:root {
      color-scheme: light;
      --ink: #202a34;
      --muted: #596774;
      --paper: #fffaf5;
      --white: #fff;
      --line: #e9e2db;
      --coral: #f25543;
      --orange: #ff9d3d;
      --teal: #128c83;
      --blue: #3159c9;
      --yellow: #ffd94a;
      --shadow: 0 12px 32px rgba(49, 46, 39, .08);
      --container: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 82px; }
    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 { 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(255,250,245,.96); border-bottom: 1px solid rgba(32,42,52,.08); backdrop-filter: blur(12px); }
    .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; flex: 0 0 auto; font-weight: 800; }
    .brand img { width: 42px; height: auto; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; flex-wrap: wrap; }
    .nav-links a { padding: 8px 10px; color: #41505d; font-size: 13px; white-space: nowrap; transition: color .2s; }
    .nav-links a:hover { color: var(--coral); }
    .nav-cta, .button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 0; border-radius: 6px; padding: 12px 18px; color: #fff; background: var(--coral); font-weight: 750; cursor: pointer; transition: transform .2s, box-shadow .2s, background .2s; }
    .nav-cta { flex: 0 0 auto; padding: 10px 15px; font-size: 13px; }
    .button:hover, .nav-cta:hover { transform: translateY(-2px); background: #d94134; box-shadow: 0 8px 18px rgba(242,85,67,.22); }
    .button.secondary { color: var(--ink); background: var(--yellow); }
    .button.secondary:hover { background: #f3c92e; }
    .menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 6px; color: var(--ink); background: #fff; cursor: pointer; }
    .hero { position: relative; overflow: hidden; background: #fff2dc; }
    .hero::before { content: ""; position: absolute; width: 360px; height: 360px; right: -100px; top: -190px; border: 44px solid rgba(255,157,61,.22); border-radius: 50%; }
    .hero::after { content: ""; position: absolute; width: 150px; height: 150px; right: 16%; bottom: -105px; background: rgba(18,140,131,.15); border-radius: 28px; transform: rotate(25deg); }
    .hero-inner { position: relative; z-index: 1; padding: 76px 0 66px; }
    .hero-copy { max-width: 760px; }
    .eyebrow { display: inline-flex; align-items: center; gap: 8px; margin: 0 0 16px; color: #a84433; font-size: 13px; font-weight: 800; letter-spacing: 0; }
    .eyebrow::before { content: ""; width: 24px; height: 3px; background: var(--coral); border-radius: 3px; }
    h1 { max-width: 720px; margin: 0; font-size: clamp(38px, 6vw, 68px); line-height: 1.12; letter-spacing: 0; }
    .hero-copy > p { max-width: 650px; margin: 20px 0 25px; color: #43505b; font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
    .hero-note { margin-top: 20px; color: #596774; font-size: 13px; }
    .hero-note strong { color: var(--teal); }
    .hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; margin-top: 46px; border-top: 1px solid rgba(32,42,52,.16); }
    .hero-stat { padding: 18px 18px 0 0; }
    .hero-stat strong { display: block; font-size: 17px; }
    .hero-stat span { color: var(--muted); font-size: 13px; }
    .section { padding: 76px 0; }
    .section.tinted { background: #fff; }
    .section-heading { display: flex; align-items: end; justify-content: space-between; gap: 28px; margin-bottom: 30px; }
    .section-heading > div { max-width: 690px; }
    .section-heading p { max-width: 390px; margin: 0; color: var(--muted); }
    h2 { margin: 0 0 10px; font-size: 32px; line-height: 1.25; letter-spacing: 0; }
    h3 { margin: 0 0 8px; font-size: 19px; line-height: 1.4; letter-spacing: 0; }
    .section-kicker { margin: 0 0 8px; color: var(--teal); font-size: 12px; font-weight: 800; }
    .intro-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: start; }
    .intro-copy p { color: var(--muted); margin: 0 0 14px; }
    .feature-list { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 16px 24px; padding: 0; margin: 0; list-style: none; }
    .feature-list li { border-top: 2px solid var(--yellow); padding-top: 11px; }
    .feature-list strong { display: block; margin-bottom: 3px; }
    .feature-list span { color: var(--muted); font-size: 14px; }
    .service-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 14px; }
    .service-item { padding: 18px; border: 1px solid var(--line); border-radius: 6px; background: #fff; transition: transform .22s, box-shadow .22s, border-color .22s; }
    .service-item:hover { transform: translateY(-4px); border-color: #f4aa83; box-shadow: var(--shadow); }
    .service-number { display: inline-block; margin-bottom: 12px; color: var(--coral); font-size: 12px; font-weight: 800; }
