:root {
      color-scheme: dark;
      --bg: oklch(0.105 0 0);
      --surface: oklch(0.165 0.011 145);
      --surface-2: oklch(0.225 0.018 145);
      --ink: oklch(0.955 0.006 145);
      --muted: oklch(0.735 0.024 145);
      --primary: oklch(0.705 0.105 140);
      --primary-strong: oklch(0.61 0.135 140);
      --accent: oklch(0.79 0.13 78);
      --danger: oklch(0.62 0.17 28);
      --line: oklch(0.31 0.02 145);
      --panel: color-mix(in oklch, var(--surface) 88%, black);
      --max: 1180px;
      --radius: 14px;
      --ease: cubic-bezier(.16, 1, .3, 1);
      font-family: "Microsoft YaHei UI", "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", system-ui, sans-serif;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    html, body { max-width: 100%; }
    body {
      margin: 0;
      overflow-x: hidden;
      background:
        radial-gradient(circle at 76% 4%, color-mix(in oklch, var(--primary) 20%, transparent) 0 18rem, transparent 34rem),
        linear-gradient(180deg, oklch(0.13 0.005 145), var(--bg) 28rem);
      color: var(--ink);
      font-size: 16px;
      line-height: 1.75;
      text-rendering: optimizeLegibility;
    }

    a { color: inherit; text-decoration: none; }
    img, svg { max-width: 100%; display: block; }
    button, input, textarea, select { font: inherit; }
    .skip {
      position: fixed;
      left: 1rem;
      top: -5rem;
      z-index: 20;
      background: var(--accent);
      color: oklch(0.12 0 0);
      padding: .6rem .9rem;
      border-radius: 999px;
    }
    .skip:focus { top: 1rem; }
    .wrap { width: min(var(--max), calc(100% - 40px)); margin-inline: auto; }

    header {
      position: sticky;
      top: 0;
      z-index: 10;
      border-bottom: 1px solid color-mix(in oklch, var(--line), transparent 25%);
      background: color-mix(in oklch, var(--bg) 86%, transparent);
      backdrop-filter: blur(16px);
    }
    .nav {
      min-height: 68px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
    }
    .brand {
      display: flex;
      align-items: center;
      gap: .75rem;
      font-weight: 800;
      letter-spacing: .01em;
    }
    .mark {
      width: 34px;
      height: 34px;
      border: 1px solid var(--primary);
      border-radius: 10px;
      display: grid;
      place-items: center;
      color: var(--primary);
      background: color-mix(in oklch, var(--primary) 12%, transparent);
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: clamp(.6rem, 2vw, 1.4rem);
      color: var(--muted);
      font-size: .94rem;
    }
    .nav-links a:hover { color: var(--ink); }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: .5rem;
      min-height: 44px;
      padding: .72rem 1.05rem;
      border-radius: 999px;
      border: 1px solid transparent;
      cursor: pointer;
      transition: transform .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease);
      white-space: nowrap;
    }
    .btn:hover { transform: translateY(-2px); }
    .btn.primary {
      background: var(--primary-strong);
      color: white;
      border-color: color-mix(in oklch, var(--primary), white 10%);
    }
    .btn.secondary {
      background: transparent;
      border-color: var(--line);
      color: var(--ink);
    }

    .hero {
      position: relative;
      isolation: isolate;
      min-height: min(980px, calc(100svh - 68px));
      padding: clamp(58px, 9vw, 118px) 0 clamp(38px, 7vw, 78px);
      overflow: hidden;
    }
    .hero::after {
      content: "";
      position: absolute;
      inset: 0;
      z-index: -1;
      pointer-events: none;
      background:
        linear-gradient(90deg, color-mix(in oklch, var(--bg) 94%, transparent) 0 42%, color-mix(in oklch, var(--bg) 55%, transparent) 64%, color-mix(in oklch, var(--bg) 18%, transparent)),
        linear-gradient(180deg, transparent 0 72%, var(--bg));
    }
    .hero-tunnel {
      position: absolute;
      inset: 0;
      z-index: -2;
      background:
        radial-gradient(circle at 70% 44%, color-mix(in oklch, var(--primary) 22%, transparent), transparent 28rem),
        linear-gradient(180deg, oklch(0.08 0 0), var(--bg));
    }
    .hero-tunnel canvas {
      width: 100%;
      height: 100%;
      display: block;
    }
    .hero-grid {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: minmax(0, 1fr) minmax(280px, .48fr);
      gap: clamp(2rem, 5vw, 5rem);
      align-items: center;
    }
    .hero-grid > * { min-width: 0; }
    .signal {
      display: inline-flex;
      align-items: center;
      gap: .55rem;
      color: var(--accent);
      background: color-mix(in oklch, var(--accent) 11%, transparent);
      border: 1px solid color-mix(in oklch, var(--accent) 35%, transparent);
      border-radius: 999px;
      padding: .42rem .72rem;
      font-size: .9rem;
    }
    .pulse {
      width: .55rem;
      height: .55rem;
      border-radius: 50%;
      background: var(--accent);
      box-shadow: 0 0 0 0 color-mix(in oklch, var(--accent) 45%, transparent);
      animation: pulse 2.2s infinite;
    }
    h1, h2, h3 { margin: 0; line-height: 1.12; text-wrap: balance; letter-spacing: -.025em; }
    h1 {
      margin-top: 1.35rem;
      max-width: 12ch;
      font-size: clamp(2.65rem, 6vw, 4.9rem);
    }
    .hero-copy {
      margin: 1.3rem 0 0;
      max-width: 66ch;
      color: var(--muted);
      font-size: clamp(1rem, 1.8vw, 1.15rem);
      text-wrap: pretty;
    }
    .hero-actions { display: flex; flex-wrap: wrap; gap: .85rem; margin-top: 2rem; }
    .contact-strip {
      display: flex;
      flex-wrap: wrap;
      gap: .7rem;
      margin-top: 1.15rem;
    }
    .contact-chip, .copy-chip {
      display: inline-flex;
      align-items: center;
      gap: .5rem;
      min-height: 38px;
      border: 1px solid var(--line);
      border-radius: 999px;
      background: color-mix(in oklch, var(--surface), transparent 10%);
      color: var(--ink);
      padding: .4rem .72rem;
      font-size: .92rem;
      max-width: 100%;
    }
    .copy-chip {
      cursor: pointer;
      color: var(--primary);
      border-color: color-mix(in oklch, var(--primary), transparent 35%);
    }
    .copy-chip[data-copied="true"] {
      color: var(--accent);
      border-color: color-mix(in oklch, var(--accent), transparent 30%);
    }
    .proof-row {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 1px;
      margin-top: 2.4rem;
      border: 1px solid var(--line);
      background: var(--line);
      border-radius: var(--radius);
      overflow: hidden;
    }
    .proof {
      background: color-mix(in oklch, var(--surface) 88%, black);
      padding: 1rem;
      min-height: 102px;
    }
    .proof strong { display: block; color: var(--ink); font-size: 1.28rem; line-height: 1.2; }
    .proof span { display: block; margin-top: .35rem; color: var(--muted); font-size: .9rem; }

    .tunnel-hud {
      justify-self: end;
      width: min(360px, 100%);
      border: 1px solid color-mix(in oklch, var(--primary), transparent 42%);
      border-radius: 14px;
      background: color-mix(in oklch, var(--bg) 78%, transparent);
      padding: 1rem;
      backdrop-filter: blur(10px);
    }
    .hud-score {
      display: flex;
      align-items: end;
      gap: .8rem;
      margin: 1rem 0;
    }
    .hud-score b {
      color: var(--primary);
      font-size: clamp(2.2rem, 5vw, 4rem);
      line-height: .9;
    }
    .hud-score span,
    .tunnel-hud p {
      color: var(--muted);
    }
    .tunnel-hud p {
      margin: 1rem 0 0;
      font-size: .92rem;
    }

    .visual {
      position: relative;
      min-width: 0;
      min-height: 520px;
      border: 1px solid var(--line);
      border-radius: 18px;
      background:
        linear-gradient(180deg, color-mix(in oklch, var(--surface-2), transparent 4%), color-mix(in oklch, var(--bg), var(--surface) 38%));
      padding: clamp(1rem, 2vw, 1.45rem);
      overflow: hidden;
    }
    .visual::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(color-mix(in oklch, var(--line), transparent 40%) 1px, transparent 1px),
        linear-gradient(90deg, color-mix(in oklch, var(--line), transparent 40%) 1px, transparent 1px);
      background-size: 36px 36px;
      mask-image: linear-gradient(180deg, black, transparent 72%);
      opacity: .38;
      pointer-events: none;
    }
    .terminal {
      position: relative;
      z-index: 1;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: color-mix(in oklch, black 38%, var(--surface));
      padding: 1rem;
      overflow: hidden;
    }
    .terminal-top { display: flex; justify-content: space-between; color: var(--muted); font-size: .82rem; }
    .log {
      margin-top: 1rem;
      display: grid;
      gap: .52rem;
      font-family: Consolas, "Microsoft YaHei UI", monospace;
      font-size: .82rem;
      color: color-mix(in oklch, var(--primary) 84%, white);
    }
    .log div { display: flex; justify-content: space-between; gap: 1rem; }
    .log span:first-child { flex: 1 1 auto; }
    .log span:last-child { flex: 0 0 auto; }
    .log span {
      min-width: 0;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }
    .map {
      position: relative;
      z-index: 1;
      margin-top: 1rem;
      aspect-ratio: 1.16;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: color-mix(in oklch, var(--bg), var(--surface) 30%);
      overflow: hidden;
    }
    .map svg { width: 100%; height: 100%; }
    .trace {
      stroke: var(--primary);
      stroke-width: 2;
      fill: none;
      stroke-dasharray: 8 14;
      animation: dash 4.5s linear infinite;
    }
    .trace.alt { stroke: var(--accent); animation-duration: 6s; opacity: .75; }
    .node { fill: var(--surface-2); stroke: var(--line); stroke-width: 1.5; }
    .node.hot { fill: color-mix(in oklch, var(--primary) 24%, var(--surface)); stroke: var(--primary); }
    .node.warn { fill: color-mix(in oklch, var(--accent) 18%, var(--surface)); stroke: var(--accent); }
    .node-label { fill: var(--ink); font-size: 12px; font-weight: 700; }
    .status-card {
      position: absolute;
      right: 1.1rem;
      bottom: 1.1rem;
      z-index: 2;
      width: min(280px, calc(100% - 2.2rem));
      border: 1px solid color-mix(in oklch, var(--primary), var(--line) 40%);
      border-radius: var(--radius);
      background: color-mix(in oklch, var(--bg) 78%, var(--primary) 10%);
      padding: 1rem;
    }
    .status-card b { display: block; font-size: 1.55rem; line-height: 1; color: var(--primary); }
    .status-card span { color: var(--muted); font-size: .9rem; }

    section { padding: clamp(58px, 8vw, 104px) 0; }
    .section-head {
      display: flex;
      justify-content: space-between;
      gap: 2rem;
      align-items: end;
      margin-bottom: clamp(1.8rem, 4vw, 3rem);
    }
    .section-head h2 { font-size: clamp(2rem, 4.4vw, 4rem); max-width: 13ch; }
    .section-head p { max-width: 58ch; color: var(--muted); margin: 0; }
    .band {
      border-block: 1px solid var(--line);
      background: color-mix(in oklch, var(--surface), transparent 24%);
    }

    .services {
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 1px;
      background: var(--line);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      overflow: hidden;
    }
    .service-menu, .service-detail { background: var(--surface); }
    .service-menu { display: grid; }
    .service-tab {
      min-height: 96px;
      padding: 1.1rem 1.2rem;
      border: 0;
      border-bottom: 1px solid var(--line);
      background: transparent;
      color: var(--muted);
      text-align: left;
      cursor: pointer;
    }
    .service-tab:last-child { border-bottom: 0; }
    .service-tab[aria-selected="true"] {
      color: var(--ink);
      background: color-mix(in oklch, var(--primary) 11%, transparent);
    }
    .service-tab strong { display: block; font-size: 1.05rem; color: inherit; }
    .service-tab span { display: block; margin-top: .25rem; }
    .service-detail { padding: clamp(1.4rem, 3vw, 2.2rem); }
    .service-detail h3 { font-size: clamp(1.5rem, 3vw, 2.4rem); }
    .service-detail p { color: var(--muted); max-width: 62ch; }
    .check-list { display: grid; gap: .75rem; margin: 1.3rem 0 0; padding: 0; list-style: none; }
    .check-list li { display: flex; gap: .7rem; align-items: flex-start; color: var(--ink); }
    .check-list li::before { content: "✓"; color: var(--primary); font-weight: 900; }

