.ct-hero {
    max-width: var(--max);
    margin: 0 auto;
    padding: clamp(80px, 14vh, 160px) var(--pad-x) clamp(30px, 5vh, 60px);
  }
  .ct-hero h1 {
    font-family: var(--font-display);
    font-size: clamp(48px, 8vw, 110px);
    line-height: 0.94;
    letter-spacing: -0.035em;
    font-weight: 400;
    margin: 22px 0 18px;
    max-width: 18ch;
  }
  .ct-hero h1 em {
    font-style: normal;
    background: linear-gradient(90deg, var(--qai), var(--quaxis), var(--qbit));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }
  .ct-hero .lead {
    color: var(--fg-2);
    max-width: 56ch;
    margin: 0;
  }
  .ct-hero-phone {
    margin: 20px 0 0;
    font-family: var(--font-mono);
    font-size: 13px;
    letter-spacing: 0.06em;
    color: var(--fg-3);
  }
  .ct-hero-phone a {
    color: var(--fg);
    margin-left: 8px;
  }
  .ct-hero-phone a:hover {
    color: var(--accent);
  }

  .ct-tabs-wrap {
    max-width: var(--max);
    margin: 0 auto;
    padding: 24px var(--pad-x) 0;
  }
  .ct-tabs {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    border-bottom: 1px solid var(--line);
    padding-bottom: 4px;
  }
  .ct-tab {
    --c: var(--fg);
    padding: 12px 18px;
    border: 1px solid var(--line);
    border-bottom: 0;
    border-top-left-radius: 12px;
    border-top-right-radius: 12px;
    margin-bottom: -1px;
    background: var(--bg-1);
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--fg-3);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: all .2s ease;
  }
  .ct-tab .d {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--c);
    box-shadow: 0 0 10px var(--c);
  }
  .ct-tab.y { --c: var(--qai); }
  .ct-tab.r { --c: var(--quaxis); }
  .ct-tab.v { --c: var(--qbit); }
  .ct-tab.n { --c: var(--fg-3); }
  .ct-tab:hover { color: var(--fg); }
  .ct-tab.active {
    background: var(--bg);
    color: var(--fg);
    border-color: var(--line-strong);
    border-bottom-color: var(--bg);
  }

  .ct-body {
    max-width: var(--max);
    margin: 0 auto;
    padding: clamp(40px, 6vh, 60px) var(--pad-x) clamp(80px, 12vh, 140px);
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 56px;
    align-items: start;
  }
  @media (max-width: 1000px) { .ct-body { grid-template-columns: 1fr; gap: 32px; } }

  .ct-form-card {
    background: var(--bg-1);
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 32px;
  }
  .ct-intro {
    margin: 0 0 24px;
  }
  .ct-intro .ix {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--c-active, var(--fg-3));
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
  }
  .ct-intro .ix::before {
    content: "";
    width: 28px;
    height: 1px;
    background: var(--c-active, var(--fg-3));
  }
  .ct-intro h2 {
    font-family: var(--font-display);
    font-size: clamp(26px, 3vw, 36px);
    line-height: 1.1;
    letter-spacing: -0.015em;
    font-weight: 500;
    margin: 0 0 12px;
  }
  .ct-intro p {
    color: var(--fg-3);
    font-size: 15px;
    line-height: 1.55;
    margin: 0;
  }

  .field {
    display: grid;
    gap: 8px;
    margin-bottom: 18px;
  }
  .field-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  @media (max-width: 600px) { .field-grid-2 { grid-template-columns: 1fr; } }
  .field label {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--fg-3);
  }
  .field input,
  .field textarea,
  .field select {
    background: var(--bg-2);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 12px 14px;
    color: var(--fg);
    font: inherit;
    font-size: 15px;
    line-height: 1.45;
    outline: none;
    transition: border-color .2s ease, background .2s ease;
    width: 100%;
    box-sizing: border-box;
    font-family: var(--font-body);
  }
  .field input:focus,
  .field textarea:focus,
  .field select:focus {
    border-color: var(--c-active, var(--accent-soft));
    background: var(--bg);
  }
  .field textarea {
    min-height: 96px;
    resize: vertical;
  }
  .field select {
    appearance: none;
    background-image:
      linear-gradient(45deg, transparent 50%, var(--fg-3) 50%),
      linear-gradient(135deg, var(--fg-3) 50%, transparent 50%);
    background-position:
      calc(100% - 18px) 18px,
      calc(100% - 13px) 18px;
    background-size: 5px 5px, 5px 5px;
    background-repeat: no-repeat;
    padding-right: 36px;
  }
  .field-hint {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.12em;
    color: var(--fg-4);
  }

