background: var(--lime); color: var(--ink); }
    .ticker-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
    .ticker strong { font-size: 14px; }
    .tags { display: flex; flex-wrap: wrap; gap: 8px; }
    .tag { padding: 5px 10px; border: 1px solid rgba(25,33,46,.22); border-radius: 3px; font-size: 12px; }
    .services { background: #eff2f7; }
    .service-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; }
    .service { min-height: 178px; padding: 22px; background: white; border-top: 3px solid var(--blue); transition: transform .2s ease, box-shadow .2s ease; }
    .service:nth-child(3n+2) { border-color: var(--coral); }
    .service:nth-child(3n) { border-color: #18a981; }
    .service:hover, .review:hover, .case:hover { transform: translateY(-4px); box-shadow: 0 12px 30px rgba(26,39,69,.09); }
    .service h3, .review h3, .case h3 { margin: 0 0 8px; font-size: 18px; }
    .service p { margin: 0; color: var(--muted); font-size: 14px; }
    .service .mini-tags { margin-top: 13px; color: var(--blue); font-size: 12px; }
    .workflow { display: grid; grid-template-columns: repeat(5,1fr); gap: 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
    .step { position: relative; padding: 24px 18px 24px 0; }
    .step:not(:last-child)::after { position: absolute; top: 35px; right: 14px; content: "→"; color: var(--coral); font-size: 20px; }
    .step-num { display: inline-grid; width: 32px; aspect-ratio: 1; place-items: center; margin-bottom: 12px; background: var(--navy); color: white; font-size: 13px; font-weight: 700; }
    .step h3 { margin: 0 0 5px; font-size: 16px; }
    .step p { margin: 0; color: var(--muted); font-size: 13px; }
    .solutions { display: grid; grid-template-columns: .78fr 1.22fr; gap: 38px; align-items: start; }
    .solution-aside { padding: 26px; background: var(--coral); color: white; }
    .solution-aside h3 { margin: 0 0 10px; font-size: 23px; }
    .solution-aside p { margin: 0 0 18px; color: #fff0ed; }
    .solution-aside a { display: inline-block; border-bottom: 1px solid white; font-weight: 700; }
    .solution-rows { border-top: 1px solid var(--line); }
    .solution-row { display: grid; grid-template-columns: 142px 1fr; gap: 18px; padding: 17px 0; border-bottom: 1px solid var(--line); }
    .solution-row strong { color: var(--blue); }
    .solution-row span { color: var(--muted); font-size: 14px; }
    .network { background: #e5f5ef; }
    .network-inner { display: grid; grid-template-columns: .8fr 1.2fr; gap: 38px; align-items: center; }
    .network-copy p { color: var(--muted); }
    .network-stats { display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; background: #bfddd0; border: 1px solid #bfddd0; }
    .network-stat { min-height: 110px; display: flex; flex-direction: column; justify-content: center; padding: 18px; background: #f7fcf9; }
    .network-stat strong { color: #087858; font-size: 18px; }
    .network-stat span { color: var(--muted); font-size: 12px; }
    .case-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; }
    .case { overflow: hidden; background: white; transition: transform .2s ease, box-shadow .2s ease; }
    .case-image { aspect-ratio: 16 / 9; overflow: hidden; background: #e9edf4; }
    .case-image img { width: 100%; height: 100%; object-fit: cover; }
    .case-copy { padding: 18px; }
    .case-copy p { margin: 0; color: var(--muted); font-size: 14px; }
    .case-label { display: inline-block; margin-bottom: 8px; color: var(--coral-dark); font-size: 12px; font-weight: 700; }
    .review-section { background: var(--navy); color: white; }
    .review-section .kicker { color: var(--lime); }
    .review-section .section-lead { color: #d0d9e7; }
    .review-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 13px; }
    .review { padding: 20px; border: 1px solid rgba(255,255,255,.2); background: rgba(255,255,255,.06); transition: transform .2s ease, box-shadow .2s ease; }
    .stars { margin-bottom: 10px; color: var(--lime); letter-spacing: 0; }
    .review p { margin: 0 0 16px; color: #e0e6ef; font-size: 14px; }
    .review h3 { margin: 0; font-size: 14px; }
    .review span { color: #b9c6d8; font-size: 12px; }