    .service-item p { margin: 0; color: var(--muted); font-size: 14px; }
    .service-item.wide { grid-column: span 2; background: #fff4e7; }
    .strip { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 22px; }
    .tag { padding: 7px 11px; border-radius: 4px; color: #284b48; background: #e4f4ef; font-size: 13px; }
    .flow { display: grid; grid-template-columns: repeat(5, minmax(0,1fr)); gap: 16px; counter-reset: step; }
    .flow-step { position: relative; padding: 18px 15px; border-top: 3px solid var(--teal); background: #f1f7f5; counter-increment: step; }
    .flow-step::before { content: "0" counter(step); display: block; margin-bottom: 12px; color: var(--teal); font-weight: 850; }
    .flow-step p { margin: 0; color: var(--muted); font-size: 14px; }
    .solution-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 18px; }
    .solution { padding: 20px; border-left: 4px solid var(--orange); background: #fff7e8; }
    .solution:nth-child(2) { border-color: var(--blue); background: #eef2ff; }
    .solution:nth-child(3) { border-color: var(--teal); background: #eaf6f2; }
    .solution p { margin: 0; color: var(--muted); font-size: 14px; }
    .media-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
    .media-card { overflow: hidden; border-radius: 6px; background: #fff; box-shadow: var(--shadow); }
    .media-card img { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
    .media-caption { padding: 15px 18px; }
    .media-caption p { margin: 0; color: var(--muted); font-size: 14px; }
    .case-aside { display: grid; grid-template-columns: .8fr 1.2fr; gap: 24px; align-items: center; margin-top: 18px; padding: 20px; background: #fff; border: 1px solid var(--line); }
    .case-aside img { display: block; width: 100%; aspect-ratio: 1; object-fit: cover; }
    .case-aside p { color: var(--muted); }
    .comparison { overflow-x: auto; border: 1px solid var(--line); background: #fff; }
    table { width: 100%; min-width: 720px; border-collapse: collapse; }
    th, td { padding: 14px 16px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
    th { color: #fff; background: #273a45; font-size: 14px; }
    td { font-size: 14px; }
    tr:last-child td { border-bottom: 0; }
    .rating { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 18px; padding: 20px 24px; background: #fff0d2; }
    .rating strong { color: #a7442c; font-size: 28px; }
    .stars { color: #bd7800; letter-spacing: 0; }
    .review-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 14px; margin-top: 26px; }
    .review { padding: 17px; border-top: 2px solid var(--coral); background: #fff; }
    .review p { margin: 0 0 12px; color: #485560; font-size: 14px; }
    .review strong { font-size: 13px; }
    .review span { display: block; color: var(--muted); font-size: 12px; }
    .match-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 44px; align-items: start; }
    .match-copy p { color: var(--muted); }
    .match-copy ul { padding-left: 18px; color: var(--muted); }
    .form-box { padding: 24px; border: 1px solid var(--line); background: #fff; }
    .form-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); 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%; padding: 11px 12px; border: 1px solid #d8dfe3; border-radius: 4px; color: var(--ink); background: #fff; }
    .field textarea { min-height: 110px; resize: vertical; }
    .form-box .button { margin-top: 16px; }
    .price-band { display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: center; padding: 26px; color: #fff; background: #24594f; }
    .price-band p { margin: 6px 0 0; color: #e4f3ee; }
    .price-band .button { color: var(--ink); background: var(--yellow); }
    .faq-list { border-top: 1px solid var(--line); }
    .faq-list details { border-bottom: 1px solid var(--line); }
    .faq-list summary { position: relative; padding: 17px 36px 17px 0; cursor: pointer; font-weight: 750; list-style: none; }
    .faq-list summary::-webkit-details-marker { display: none; }
    .faq-list summary::after { content: "+"; position: absolute; right: 4px; top: 12px; color: var(--coral); font-size: 23px; }
    .faq-list details[open] summary::after { content: "−"; }
    .faq-list details p { max-width: 850px; margin: 0; padding: 0 0 18px; color: var(--muted); }
    .article-links { display: grid; grid-template-columns: repeat(5, minmax(0,1fr)); gap: 12px; }
    .article-links a { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 15px; border: 1px solid var(--line); background: #fff; font-weight: 700; transition: border-color .2s, transform .2s; }
    .article-links a:hover { transform: translateY(-2px); border-color: var(--coral); }