  .ct-actions {
    margin-top: 24px;
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: center;
  }
  .ct-actions .btn.primary {
    background: var(--c-active, var(--fg));
    color: #000;
    border-color: var(--c-active, var(--fg));
  }
  .ct-actions .btn.primary:hover {
    filter: brightness(1.05);
    color: #000;
  }
  .ct-actions .smile {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.14em;
    color: var(--fg-4);
  }

  .ct-preview {
    position: sticky;
    top: 100px;
  }
  @media (max-width: 1000px) { .ct-preview { position: static; } }
  .mail {
    background: var(--bg-2);
    border: 1px solid var(--line);
    border-radius: 18px;
    overflow: hidden;
    font-family: var(--font-mono);
    box-shadow: 0 30px 80px -20px rgba(0,0,0,0.6);
  }
  .mail-header {
    padding: 14px 18px;
    border-bottom: 1px solid var(--line);
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--bg-3);
  }
  .mail-header .traf {
    display: flex;
    gap: 6px;
    margin-right: 6px;
  }
  .mail-header .traf span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--bg-1);
  }
  .mail-header .title {
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--fg-3);
  }
  .mail-header .live {
    margin-left: auto;
    color: var(--c-active, var(--accent));
    font-size: 10px;
    letter-spacing: 0.18em;
    display: inline-flex;
    align-items: center;
    gap: 8px;
  }
  .mail-header .live::before {
    content: "";
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--c-active, var(--accent));
    box-shadow: 0 0 10px var(--c-active, var(--accent));
    animation: live-pulse 2s ease-in-out infinite;
  }
  @keyframes live-pulse {
    0%, 100% { opacity: 0.4; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.4); }
  }

  .mail-meta {
    padding: 16px 22px 8px;
    border-bottom: 1px solid var(--line);
    display: grid;
    gap: 6px;
    font-size: 12px;
  }
  .mail-meta .row {
    display: grid;
    grid-template-columns: 60px 1fr;
    gap: 12px;
    align-items: baseline;
  }
  .mail-meta .row .l {
    color: var(--fg-4);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-size: 10px;
  }
  .mail-meta .row .v {
    color: var(--fg);
    font-family: var(--font-body);
    font-size: 13px;
  }
  .mail-meta .row .v.subj {
    color: var(--c-active, var(--fg));
    font-weight: 500;
  }

  .mail-body {
    padding: 22px;
    color: var(--fg-2);
    font-size: 14px;
    line-height: 1.65;
    font-family: var(--font-body);
    white-space: pre-wrap;
    min-height: 380px;
  }
  .mail-body .ph {
    color: var(--fg-4);
    background: var(--bg-1);
    padding: 0 6px;
    border-radius: 4px;
    border: 1px dashed var(--line);
    font-family: var(--font-mono);
    font-size: 12px;
  }
  .mail-body .ph.filled {
    background: transparent;
    border-color: transparent;
    color: var(--c-active, var(--fg));
    padding: 0;
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 500;
  }

  .mail-foot {
    padding: 12px 22px;
    border-top: 1px solid var(--line);
    font-size: 10px;
    letter-spacing: 0.18em;
    color: var(--fg-4);
    text-transform: uppercase;
    display: flex;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
  }

  @media (max-width: 640px) {
    .ct-hero { padding-top: clamp(48px, 12vh, 80px); }
    .ct-hero h1 { font-size: clamp(36px, 9vw, 48px); max-width: none; }
    .ct-tabs-wrap { padding-top: 16px; }
    .ct-tabs {
      flex-wrap: nowrap;
      overflow-x: auto;
      -webkit-overflow-scrolling: touch;
      scrollbar-width: none;
      gap: 6px;
      margin: 0 calc(-1 * var(--pad-x));
      padding: 0 var(--pad-x) 8px;
    }
    .ct-tabs::-webkit-scrollbar { display: none; }
    .ct-tab { flex-shrink: 0; padding: 10px 14px; font-size: 10px; }
    .ct-form-card { padding: 20px; }
    .ct-body { padding-top: 24px; padding-bottom: 48px; }
    .mail-body { min-height: 220px; padding: 16px; font-size: 13px; }
    .mail-meta { padding: 12px 16px 8px; }
    .mail-meta .row { grid-template-columns: 52px 1fr; gap: 8px; }
    .ct-actions { flex-direction: column; align-items: stretch; }
    .ct-actions .btn { width: 100%; justify-content: center; }
    .ct-actions .smile { text-align: center; }
  }