    .comparison { display: grid; grid-template-columns: .72fr 1.28fr; gap: 32px; align-items: start; }
    .score-panel { padding: 25px; background: var(--lime); }
    .score-panel small { font-weight: 700; }
    .score { margin: 8px 0; font-size: 54px; line-height: 1; font-weight: 850; }
    .score span { font-size: 19px; font-weight: 600; }
    .score-stars { color: #a34800; font-size: 22px; }
    .score-panel p { margin: 15px 0 0; font-size: 13px; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); background: white; }
    table { width: 100%; border-collapse: collapse; text-align: left; }
    th, td { min-width: 130px; padding: 13px 15px; border-bottom: 1px solid var(--line); font-size: 13px; }
    th { background: #edf1f8; color: var(--ink); }
    td { color: var(--muted); }
    td:first-child { color: var(--ink); font-weight: 700; }
    .table-note { margin: 10px 0 0; color: var(--muted); font-size: 12px; }
    .match { background: #fff; }
    .match-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 42px; }
    .match-copy { padding: 5px 0; }
    .match-copy p { color: var(--muted); }
    .form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .field { display: flex; flex-direction: column; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    label { color: #344054; font-size: 13px; font-weight: 650; }
    input, select, textarea { width: 100%; min-height: 44px; padding: 10px 12px; border: 1px solid #d7dce5; border-radius: 4px; outline: none; background: #fff; color: var(--ink); }
    textarea { min-height: 112px; resize: vertical; }
    input:focus, select:focus, textarea:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(35,85,204,.1); }
    .form .button { justify-self: start; cursor: pointer; }
    .form-note { grid-column: 1 / -1; margin: 0; color: var(--muted); font-size: 12px; }
    .faq { background: #eff2f7; }
    .faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 32px; align-items: start; }
    details { border-bottom: 1px solid #d7dce5; }
    summary { position: relative; padding: 17px 30px 17px 0; cursor: pointer; list-style: none; font-weight: 700; }
    summary::-webkit-details-marker { display: none; }
    summary::after { position: absolute; right: 2px; top: 14px; content: "+"; color: var(--coral-dark); font-size: 22px; }
    details[open] summary::after { content: "−"; }
    details p { margin: 0; padding: 0 24px 17px 0; color: var(--muted); font-size: 14px; }
    .knowledge { display: grid; grid-template-columns: .8fr 1.2fr; gap: 30px; align-items: start; }
    .knowledge-intro { padding: 24px; background: var(--blue); color: white; }
    .knowledge-intro h3 { margin: 0 0 8px; }
    .knowledge-intro p { margin: 0; color: #e1eaff; }
    .article-list { border-top: 1px solid var(--line); }
    .article-row { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 14px 0; border-bottom: 1px solid var(--line); }
    .article-row span { font-weight: 650; }
    .article-row a { color: var(--blue); font-size: 13px; white-space: nowrap; }
    .article-row a:hover { text-decoration: underline; }
    .press-band { padding: 36px 0; background: var(--coral); color: white; }
    .press-inner { display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: center; }
    .press-inner h2 { font-size: 25px; }
    .press-inner p { margin: 6px 0 0; color: #ffebe8; }
    .button-light { display: inline-flex; min-height: 44px; align-items: center; padding: 0 18px; background: white; color: var(--ink); border-radius: 4px; font-weight: 750; }
    .contact { background: var(--paper); }
    .contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
    .contact-details { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; margin-top: 22px; border-top: 1px solid var(--line); }
    .contact-item { padding: 14px 0; border-bottom: 1px solid var(--line); }
    .contact-item span { display: block; color: var(--muted); font-size: 12px; }
    .contact-item strong { font-size: 14px; overflow-wrap: anywhere; }
    .qr-area { display: flex; align-items: center; gap: 18px; margin-top: 20px; }
    .qr-area img { width: 112px; border: 6px solid white; }
    .qr-area p { margin: 0; color: var(--muted); font-size: 13px; }
