:root {
      color-scheme: dark;
      --bg: #100d19;
      --surface: #191522;
      --surface-2: #211a2c;
      --line: #3b2d46;
      --text: #f6f0fa;
      --muted: #b9acbf;
      --pink: #ff4db8;
      --violet: #b48aff;
      --cyan: #82e7dd;
      --content: 1180px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 88px; }
    body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.65 system-ui, -apple-system, "Segoe UI", "Noto Sans SC", "Microsoft YaHei", sans-serif; }
    a { color: inherit; text-decoration: none; }
    button, input, select, textarea { font: inherit; }
    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 rgba(255,255,255,.09); background: rgba(16,13,25,.94); backdrop-filter: blur(14px); }
    .nav { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
    .brand { display: inline-flex; align-items: center; gap: 12px; flex: 0 0 auto; font-weight: 750; }
    .brand img { width: 42px; max-height: 42px; object-fit: contain; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; flex-wrap: wrap; }
    .nav-links a { padding: 9px 11px; color: var(--muted); font-size: 13px; transition: color .2s ease; }
    .nav-links a:hover, .nav-links a:focus-visible { color: var(--text); }
    .nav-cta { border: 1px solid rgba(255,77,184,.65); color: var(--text) !important; }
    .menu-toggle { display: none; border: 1px solid var(--line); background: var(--surface); color: var(--text); padding: 8px 12px; cursor: pointer; }
    .hero { position: relative; overflow: hidden; padding: 76px 0 64px; border-bottom: 1px solid rgba(255,255,255,.08); background: linear-gradient(125deg,#17101f 0%,#211126 48%,#131b26 100%); }
    .hero::before { content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .18; background: repeating-linear-gradient(135deg, transparent 0 34px, rgba(255,77,184,.22) 35px, transparent 36px 72px); mask-image: linear-gradient(90deg,#000,transparent 80%); }
    .hero-content { position: relative; max-width: 800px; }
    .eyebrow { color: var(--cyan); font-size: 13px; font-weight: 700; text-transform: uppercase; }
    h1 { max-width: 760px; margin: 18px 0; font-size: clamp(38px, 7vw, 72px); line-height: 1.09; }
    .hero p { max-width: 660px; color: #c9bdce; font-size: 18px; }
    .actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
    .button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 10px 20px; border: 1px solid var(--line); color: var(--text); background: var(--surface); transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
    .button:hover { transform: translateY(-2px); border-color: var(--pink); box-shadow: 0 8px 28px rgba(255,77,184,.17); }
    .button-primary { border-color: var(--pink); background: var(--pink); color: #210d1c; font-weight: 800; }
    .hero-strip { position: relative; display: grid; grid-template-columns: repeat(4,1fr); gap: 1px; margin-top: 56px; border: 1px solid var(--line); background: var(--line); }
    .hero-stat { padding: 18px 20px; background: #17121f; }
    .hero-stat strong { display: block; font-size: 20px; }
    .hero-stat span { color: var(--muted); font-size: 13px; }
    section { padding: 76px 0; border-bottom: 1px solid rgba(255,255,255,.07); }
    .section-head { max-width: 720px; margin-bottom: 32px; }
    .section-head .eyebrow { display: block; margin-bottom: 9px; }
    h2 { margin: 0 0 12px; font-size: clamp(27px,4vw,42px); line-height: 1.2; }
    h3 { margin: 0 0 9px; font-size: 19px; }
    .section-head p, .muted { color: var(--muted); }
    .intro-layout { display: grid; grid-template-columns: 1.25fr .75fr; gap: 40px; align-items: start; }
    .intro-copy p { color: #d0c5d5; }
    .principles { border-left: 1px solid var(--pink); padding-left: 22px; }
    .principles p { margin: 0 0 14px; color: var(--muted); }
    .grid { display: grid; gap: 14px; }
    .services { grid-template-columns: repeat(3,minmax(0,1fr)); }
    .service { padding: 22px; border: 1px solid var(--line); background: var(--surface); transition: transform .2s ease, border-color .2s ease; }
    .service:hover, .review:hover { transform: translateY(-3px); border-color: rgba(255,77,184,.7); }
    .service p, .step p, .review p { margin: 0; color: var(--muted); font-size: 14px; }
    .service .index { display: inline-block; margin-bottom: 14px; color: var(--pink); font-size: 12px; font-weight: 700; }
    .workflows { display: grid; grid-template-columns: repeat(4,1fr); gap: 0; border-top: 1px solid var(--line); }
    .step { position: relative; padding: 24px 18px 10px 0; }
    .step strong { display: block; margin-bottom: 7px; color: var(--cyan); }
    .industry-list { display: grid; grid-template-columns: repeat(4,1fr); gap: 10px; }
    .industry-list span, .tag-list span { padding: 10px 13px; border: 1px solid var(--line); color: #e5dbe8; background: rgba(255,255,255,.025); }
    .network { display: flex; flex-wrap: wrap; gap: 10px; }
    .network span { padding: 9px 13px; border: 1px solid #49314b; color: #eadced; background: #1c1523; }
    .case-grid { grid-template-columns: repeat(3,minmax(0,1fr)); }
    .case { border: 1px solid var(--line); background: var(--surface); }
    .case-media { aspect-ratio: 16 / 9; overflow: hidden; background: #211a2c; }
    .case-media img { display: block; width: 100%; height: 100%; object-fit: cover; }
    .case-copy { padding: 18px; }
    .case-copy p { margin: 0; color: var(--muted); font-size: 14px; }
    .score-row { display: grid; grid-template-columns: .7fr 1.3fr; gap: 24px; align-items: stretch; margin-bottom: 26px; }
    .score-panel { padding: 24px; border: 1px solid #774269; background: linear-gradient(135deg,#31172f,#211726); }
    .score-panel strong { display: block; color: var(--pink); font-size: 44px; line-height: 1.1; }
    .stars { color: #ffcc78; font-size: 22px; letter-spacing: 0; }
    .score-panel p { margin-bottom: 0; color: #d6c8da; }
    .review-points { padding: 21px 24px; border: 1px solid var(--line); background: var(--surface); color: #d6cbdc; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); }
    table { width: 100%; min-width: 700px; border-collapse: collapse; text-align: left; }
    th, td { padding: 14px 16px; border-bottom: 1px solid var(--line); }
    th { color: var(--cyan); background: #1b1523; }
    td { color: #d7ccdd; }
    .reviews { grid-template-columns: repeat(3,minmax(0,1fr)); }
    .review { padding: 20px; border: 1px solid var(--line); background: var(--surface); transition: transform .2s ease, border-color .2s ease; }
    .review .role { display: block; margin-bottom: 10px; color: var(--cyan); font-size: 13px; }
    .review .person { display: block; margin-top: 14px; color: #f2eaf4; font-size: 13px; }
    .faq-list { border-top: 1px solid var(--line); }
    details { border-bottom: 1px solid var(--line); }
    summary { position: relative; padding: 17px 38px 17px 0; cursor: pointer; font-weight: 650; list-style: none; }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; position: absolute; right: 4px; color: var(--pink); font-size: 22px; top: 10px; }
    details[open] summary::after { content: "−"; }
    details p { max-width: 820px; margin: 0 0 18px; color: var(--muted); }
    .articles { display: grid; grid-template-columns: repeat(5,minmax(0,1fr)); gap: 10px; }
    .article-link { padding: 15px; border: 1px solid var(--line); background: var(--surface); color: #eee3f0; transition: border-color .2s ease; }
    .article-link:hover { border-color: var(--pink); }
    .contact-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 32px; align-items: start; }
    .contact-info { color: var(--muted); }
    .contact-info p { margin: 9px 0; }
    .contact-info a { color: var(--cyan); }
    .qr { width: 150px; margin-top: 18px; padding: 7px; background: #fff; }
    .qr img { display: block; width: 100%; }
    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: #e7ddea; font-size: 13px; }
    input, select, textarea { width: 100%; min-height: 44px; border: 1px solid var(--line); border-radius: 0; padding: 10px 12px; color: var(--text); background: #17121e; }
    textarea { min-height: 120px; resize: vertical; }
    input:focus, select:focus, textarea:focus { outline: 2px solid rgba(255,77,184,.45); border-color: var(--pink); }
    .form-note { grid-column: 1 / -1; margin: 0; color: var(--muted); font-size: 12px; }
    .site-footer { padding: 28px 0 34px; background: #0c0a12; color: #d8cedc; }
    .footer-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 24px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 8px 18px; color: #c8b9ce; font-size: 13px; }
    .footer-links a:hover { color: var(--pink); }
    .copyright { margin-top: 20px; color: #998da1; font-size: 12px; }
    .floating { position: fixed; right: 18px; bottom: 18px; z-index: 15; display: grid; gap: 8px; }
    .floating a { padding: 10px 14px; border: 1px solid #70405f; background: #211523; color: #f8edf7; font-size: 13px; }
    .top-link { text-align: center; }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.is-visible { opacity: 1; transform: translateY(0); }
    @media (max-width: 900px) {
      .nav { min-height: 68px; }
      .menu-toggle { display: inline-flex; align-items: center; gap: 8px; }
      .nav-links { display: none; position: absolute; top: 68px; left: 0; right: 0; padding: 12px 20px 18px; border-bottom: 1px solid var(--line); background: #100d19; }
      .nav-links.is-open { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); }
      .nav-links a { padding: 11px; }
      .services, .case-grid, .reviews { grid-template-columns: repeat(2,minmax(0,1fr)); }
      .industry-list { grid-template-columns: repeat(2,1fr); }
      .articles { grid-template-columns: repeat(3,1fr); }
    }
    @media (max-width: 620px) {
      .container { width: min(var(--content), calc(100% - 32px)); }
      .hero { padding: 58px 0 42px; }
      .hero p { font-size: 16px; }
      .hero-strip { grid-template-columns: repeat(2,1fr); margin-top: 38px; }
      section { padding: 55px 0; }
      .intro-layout, .score-row, .contact-layout { grid-template-columns: 1fr; }
      .services, .case-grid, .reviews, .workflows { grid-template-columns: 1fr; }
      .step { padding: 18px 0; border-bottom: 1px solid var(--line); }
      .articles { grid-template-columns: repeat(2,minmax(0,1fr)); }
      form { grid-template-columns: 1fr; }
      .field-full, .form-note { grid-column: auto; }
      .footer-top { display: block; }
      .footer-links { margin-top: 18px; }
      .floating { right: 10px; bottom: 10px; }
      .floating a { padding: 9px 11px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }