:root {
      color-scheme: dark;
      --bg: #100d18;
      --bg-soft: #171321;
      --panel: #1d1728;
      --panel-light: #241b31;
      --text: #f5f0fb;
      --muted: #b7adbf;
      --line: rgba(233, 214, 255, .15);
      --pink: #ff4fa4;
      --violet: #a982ff;
      --cyan: #80e5e2;
      --content: 1160px;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 88px; }
    body {
      margin: 0;
      background: var(--bg);
      color: var(--text);
      font-family: Inter, "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.65;
    }
    body::before {
      content: "";
      position: fixed;
      inset: 0;
      z-index: -1;
      pointer-events: none;
      background:
        linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.018) 1px, transparent 1px);
      background-size: 44px 44px;
      mask-image: linear-gradient(to bottom, black, transparent 82%);
    }
    a { color: inherit; text-decoration: none; }
    button, input, select, textarea { font: inherit; }
    button, a { -webkit-tap-highlight-color: transparent; }
    img { max-width: 100%; height: auto; }
    .container { width: min(var(--content), calc(100% - 40px)); margin-inline: auto; }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 20;
      border-bottom: 1px solid var(--line);
      background: rgba(16, 13, 24, .94);
      backdrop-filter: blur(16px);
    }
    .nav-row { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
    .brand { display: flex; align-items: center; gap: 11px; flex: 0 0 auto; font-weight: 750; }
    .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: 8px 7px; color: var(--muted); font-size: 12px; transition: color .2s ease; }
    .nav-links a:hover, .nav-links a:focus-visible { color: var(--text); }
    .nav-cta, .button {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 44px;
      padding: 0 18px;
      border: 1px solid transparent;
      background: linear-gradient(110deg, #ff4fa4, #a982ff);
      color: #160e20;
      font-weight: 750;
      transition: transform .2s ease, filter .2s ease;
    }
    .nav-cta { flex: 0 0 auto; font-size: 13px; }
    .button:hover, .nav-cta:hover { transform: translateY(-2px); filter: brightness(1.08); }
    .button-secondary { background: transparent; color: var(--text); border-color: var(--line); }
    .menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); background: var(--panel); color: var(--text); }
    .hero { position: relative; overflow: hidden; padding: 92px 0 74px; border-bottom: 1px solid var(--line); }
    .hero::after {
      content: "";
      position: absolute;
      width: 420px;
      height: 420px;
      right: -100px;
      top: -170px;
      border: 1px solid rgba(255,79,164,.34);
      border-radius: 50%;
      box-shadow: 0 0 0 36px rgba(169,130,255,.035), 0 0 0 82px rgba(255,79,164,.025);
      pointer-events: none;
    }
    .hero-inner { position: relative; z-index: 1; }
    .eyebrow { color: var(--cyan); text-transform: uppercase; letter-spacing: 1.5px; font-size: 12px; font-weight: 700; }
    h1 { max-width: 760px; margin: 16px 0 20px; font-size: clamp(42px, 7vw, 76px); line-height: 1.12; letter-spacing: 0; }
    .hero-copy { max-width: 650px; margin: 0; color: var(--muted); font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 29px; }
    .hero-foot { margin-top: 48px; display: flex; align-items: center; gap: 14px; color: var(--muted); font-size: 13px; }
    .hero-foot::before { content: ""; width: 38px; height: 1px; background: var(--pink); }
    .section { padding: 76px 0; border-bottom: 1px solid var(--line); }
    .section-head { max-width: 730px; margin-bottom: 30px; }
    .section-kicker { color: var(--pink); font-size: 12px; font-weight: 750; text-transform: uppercase; letter-spacing: 1.3px; }
    h2 { margin: 8px 0 12px; font-size: clamp(28px, 4vw, 42px); line-height: 1.2; letter-spacing: 0; }
    h3 { margin: 0 0 9px; font-size: 18px; line-height: 1.35; }
    .section-head p, .muted { color: var(--muted); }