    .affiliate { padding: 35px 0; border-top: 1px solid var(--line); background: white; }
    .affiliate-head { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; margin-bottom: 16px; }
    .affiliate-head h2 { font-size: 20px; }
    .friend-links { display: flex; flex-wrap: wrap; gap: 10px 22px; }
    .friend-links a { color: #3d4c62; font-size: 13px; }
    .friend-links a:hover { color: var(--coral-dark); }
    .footer { padding: 20px 0; background: #e8ebf1; color: #354052; }
    .footer-inner { display: flex; justify-content: space-between; align-items: center; gap: 18px; font-size: 12px; }
    .footer p { margin: 0; }
    .floating { position: fixed; z-index: 15; right: 18px; bottom: 20px; display: grid; gap: 8px; }
    .floating a { display: grid; width: 48px; height: 48px; place-items: center; border-radius: 50%; background: var(--coral); color: white; font-size: 12px; font-weight: 800; box-shadow: 0 5px 18px rgba(25,33,46,.2); }
    .floating a:last-child { background: var(--navy); }
    .reveal { opacity: 0; transform: translateY(16px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.is-visible { opacity: 1; transform: none; }
    @keyframes rise { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
    @media (max-width: 1080px) {
      .nav-links a { padding-inline: 5px; font-size: 11px; }
      .header-cta { margin-left: 8px; padding-inline: 12px; }
    }
    @media (max-width: 900px) {
      .menu-toggle { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; }
      .nav { position: relative; }
      .nav-links { display: none; position: absolute; top: calc(100% + 16px); right: 0; width: min(340px, calc(100vw - 40px)); max-height: calc(100vh - 100px); overflow: auto; padding: 10px; background: white; border: 1px solid var(--line); box-shadow: 0 12px 30px rgba(25,33,46,.12); }
      .nav-links.is-open { display: grid; grid-template-columns: 1fr 1fr; }
      .nav-links a { padding: 10px; font-size: 13px; }
      .header-cta { margin-left: 9px; }
      .hero-grid { gap: 28px; }
      .service-grid { grid-template-columns: repeat(2,1fr); }
    }
    @media (max-width: 680px) {
      .container { width: min(var(--max), calc(100% - 32px)); }
      .header-inner { min-height: 64px; gap: 10px; }
      .brand img { width: 122px; }
      .header-cta { min-height: 38px; padding-inline: 10px; font-size: 12px; }
      .hero { padding: 52px 0 34px; }
      .hero-grid, .intro-grid, .solutions, .network-inner, .comparison, .match-grid, .knowledge, .contact-grid { grid-template-columns: 1fr; }
      .hero-grid { gap: 26px; }
      h1 { font-size: 42px; }
      .hero-copy { font-size: 15px; }
      .hero-art { min-height: auto; grid-template-columns: 1fr 1fr; transform: none; }
      .signal { min-height: 78px; padding: 12px; }
      .metrics { grid-template-columns: 1fr 1fr; row-gap: 15px; }
      .metric { padding-top: 15px; }
      section { padding: 54px 0; }
      .section-head { display: block; margin-bottom: 22px; }
      .section-head > .text-link { display: inline-block; margin-top: 12px; }
      .ticker-inner { align-items: flex-start; flex-direction: column; }
      .service-grid, .review-grid, .case-grid { grid-template-columns: 1fr; }
      .service { min-height: 0; }
      .workflow { grid-template-columns: 1fr; }
      .step { display: grid; grid-template-columns: 42px 1fr; gap: 0 10px; padding: 16px 0; }
      .step-num { grid-row: span 2; margin: 0; }
      .step:not(:last-child)::after { display: none; }
      .step h3 { align-self: end; }
      .solution-row { grid-template-columns: 1fr; gap: 5px; }
      .network-stats { grid-template-columns: 1fr 1fr; }
      .faq-grid { grid-template-columns: 1fr; }
      .press-inner { grid-template-columns: 1fr; }
      .form { grid-template-columns: 1fr; }
      .field.full, .form-note { grid-column: auto; }
      .contact-details { grid-template-columns: 1fr 1fr; }
      .affiliate-head { align-items: flex-start; flex-direction: column; gap: 6px; }
      .footer-inner { align-items: flex-start; flex-direction: column; }
      .floating { right: 10px; bottom: 12px; }
      .floating a { width: 42px; height: 42px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }