:root {
      color-scheme: light;
      --ink: #28231f;
      --muted: #716861;
      --orange: #ef6b2e;
      --orange-deep: #c9471c;
      --amber: #f5a33b;
      --cream: #fff8f1;
      --paper: #fffdf9;
      --line: #eedfd2;
      --soft: #f9eee4;
      --green: #315e4c;
      --shadow: 0 18px 48px rgba(102, 57, 30, .09);
      --container: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 92px; }
    body {
      margin: 0;
      color: var(--ink);
      background: linear-gradient(180deg, #fff8f1 0, #fffdf9 29%, #fff8f1 100%);
      font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
      font-size: 16px;
      line-height: 1.7;
    }
    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;
      border-bottom: 1px solid rgba(238, 223, 210, .85);
      background: rgba(255, 250, 245, .94);
      backdrop-filter: blur(14px);
    }
    .header-row {
      min-height: 76px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }
    .brand { display: inline-flex; align-items: center; gap: 11px; flex: 0 0 auto; }
    .brand img { display: block; width: 42px; max-height: 42px; object-fit: contain; }
    .brand-name { font-size: 18px; line-height: 1.2; font-weight: 800; letter-spacing: -.04em; }
    .brand-caption { display: block; margin-top: 3px; color: var(--muted); font-size: 10px; letter-spacing: .13em; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; flex-wrap: nowrap; }
    .nav-links a {
      padding: 10px 11px;
      color: #51463e;
      font-size: 13px;
      white-space: nowrap;
      transition: color .2s ease;
    }
    .nav-links a:hover { color: var(--orange-deep); }
    .nav-links .nav-cta { margin-left: 10px; padding: 10px 17px; color: #fff; background: var(--orange); border-radius: 999px; font-weight: 700; }
    .nav-links .nav-cta:hover { color: #fff; background: var(--orange-deep); }
    .menu-toggle {
      display: none;
      width: 42px;
      height: 42px;
      border: 1px solid var(--line);
      border-radius: 12px;
      background: #fff;
      color: var(--ink);
      cursor: pointer;
    }
    .hero { overflow: hidden; position: relative; padding: 92px 0 74px; }
    .hero::before, .hero::after { content: ""; position: absolute; z-index: 0; pointer-events: none; border-radius: 50%; }
    .hero::before {
      width: 390px; height: 390px; right: -105px; top: -90px;
      border: 1px solid rgba(239,107,46,.18);
      box-shadow: 0 0 0 36px rgba(239,107,46,.035), 0 0 0 78px rgba(239,107,46,.025);
      animation: orbit 18s linear infinite;
    }
    .hero::after {
      width: 14px; height: 14px; right: 16%; top: 22%;
      background: var(--amber); box-shadow: 0 0 0 10px rgba(245,163,59,.13);
      animation: pulse 3s ease-in-out infinite;
    }
    .hero-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(260px, .8fr); gap: 54px; align-items: center; position: relative; z-index: 1; }
    .eyebrow {
      display: inline-flex; align-items: center; gap: 9px;
      color: var(--orange-deep); font-size: 12px; font-weight: 800; letter-spacing: .13em; text-transform: uppercase;
    }
    .eyebrow::before { content: ""; width: 25px; height: 2px; background: var(--orange); }
    h1, h2, h3, p { margin-top: 0; }
    h1 { max-width: 690px; margin: 18px 0; font-size: clamp(38px, 6vw, 68px); line-height: 1.12; letter-spacing: -.055em; }
    .hero h1 em { color: var(--orange-deep); font-style: normal; }
    .hero-copy { max-width: 650px; margin-bottom: 27px; color: #65584f; font-size: 17px; }
    .actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
    .button {
      display: inline-flex; justify-content: center; align-items: center; gap: 9px;
      min-height: 48px; padding: 12px 21px; border: 1px solid transparent;
      border-radius: 12px; font-weight: 750; transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
    }
    .button:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(156, 68, 28, .17); }
    .button-primary { color: #fff; background: linear-gradient(135deg, #f47b37, #db4d21); }
    .button-primary:hover { background: var(--orange-deep); }
    .button-secondary { color: var(--ink); background: #fffdf9; border-color: var(--line); }
    .button-small { min-height: 40px; padding: 9px 15px; font-size: 14px; }
    .hero-note { margin: 17px 0 0; color: var(--muted); font-size: 13px; }
    .hero-panel {
      position: relative; padding: 26px; border: 1px solid rgba(235, 196, 165, .8);
      border-radius: 26px; background: rgba(255, 253, 249, .86); box-shadow: var(--shadow);
    }
    .hero-panel::after {
      content: ""; position: absolute; width: 72px; height: 72px; right: -14px; bottom: -14px;
      border: 1px solid rgba(239,107,46,.34); border-radius: 20px; transform: rotate(14deg); z-index: -1;
    }
    .panel-kicker { color: var(--muted); font-size: 12px; font-weight: 700; letter-spacing: .12em; }
    .panel-title { margin: 6px 0 17px; font-size: 22px; letter-spacing: -.03em; }
    .model-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
    .model-cloud span, .tag {
      display: inline-flex; align-items: center; padding: 6px 10px; border: 1px solid #f0dfd1;
      border-radius: 999px; color: #604c3f; background: #fff8f1; font-size: 12px; line-height: 1.4;
    }
    .panel-foot { display: flex; justify-content: space-between; gap: 15px; align-items: center; margin-top: 21px; padding-top: 17px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
    .panel-foot strong { color: var(--orange-deep); }
    .metrics { padding: 0 0 34px; }
    .metric-row { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); border-radius: 18px; background: var(--paper); overflow: hidden; }
    .metric { padding: 20px 22px; }
    .metric + .metric { border-left: 1px solid var(--line); }
    .metric strong { display: block; margin-bottom: 3px; color: var(--orange-deep); font-size: 21px; letter-spacing: -.03em; }
    .metric span { color: var(--muted); font-size: 13px; }
    .section { padding: 76px 0; }
    .section-soft { background: linear-gradient(135deg, rgba(255,242,229,.82), rgba(255,251,246,.82)); border-block: 1px solid rgba(238,223,210,.7); }
    .section-head { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 29px; }
    .section-head > div { max-width: 690px; }
    .section-head h2 { margin: 8px 0 9px; font-size: clamp(28px, 4vw, 42px); line-height: 1.2; letter-spacing: -.045em; }
    .section-head p { margin: 0; color: var(--muted); }
    .intro-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 25px; align-items: stretch; }
    .intro-copy { padding: 30px; border-radius: 20px; color: #fff8f1; background: #352a24; }
    .intro-copy h3 { margin-bottom: 13px; color: #fff; font-size: 24px; }
    .intro-copy p { margin-bottom: 0; color: #eadbd0; }
    .intro-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .intro-item { padding: 17px; border: 1px solid var(--line); border-radius: 15px; background: var(--paper); }
    .intro-item strong { display: block; margin-bottom: 5px; font-size: 15px; }
    .intro-item span { color: var(--muted); font-size: 13px; }
    .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .service-card {
      min-height: 173px; padding: 21px; border: 1px solid var(--line); border-radius: 17px;
      background: rgba(255,253,249,.9); transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
    }
    .service-card:hover { transform: translateY(-4px); border-color: #e8b38e; box-shadow: var(--shadow); }
    .service-no { display: inline-flex; margin-bottom: 13px; color: var(--orange-deep); font-size: 11px; font-weight: 800; letter-spacing: .1em; }
    .service-card h3 { margin-bottom: 7px; font-size: 17px; }
    .service-card p { margin: 0; color: var(--muted); font-size: 13px; }
    .service-note { margin: 20px 0 0; color: var(--muted); font-size: 13px; }
    .workflow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; counter-reset: step; }
    .step { position: relative; padding: 24px 19px 20px; border-top: 2px solid #e9b28e; background: rgba(255,255,255,.57); }
    .step::before { counter-increment: step; content: "0" counter(step); display: block; margin-bottom: 18px; color: var(--orange-deep); font-size: 13px; font-weight: 850; letter-spacing: .08em; }
    .step h3 { margin-bottom: 7px; font-size: 17px; }
    .step p { margin: 0; color: var(--muted); font-size: 13px; }
    .solution-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 15px; }
    .solution { padding: 22px; border-radius: 17px; background: var(--paper); border: 1px solid var(--line); }
    .solution-label { display: inline-block; margin-bottom: 11px; color: var(--green); font-size: 12px; font-weight: 800; }
    .solution h3 { margin-bottom: 8px; font-size: 18px; }
    .solution p { margin: 0; color: var(--muted); font-size: 13px; }
    .network-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 30px; align-items: start; }
    .network-copy { padding: 25px; border-radius: 20px; background: #f8e8d9; }
    .network-copy h3 { margin-bottom: 9px; font-size: 22px; }
    .network-copy p { margin-bottom: 0; color: #66564a; }
    .network-tags { display: flex; flex-wrap: wrap; gap: 8px; align-content: start; }
    .network-tags .tag { padding: 9px 13px; background: #fffdf9; font-size: 13px; }
    .project-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
    .project-card { overflow: hidden; border: 1px solid var(--line); border-radius: 18px; background: var(--paper); }
    .project-image { padding: 12px; background: #f7ece2; }
    .project-image img { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: contain; border-radius: 10px; }
    .project-body { padding: 18px 20px 20px; }
    .project-body h3 { margin-bottom: 6px; font-size: 18px; }
    .project-body p { margin: 0; color: var(--muted); font-size: 13px; }
    .project-square { display: grid; grid-template-columns: 142px 1fr; gap: 20px; align-items: center; margin-top: 18px; padding: 17px; border: 1px solid var(--line); border-radius: 18px; background: #fffdf9; }
    .project-square img { display: block; width: 100%; aspect-ratio: 1; object-fit: contain; border-radius: 12px; background: #f8eee6; }
    .project-square h3 { margin-bottom: 6px; font-size: 18px; }
    .project-square p { margin: 0; color: var(--muted); font-size: 13px; }
    .rating-layout { display: grid; grid-template-columns: .72fr 1.28fr; gap: 22px; align-items: stretch; }
    .rating-card { display: flex; flex-direction: column; justify-content: center; padding: 29px; border-radius: 19px; color: #fff; background: linear-gradient(145deg, #db5425, #ef8138); }
    .rating-card .eyebrow { color: #fff2e8; }
    .rating-card .eyebrow::before { background: #ffd29e; }
    .rating-score { margin: 15px 0 2px; font-size: 58px; line-height: 1; font-weight: 850; letter-spacing: -.06em; }
    .stars { color: #ffe1a9; font-size: 20px; letter-spacing: .12em; }
    .rating-card p { margin: 12px 0 0; color: #fff0e5; font-size: 13px; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 18px; background: var(--paper); }
    .comparison { width: 100%; border-collapse: collapse; min-width: 560px; }
    .comparison th, .comparison td { padding: 13px 16px; text-align: left; border-bottom: 1px solid #f1e7de; font-size: 13px; }
    .comparison th { color: #6b5548; background: #fcf2e9; font-size: 12px; }
    .comparison tr:last-child td { border-bottom: 0; }
    .comparison td:first-child { font-weight: 700; }
    .good { color: #315e4c; font-weight: 750; }
    .compare-note { margin: 11px 0 0; color: var(--muted); font-size: 12px; }
    .review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .review { padding: 20px; border: 1px solid var(--line); border-radius: 16px; background: #fffdf9; }
    .review blockquote { margin: 0 0 16px; color: #50463e; font-size: 14px; }
    .review footer { padding: 0; border: 0; color: var(--muted); background: none; font-size: 12px; font-weight: 700; }
    .review footer::before { content: "— "; color: var(--orange); }
    .articles { display: grid; grid-template-columns: repeat(5, 1fr); gap: 11px; }
    .article-link { min-height: 112px; display: flex; flex-direction: column; justify-content: space-between; padding: 16px; border: 1px solid var(--line); border-radius: 15px; background: #fffdf9; transition: border-color .2s ease, transform .2s ease; }
    .article-link:hover { transform: translateY(-3px); border-color: #e3a27b; }
    .article-link strong { font-size: 14px; line-height: 1.5; }
    .article-link span { color: var(--orange-deep); font-size: 12px; }
    .faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 16px; }
    details { border: 1px solid var(--line); border-radius: 13px; background: var(--paper); }
    details[open] { border-color: #e8b28f; }
    summary { position: relative; padding: 15px 42px 15px 17px; cursor: pointer; list-style: none; font-size: 14px; font-weight: 750; }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; position: absolute; right: 17px; top: 50%; color: var(--orange-deep); font-size: 20px; transform: translateY(-50%); }
    details[open] summary::after { content: "−"; }
    details p { margin: 0; padding: 0 17px 16px; color: var(--muted); font-size: 13px; }
    .contact-grid { display: grid; grid-template-columns: .78fr 1.22fr; gap: 24px; align-items: start; }
    .contact-card { padding: 25px; border-radius: 19px; color: #fff7f0; background: #352a24; }
    .contact-card h3 { margin-bottom: 8px; color: #fff; font-size: 23px; }
    .contact-card > p { color: #eadbd0; font-size: 14px; }
    .contact-list { display: grid; gap: 10px; margin-top: 20px; }
    .contact-list a, .contact-list span { color: #fff; font-size: 14px; overflow-wrap: anywhere; }
    .contact-list strong { display: inline-block; min-width: 89px; color: #f5b477; }
    .qr-wrap { width: 126px; padding: 8px; margin-top: 18px; border-radius: 12px; background: #fff; }
    .qr-wrap img { display: block; width: 100%; }
    .form-card { padding: 25px; border: 1px solid var(--line); border-radius: 19px; background: var(--paper); }
    .form-card h3 { margin-bottom: 5px; font-size: 21px; }
    .form-card > p { margin-bottom: 20px; color: var(--muted); font-size: 13px; }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .field { display: grid; gap: 6px; }
    .field-full { grid-column: 1 / -1; }
    .field label { color: #51463e; font-size: 13px; font-weight: 700; }
    .field input, .field select, .field textarea { width: 100%; border: 1px solid #e9d9cc; border-radius: 10px; padding: 11px 12px; color: var(--ink); background: #fff; outline: none; }
    .field input:focus, .field select:focus, .field textarea:focus { border-color: var(--orange); box-shadow: 0 0 0 3px rgba(239,107,46,.12); }
    .field textarea { min-height: 112px; resize: vertical; }
    .form-submit { margin-top: 16px; border: 0; cursor: pointer; }
    .join-strip { display: flex; align-items: center; justify-content: space-between; gap: 25px; padding: 24px 27px; border: 1px solid #efc6a8; border-radius: 18px; background: linear-gradient(110deg, #fff1e4, #fffaf5); }
    .join-strip h3 { margin: 0 0 5px; font-size: 21px; }
    .join-strip p { margin: 0; color: var(--muted); font-size: 14px; }
    .site-footer { margin-top: 0; padding: 29px 0 24px; border-top: 1px solid var(--line); color: #4e433b; background: #fff8f1; }
    .footer-top { display: flex; justify-content: space-between; align-items: start; gap: 30px; }
    .footer-brand { max-width: 330px; }
    .footer-brand strong { display: block; margin-bottom: 5px; color: var(--ink); font-size: 16px; }