    .matrix {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
      gap: 1px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      overflow: hidden;
      background: var(--line);
    }
    .matrix article {
      background: var(--surface);
      min-height: 210px;
      padding: 1.2rem;
    }
    .matrix h3 { font-size: 1.28rem; margin-bottom: .7rem; }
    .matrix p { color: var(--muted); margin: 0; }
    .keyword-flow {
      display: flex;
      flex-wrap: wrap;
      gap: .65rem;
      margin-top: 1.6rem;
    }
    .keyword-flow a, .keyword-flow span {
      border: 1px solid var(--line);
      border-radius: 999px;
      padding: .45rem .72rem;
      color: var(--muted);
      background: color-mix(in oklch, var(--surface), transparent 18%);
    }
    .breadcrumb {
      display: flex;
      flex-wrap: wrap;
      gap: .45rem;
      color: var(--muted);
      font-size: .92rem;
      margin-bottom: 1.2rem;
    }
    .breadcrumb a { color: var(--primary); }
    .page-hero {
      padding: clamp(54px, 8vw, 104px) 0 clamp(34px, 6vw, 70px);
      border-bottom: 1px solid var(--line);
      background:
        radial-gradient(circle at 80% 0, color-mix(in oklch, var(--primary) 18%, transparent) 0 18rem, transparent 32rem),
        linear-gradient(180deg, color-mix(in oklch, var(--surface), transparent 35%), transparent);
    }
    .page-hero h1 {
      max-width: 13ch;
      font-size: clamp(2.45rem, 6.5vw, 5.2rem);
    }
    .page-hero p {
      max-width: 68ch;
      color: var(--muted);
      font-size: clamp(1rem, 1.7vw, 1.14rem);
      margin: 1.2rem 0 0;
      text-wrap: pretty;
    }
    .toc {
      display: flex;
      flex-wrap: wrap;
      gap: .7rem;
      margin-top: 1.6rem;
    }
    .toc a {
      border: 1px solid var(--line);
      border-radius: 999px;
      padding: .42rem .7rem;
      color: var(--ink);
      background: color-mix(in oklch, var(--surface), transparent 12%);
    }
    .content-grid {
      display: grid;
      grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
      gap: 1px;
      border: 1px solid var(--line);
      border-radius: 18px;
      overflow: hidden;
      background: var(--line);
    }
    .content-grid > article,
    .content-grid > aside,
    .content-panel {
      background: var(--surface);
      padding: clamp(1.2rem, 3vw, 2rem);
    }
    .content-grid h2,
    .content-panel h2 {
      font-size: clamp(1.7rem, 3.7vw, 3.2rem);
      margin-bottom: 1rem;
    }
    .content-grid h3,
    .content-panel h3 {
      font-size: clamp(1.2rem, 2.4vw, 1.65rem);
      margin: 1.3rem 0 .45rem;
    }
    .content-grid p,
    .content-panel p {
      color: var(--muted);
      margin: 0 0 1rem;
      max-width: 74ch;
    }
    .plain-list {
      display: grid;
      gap: .75rem;
      margin: 1rem 0 0;
      padding: 0;
      list-style: none;
    }
    .plain-list li {
      border: 1px solid var(--line);
      border-radius: 12px;
      padding: .9rem;
      color: var(--muted);
      background: color-mix(in oklch, var(--bg), var(--surface) 35%);
    }
    .plain-list strong {
      display: block;
      color: var(--ink);
      margin-bottom: .2rem;
    }
    .inline-cta {
      display: flex;
      flex-wrap: wrap;
      gap: .75rem;
      align-items: center;
      margin-top: 1.3rem;
    }
    .related-links {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: .8rem;
      margin-top: 1.2rem;
    }
    .related-links a {
      border: 1px solid var(--line);
      border-radius: 12px;
      background: color-mix(in oklch, var(--bg), var(--surface) 35%);
      padding: .9rem;
      color: var(--ink);
    }
    .related-links span {
      display: block;
      color: var(--muted);
      font-size: .9rem;
      margin-top: .2rem;
    }
    .tag {
      display: inline-flex;
      margin-bottom: 1.1rem;
      border: 1px solid color-mix(in oklch, var(--primary), transparent 35%);
      color: var(--primary);
      border-radius: 999px;
      padding: .2rem .55rem;
      font-size: .82rem;
    }

    .process {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 1px;
      background: var(--line);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      overflow: hidden;
    }
    .step { background: var(--panel); padding: 1.15rem; min-height: 240px; }
    .step b { color: var(--accent); font-size: 1.2rem; }
    .step h3 { margin-top: 1.5rem; font-size: 1.18rem; }
    .step p { color: var(--muted); margin-bottom: 0; font-size: .95rem; }