    .stats { display: grid; grid-template-columns: repeat(4, 1fr); border-block: 1px solid var(--line); }
    .stat { padding: 24px 20px; border-right: 1px solid var(--line); }
    .stat:last-child { border-right: 0; }
    .stat strong { display: block; color: var(--text); font-size: 25px; }
    .stat span { color: var(--muted); font-size: 13px; }
    .intro-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: start; }
    .intro-copy { max-width: 680px; color: var(--muted); }
    .intro-copy p:first-child { margin-top: 0; }
    .signal-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
    .signal-list li { display: flex; justify-content: space-between; gap: 18px; padding: 13px 0; border-bottom: 1px solid var(--line); }
    .signal-list strong { color: var(--text); font-size: 14px; }
    .signal-list span { color: var(--muted); text-align: right; font-size: 13px; }
    .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
    .service { min-height: 154px; padding: 20px; border: 1px solid var(--line); background: rgba(29,23,40,.78); transition: transform .2s ease, border-color .2s ease; }
    .service:hover, .quote:hover { transform: translateY(-3px); border-color: rgba(255,79,164,.55); }
    .service p { margin: 0; color: var(--muted); font-size: 14px; }
    .service-tag { display: inline-block; margin-bottom: 12px; color: var(--cyan); font-size: 11px; font-weight: 700; }
    .steps { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); }
    .step { padding: 22px 18px 6px 0; }
    .step-number { display: block; margin-bottom: 18px; color: var(--pink); font-size: 12px; font-weight: 750; }
    .step p { margin: 0; color: var(--muted); font-size: 14px; }
    .band { background: linear-gradient(100deg, rgba(255,79,164,.1), rgba(128,229,226,.045)); }
    .model-list { display: flex; flex-wrap: wrap; gap: 8px; }
    .model-list span { padding: 7px 11px; border: 1px solid var(--line); color: #ded3eb; font-size: 13px; }
    .industry-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 30px; }
    .industry-item { padding: 17px 0; border-bottom: 1px solid var(--line); }
    .industry-item strong { display: block; margin-bottom: 4px; }
    .industry-item span { color: var(--muted); font-size: 13px; }
    .split { display: grid; grid-template-columns: 1fr 1fr; gap: 42px; align-items: start; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); }
    table { width: 100%; border-collapse: collapse; min-width: 640px; }
    th, td { padding: 14px 16px; text-align: left; border-bottom: 1px solid var(--line); }
    th { background: var(--panel-light); color: var(--text); font-size: 13px; }
    td { color: var(--muted); font-size: 13px; }
    td:first-child { color: var(--text); }
    .score { padding: 22px; border-left: 3px solid var(--pink); background: var(--panel); }
    .score strong { display: block; font-size: 38px; line-height: 1.2; }
    .score span { color: var(--muted); }
    .stars { color: #ffb85c; letter-spacing: 2px; }
    .price-line { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px; padding: 24px 0; border-block: 1px solid var(--line); }
    .price-line p { max-width: 680px; margin: 0; color: var(--muted); }
    .case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .case { overflow: hidden; border: 1px solid var(--line); background: var(--panel); }
    .case img { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
    .case-copy { padding: 17px; }
    .case-copy p { margin: 0; color: var(--muted); font-size: 13px; }
    .quote-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
    .quote { padding: 19px; border: 1px solid var(--line); background: var(--panel); transition: transform .2s ease, border-color .2s ease; }
    .quote p { margin: 0 0 18px; color: #ded6e7; font-size: 14px; }
    .quote footer { color: var(--muted); font-size: 12px; }
    .faq-list { border-top: 1px solid var(--line); }
    details { border-bottom: 1px solid var(--line); }