    .article-links span { color: var(--coral); }
    .join-band { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 26px; background: #fff0d2; }
    .join-band p { margin: 5px 0 0; color: var(--muted); }
    .contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: start; }
    .contact-info { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; }
    .contact-item { padding: 16px; border-left: 3px solid var(--teal); background: #fff; }
    .contact-item span { display: block; color: var(--muted); font-size: 13px; }
    .contact-item strong { overflow-wrap: anywhere; }
    .qr-box { display: flex; align-items: center; gap: 18px; margin-top: 16px; padding: 16px; background: #fff; }
    .qr-box img { width: 120px; height: 120px; object-fit: contain; }
    .qr-box p { margin: 0; color: var(--muted); font-size: 14px; }
    .footer { padding: 28px 0; color: #26343d; background: #f1e9df; border-top: 1px solid #e3d8cd; }
    .footer-top { display: flex; align-items: start; justify-content: space-between; gap: 24px; }
    .footer p { margin: 4px 0; color: #4e5b63; font-size: 13px; }
    .friend-links { display: flex; flex-wrap: wrap; gap: 8px 18px; max-width: 640px; }
    .friend-links a { color: #354b57; font-size: 13px; text-decoration: underline; text-decoration-color: #c8b9aa; text-underline-offset: 3px; }
    .copyright { margin-top: 20px; padding-top: 14px; border-top: 1px solid #d9cec3; color: #5c666b; font-size: 12px; }
    .float-contact { position: fixed; right: 18px; bottom: 20px; z-index: 15; display: flex; flex-direction: column; gap: 8px; }
    .float-contact a, .back-top { display: inline-flex; align-items: center; justify-content: center; width: 48px; height: 48px; border: 0; border-radius: 6px; color: #fff; background: var(--teal); box-shadow: var(--shadow); font-size: 12px; font-weight: 800; cursor: pointer; }
    .back-top { background: var(--coral); }
    .reveal { opacity: 0; transform: translateY(14px); 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: 980px) {
      .menu-toggle { display: inline-flex; align-items: center; justify-content: center; }
      .nav-cta { margin-left: auto; }
      .nav-links { display: none; position: absolute; top: 71px; left: 0; right: 0; padding: 12px 20px 18px; background: var(--paper); border-bottom: 1px solid var(--line); box-shadow: 0 12px 18px rgba(32,42,52,.08); }
      .nav-links.open { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); }
      .nav-links a { padding: 10px; text-align: center; }
      .service-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
      .article-links { grid-template-columns: repeat(3, minmax(0,1fr)); }
    }
    @media (max-width: 680px) {
      .container { width: min(var(--container), calc(100% - 28px)); }
      .nav-row { min-height: 64px; gap: 10px; }
      .brand img { width: 34px; }
      .brand { font-size: 14px; }
      .nav-cta { padding: 9px 10px; font-size: 12px; }
      .nav-links { top: 63px; }
      .nav-links.open { grid-template-columns: repeat(2, minmax(0,1fr)); }
      .hero-inner { padding: 55px 0 42px; }
      .hero-copy > p { font-size: 15px; }
      .hero-stats { grid-template-columns: repeat(2, minmax(0,1fr)); row-gap: 14px; margin-top: 34px; }
      .section { padding: 54px 0; }
      .section-heading { display: block; }
      .section-heading p { margin-top: 12px; }
      h2 { font-size: 27px; }
      .intro-grid, .match-grid, .contact-grid, .case-aside { grid-template-columns: 1fr; gap: 24px; }
      .feature-list { gap: 14px; }
      .service-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
      .service-item { padding: 14px; }
      .service-item.wide { grid-column: span 2; }
      .flow { grid-template-columns: 1fr 1fr; }
      .solution-grid { grid-template-columns: 1fr; }
      .media-grid { grid-template-columns: 1fr; }
      .review-grid { grid-template-columns: 1fr 1fr; }
      .article-links { grid-template-columns: 1fr 1fr; }
      .form-grid { grid-template-columns: 1fr; }
      .field.full { grid-column: auto; }
      .price-band, .join-band { grid-template-columns: 1fr; display: grid; }
      .price-band .button, .join-band .button { justify-self: start; }
      .contact-info { grid-template-columns: 1fr 1fr; }
      .footer-top { display: block; }
      .friend-links { margin-top: 14px; }
      .float-contact { right: 10px; bottom: 12px; }
      .float-contact a, .back-top { width: 42px; height: 42px; }
    }
    @media (max-width: 390px) {
      .hero-actions .button { width: 100%; }
      .service-grid, .review-grid, .contact-info { grid-template-columns: 1fr; }
      .service-item.wide { grid-column: auto; }
      .article-links { grid-template-columns: 1fr; }
    }