    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 1px;
      border: 1px solid var(--line);
      border-radius: 18px;
      overflow: hidden;
      background: var(--line);
    }
    .price-card {
      position: relative;
      display: grid;
      align-content: space-between;
      gap: 1.25rem;
      min-height: 360px;
      padding: clamp(1.15rem, 2.4vw, 1.65rem);
      background:
        linear-gradient(180deg, color-mix(in oklch, var(--surface-2), transparent 12%), var(--surface));
    }
    .price-card.featured {
      background:
        radial-gradient(circle at 78% 0, color-mix(in oklch, var(--primary) 24%, transparent), transparent 13rem),
        linear-gradient(180deg, color-mix(in oklch, var(--surface-2), var(--primary) 8%), var(--surface));
    }
    .quota {
      position: absolute;
      right: 1rem;
      top: 1rem;
      color: white;
      background: var(--primary-strong);
      border-radius: 999px;
      padding: .2rem .55rem;
      font-weight: 800;
      font-size: .86rem;
    }
    .price-card h3 { font-size: clamp(1.35rem, 2.4vw, 2rem); padding-right: 6rem; }
    .price-card p { color: var(--muted); margin: 0; }
    .price {
      border: 1px solid color-mix(in oklch, var(--line), transparent 8%);
      border-radius: 12px;
      background: color-mix(in oklch, var(--bg), var(--surface) 38%);
      padding: 1rem;
    }
    .price small { display: block; color: var(--muted); }
    .price strong {
      display: block;
      color: var(--accent);
      font-size: clamp(1.65rem, 3.2vw, 2.8rem);
      line-height: 1.04;
      letter-spacing: -.02em;
    }
    .price-card .btn { width: 100%; }
    .price-card[data-selected="true"] {
      outline: 2px solid var(--accent);
      outline-offset: -2px;
    }
    .price-note {
      margin-top: 1rem;
      color: var(--muted);
      font-size: .94rem;
    }

    .seo-article {
      display: grid;
      grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
      gap: 1px;
      border: 1px solid var(--line);
      border-radius: 18px;
      overflow: hidden;
      background: var(--line);
    }
    .seo-article > div {
      background: var(--surface);
      padding: clamp(1.25rem, 3vw, 2rem);
    }
    .seo-article h3 { font-size: clamp(1.45rem, 3vw, 2.45rem); margin-bottom: 1rem; }
    .seo-article p { color: var(--muted); margin: 0 0 1rem; }
    .seo-list {
      display: grid;
      gap: .8rem;
      margin: 0;
      padding: 0;
      list-style: none;
    }
    .seo-list li {
      border: 1px solid var(--line);
      border-radius: 12px;
      padding: .9rem;
      color: var(--muted);
      background: color-mix(in oklch, var(--bg), var(--surface) 38%);
    }
    .seo-list strong { display: block; color: var(--ink); margin-bottom: .25rem; }

    .calculator {
      display: grid;
      grid-template-columns: .9fr 1.1fr;
      gap: 1px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      overflow: hidden;
      background: var(--line);
    }
    .calc-inputs, .calc-result { background: var(--surface); padding: clamp(1.2rem, 3vw, 2rem); }
    .field { display: grid; gap: .45rem; margin-bottom: 1rem; }
    .field label { color: var(--ink); font-weight: 700; }
    .field input, .field select, .field textarea {
      width: 100%;
      min-height: 46px;
      border: 1px solid var(--line);
      border-radius: 10px;
      background: color-mix(in oklch, var(--bg), var(--surface) 35%);
      color: var(--ink);
      padding: .65rem .8rem;
      outline: none;
    }
    .field input:focus, .field select:focus, .field textarea:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px color-mix(in oklch, var(--primary) 22%, transparent);
    }
    .field small { color: var(--muted); }
    .result-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 1rem;
      margin-top: 1.2rem;
    }
    .result-box {
      border: 1px solid var(--line);
      border-radius: 12px;
      padding: 1rem;
      min-height: 118px;
      background: color-mix(in oklch, var(--bg), var(--surface) 32%);
    }
    .result-box strong { display: block; color: var(--primary); font-size: clamp(1.65rem, 4vw, 2.5rem); line-height: 1.05; }
    .result-box span { color: var(--muted); font-size: .9rem; }