    summary { position: relative; padding: 17px 34px 17px 0; cursor: pointer; list-style: none; font-weight: 650; }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; position: absolute; right: 2px; color: var(--pink); font-size: 20px; top: 11px; }
    details[open] summary::after { content: "−"; }
    details p { max-width: 820px; margin: 0 0 18px; color: var(--muted); font-size: 14px; }
    .article-links, .friend-links { display: flex; flex-wrap: wrap; gap: 10px 18px; }
    .article-links a, .friend-links a { color: #d8c9ec; font-size: 13px; text-decoration: underline; text-decoration-color: rgba(216,201,236,.35); text-underline-offset: 4px; }
    .contact-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 42px; align-items: start; }
    .contact-info { color: var(--muted); }
    .contact-info a { color: var(--cyan); }
    .qr-wrap { width: 150px; margin-top: 20px; padding: 8px; background: #fff; }
    .qr-wrap img { display: block; width: 100%; }
    form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .field { display: flex; flex-direction: column; gap: 6px; }
    .field-wide { grid-column: 1 / -1; }
    label { color: #e7dfee; font-size: 13px; }
    input, select, textarea { width: 100%; border: 1px solid var(--line); border-radius: 0; padding: 11px 12px; outline: none; background: #181321; color: var(--text); }
    input:focus, select:focus, textarea:focus { border-color: var(--violet); }
    textarea { min-height: 120px; resize: vertical; }
    .form-note { grid-column: 1 / -1; margin: 0; color: var(--muted); font-size: 12px; }
    .form-submit { justify-self: start; }
    .site-footer { padding: 27px 0; background: #0c0a12; color: #d4cada; }
    .footer-row { display: flex; justify-content: space-between; align-items: center; gap: 18px; flex-wrap: wrap; }
    .footer-row p { margin: 0; font-size: 12px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 12px; }
    .footer-links a { color: #d4cada; font-size: 12px; }
    .float-contact { position: fixed; right: 18px; bottom: 20px; z-index: 15; display: flex; flex-direction: column; gap: 8px; }
    .float-contact a { min-width: 94px; padding: 10px 12px; border: 1px solid var(--line); background: #241b31; color: var(--text); text-align: center; font-size: 12px; box-shadow: 0 8px 24px rgba(0,0,0,.3); }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.is-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: 1060px) {
      .nav-links a { padding-inline: 5px; font-size: 11px; }
      .nav-cta { padding-inline: 12px; }
    }
    @media (max-width: 850px) {
      .nav-row { min-height: 66px; }
      .menu-toggle { display: inline-grid; place-items: center; margin-left: auto; }
      .nav-cta { display: none; }
      .nav-links { display: none; position: absolute; top: 66px; left: 0; right: 0; padding: 12px 20px 18px; border-bottom: 1px solid var(--line); background: #100d18; align-items: stretch; }
      .nav-links.is-open { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
      .nav-links a { padding: 9px 6px; font-size: 13px; }
      .service-grid, .quote-grid, .case-grid { grid-template-columns: repeat(2, 1fr); }
      .industry-list { grid-template-columns: repeat(2, 1fr); }
      .intro-grid, .split, .contact-grid { grid-template-columns: 1fr; gap: 28px; }
    }
    @media (max-width: 560px) {
      .container { width: min(var(--content), calc(100% - 32px)); }
      .hero { padding: 68px 0 52px; }
      .hero-copy { font-size: 15px; }
      .section { padding: 56px 0; }
      .stats { grid-template-columns: repeat(2, 1fr); }
      .stat:nth-child(2) { border-right: 0; }
      .stat:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
      .service-grid, .quote-grid, .case-grid, .industry-list, .steps { grid-template-columns: 1fr; }
      .step { padding: 19px 0; border-bottom: 1px solid var(--line); }
      .service { min-height: 0; }
      form { grid-template-columns: 1fr; }
      .field-wide, .form-note { grid-column: auto; }
      .float-contact { right: 10px; bottom: 12px; }
      .float-contact a { min-width: 78px; padding: 8px; }
    }