    .footer-brand p { margin: 0; color: var(--muted); font-size: 13px; }
    .friend-links { display: flex; justify-content: flex-end; flex-wrap: wrap; gap: 7px 15px; max-width: 610px; }
    .friend-links a { color: #65574d; font-size: 12px; }
    .friend-links a:hover { color: var(--orange-deep); }
    .copyright { margin-top: 20px; padding-top: 14px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
    .float-tools { position: fixed; z-index: 15; right: 18px; bottom: 20px; display: grid; gap: 8px; }
    .float-tools a, .float-tools button {
      display: grid; place-items: center; width: 48px; min-height: 48px; padding: 5px;
      border: 1px solid #ecd7c6; border-radius: 15px; color: #47372c; background: #fffdf9;
      box-shadow: 0 8px 24px rgba(77,49,30,.12); font-size: 11px; font-weight: 750; text-align: center; cursor: pointer;
    }
    .float-tools a:hover, .float-tools button:hover { color: #fff; border-color: var(--orange); background: var(--orange); }
    .reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
    .reveal.is-visible { opacity: 1; transform: translateY(0); }
    @keyframes orbit { to { transform: rotate(360deg); } }
    @keyframes pulse { 50% { transform: scale(.76); box-shadow: 0 0 0 16px rgba(245,163,59,.07); } }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }
    @media (max-width: 980px) {
      .header-row { gap: 10px; }
      .nav-links a { padding-inline: 7px; font-size: 12px; }
      .nav-links .nav-cta { margin-left: 5px; padding-inline: 12px; }
      .hero-grid { gap: 30px; }
      .articles { grid-template-columns: repeat(3, 1fr); }
    }
    @media (max-width: 760px) {
      .container { width: min(var(--container), calc(100% - 32px)); }
      .header-row { min-height: 68px; }
      .menu-toggle { display: inline-grid; place-items: center; }
      .nav-links {
        display: none; position: absolute; top: calc(100% + 1px); left: 0; right: 0;
        align-items: stretch; flex-direction: column; gap: 0; padding: 8px 16px 15px;
        border-bottom: 1px solid var(--line); background: #fffaf5; box-shadow: 0 14px 22px rgba(74,44,25,.08);
      }
      .nav-links.is-open { display: flex; }
      .nav-links a { padding: 10px 8px; font-size: 14px; }
      .nav-links .nav-cta { margin: 6px 0 0; text-align: center; }
      .hero { padding: 66px 0 48px; }
      .hero-grid, .intro-grid, .network-layout, .rating-layout, .contact-grid { grid-template-columns: 1fr; }
      .hero-panel { max-width: 520px; }
      .metric-row { grid-template-columns: repeat(2, 1fr); }
      .metric:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
      .metric:nth-child(4) { border-top: 1px solid var(--line); }
      .service-grid, .solution-grid { grid-template-columns: repeat(2, 1fr); }
      .workflow { grid-template-columns: repeat(2, 1fr); }
      .review-grid { grid-template-columns: repeat(2, 1fr); }
      .faq-grid { grid-template-columns: 1fr; }
      .section { padding: 58px 0; }
      .footer-top { flex-direction: column; }
      .friend-links { justify-content: flex-start; }
    }
    @media (max-width: 520px) {
      .hero { padding-top: 52px; }
      h1 { font-size: 42px; }
      .hero-copy { font-size: 15px; }
      .hero-panel { padding: 21px; }
      .section-head { display: block; }
      .section-head .button { margin-top: 17px; }
      .service-grid, .solution-grid, .workflow, .review-grid, .project-grid { grid-template-columns: 1fr; }
      .service-card { min-height: auto; }
      .articles { grid-template-columns: 1fr 1fr; }
      .project-square { grid-template-columns: 95px 1fr; gap: 13px; padding: 12px; }
      .form-grid { grid-template-columns: 1fr; }
      .field-full { grid-column: auto; }
      .join-strip { align-items: flex-start; flex-direction: column; }
      .float-tools { right: 10px; bottom: 12px; }
      .float-tools a, .float-tools button { width: 43px; min-height: 43px; }
    }