    .compare {
      width: 100%;
      border-collapse: collapse;
      overflow: hidden;
      border-radius: var(--radius);
      border: 1px solid var(--line);
      display: table;
    }
    .compare th, .compare td {
      border-bottom: 1px solid var(--line);
      padding: 1rem;
      text-align: left;
      vertical-align: top;
    }
    .compare th { background: var(--surface-2); }
    .compare td { color: var(--muted); background: var(--surface); }
    .compare tr:last-child td { border-bottom: 0; }
    .compare strong { color: var(--ink); }

    .faq { display: grid; gap: .8rem; }
    details {
      border: 1px solid var(--line);
      border-radius: 12px;
      background: var(--surface);
      padding: 1rem 1.1rem;
    }
    summary {
      cursor: pointer;
      font-weight: 800;
      color: var(--ink);
    }
    details p { color: var(--muted); margin-bottom: 0; }

    .cta {
      display: grid;
      grid-template-columns: 1fr .75fr;
      gap: 1px;
      border: 1px solid var(--line);
      border-radius: 18px;
      background: var(--line);
      overflow: hidden;
    }
    .cta-copy, .form { background: var(--surface); padding: clamp(1.4rem, 4vw, 2.8rem); }
    .cta h2 { font-size: clamp(2rem, 5vw, 4.4rem); max-width: 12ch; }
    .cta p { color: var(--muted); max-width: 62ch; }
    .form button { width: 100%; }
    .contact-panel {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: .8rem;
      margin-top: 1.4rem;
    }
    .contact-panel button {
      border: 1px solid var(--line);
      border-radius: 12px;
      background: color-mix(in oklch, var(--bg), var(--surface) 34%);
      color: var(--ink);
      padding: .9rem;
      text-align: left;
      cursor: pointer;
    }
    .contact-panel strong { display: block; color: var(--primary); font-size: 1.1rem; }
    #formNote { color: var(--accent); min-height: 1.75rem; }

    footer {
      border-top: 1px solid var(--line);
      padding: 2rem 0;
      color: var(--muted);
      font-size: .92rem;
    }
    .foot { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }

    [data-reveal] {
      opacity: 1;
      transform: none;
      transition: opacity .7s var(--ease), transform .7s var(--ease);
    }
    [data-reveal].is-visible { opacity: 1; transform: translateY(0); }

    @keyframes pulse {
      0% { box-shadow: 0 0 0 0 color-mix(in oklch, var(--accent) 38%, transparent); }
      70% { box-shadow: 0 0 0 12px transparent; }
      100% { box-shadow: 0 0 0 0 transparent; }
    }
    @keyframes dash { to { stroke-dashoffset: -120; } }

    @media (max-width: 900px) {
      .hero-grid, .services, .calculator, .cta, .seo-article, .content-grid { grid-template-columns: 1fr; }
      .hero::after {
        background:
          linear-gradient(180deg, color-mix(in oklch, var(--bg) 72%, transparent), color-mix(in oklch, var(--bg) 94%, transparent) 62%, var(--bg));
      }
      .tunnel-hud {
        justify-self: stretch;
      }
      .visual { min-height: 480px; }
      .section-head { display: grid; }
      .process { grid-template-columns: repeat(2, minmax(0, 1fr)); }
      .pricing-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
      .nav-links a:not(.btn) { display: none; }
    }
    @media (max-width: 620px) {
      .wrap { width: min(100% - 28px, var(--max)); }
      .nav-links { display: none; }
      h1 {
        font-size: clamp(2.05rem, 10vw, 2.45rem);
        max-width: 9ch;
      }
      .contact-strip > * {
        flex: 1 1 calc(50% - .7rem);
        justify-content: center;
      }
      .contact-strip .contact-chip {
        flex-basis: 100%;
      }
      .log div {
        display: block;
      }
      .log span {
        display: block;
      }
      .proof-row, .result-grid, .process { grid-template-columns: 1fr; }
      .pricing-grid, .contact-panel { grid-template-columns: 1fr; }
      .hero-actions .btn { width: 100%; }
      .visual { min-height: auto; }
      .map svg {
        transform: scale(.82);
        transform-origin: center;
      }
      .status-card {
        position: relative;
        right: auto;
        bottom: auto;
        width: 100%;
        margin-top: 1rem;
      }
      .compare { display: block; overflow-x: auto; white-space: nowrap; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        scroll-behavior: auto !important;
        transition-duration: .01ms !important;
      }
      [data-reveal] { opacity: 1; transform: none; }
    }