  <style>
/* калькулятор количества */

.section--calc {
  padding: 60px 0;
  background: #f6f9fd;
  font-family: sans-serif;
}

.container--calc {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

.section-head--left {
  text-align: left;
  margin-bottom: 30px;
}

.section-head--left h1 {
  font-size: 32px;
  margin: 10px 0;
  color: #1a2b3c;
}

.eyebrow {
  color: #2f6fd6;
  text-transform: uppercase;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 1px;
}

.calc-card {
  background: #fff;
  border-radius: 24px;
  padding: 35px;
  border: 1px solid #dde6f1;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.calc-row {
  display: grid;
  gap: 20px;
  margin-bottom: 25px;
}

/* Расширяем верхний ряд для вместимости текста */
.calc-row--top {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.calc-row--inner {
  grid-template-columns: 1.5fr 1fr auto;
  align-items: flex-end;
  padding-top: 20px;
  border-top: 1px solid #eee;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field label {
  font-size: 13px;
  font-weight: 600;
  color: #44556b;
  line-height: 1.2;
  min-height: 32px;
}

.field input,
.field select {
  height: 48px;
  border: 1px solid #cdd9e7;
  border-radius: 12px;
  padding: 0 12px;
  font-size: 15px;
  color: #1f2d3d;
  background: #fff;
  width: 100%;
  box-sizing: border-box;
}

.field input[readonly] {
  background-color: #f8fbff;
  border-color: #e2eaf3;
  color: #5a6d85;
}

.inner-rows-actions {
  display: flex;
  justify-content: flex-start;
  margin-top: -5px;
  margin-bottom: 25px;
}

.add-row-btn {
  background: #2f6fd6;
  color: #fff;
  border: none;
  height: 48px;
  padding: 0 20px;
  border-radius: 12px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}

.remove-row-btn {
  background: #f1f5f9;
  color: #64748b;
  border: none;
  height: 48px;
  padding: 0 20px;
  border-radius: 12px;
  cursor: pointer;
}

.remove-row-btn:disabled {
  opacity: 0.55;
  cursor: default;
}

/* Центрирование и ограничение ширины результата */
.calc-result-container {
  display: flex;
  justify-content: center;
  margin-top: 40px;
}

.calc-result {
  width: 100%;
  max-width: 500px;
  background: #f8fbff;
  border: 1px solid #d7e3f2;
  border-radius: 20px;
  padding: 30px;
}

.calc-result h3 {
  margin: 0 0 20px;
  font-size: 22px;
  color: #1a2b3c;
  text-align: center;
}

.calc-result__item {
  display: flex;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  font-size: 15px;
}

.calc-result__item--total {
  border-bottom: none;
  font-weight: 700;
  font-size: 18px;
  color: #1a2b3c;
  padding-top: 20px;
}

.calc-email-block {
  margin: 25px 0 15px;
}

.calc-email-block input {
  width: 100%;
  height: 48px;
  border: 1px solid #cdd9e7;
  border-radius: 12px;
  padding: 0 15px;
  box-sizing: border-box;
}

/* Согласие и сообщение возле галочки */
.personal-data-check {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  column-gap: 10px;
  row-gap: 5px;
  align-items: start;
  margin-bottom: 20px;
  font-size: 12px;
  color: #64748b;
  line-height: 1.4;
}

.personal-data-check input[type="checkbox"] {
  grid-column: 1;
  grid-row: 1;
  width: 20px;
  height: 20px;
  margin: 0;
  cursor: pointer;
}

.personal-data-check__text {
  grid-column: 2;
  grid-row: 1;
  display: block;
}

.personal-data-check a {
  color: inherit;
  text-decoration: underline;
}

.calc-checkbox-error {
  display: none;
  grid-column: 2;
  grid-row: 2;
  color: #d93025;
  font-size: 12px;
  line-height: 1.35;
}

.calc-checkbox-error.is-visible {
  display: block;
}

.submit-calc-btn {
  width: 100%;
  height: 52px;
  background: #2f6fd6;
  color: #fff;
  border: none;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
}

/* Адаптив */
@media (max-width: 992px) {
  .calc-row--top {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .calc-row--top,
  .calc-row--inner {
    grid-template-columns: 1fr;
  }

  .calc-card {
    padding: 20px;
  }

  .inner-rows-actions {
    margin-top: 0;
  }

  .add-row-btn {
    width: 100%;
  }
}

/* правка кнопки */
.form-consent {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  width: 100%;
  margin: 14px 0 18px;
  font-size: 14px;
  line-height: 1.4;
  cursor: pointer;
}

.form-consent input[type="checkbox"] {
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin: 1px 0 0;
  cursor: pointer;
}

.form-consent span {
  display: block;
  flex: 1;
}

.form-consent a {
  color: inherit;
  text-decoration: underline;
}

/* калькулятор количества */

  /* моб меню */

  /* моб меню */
.produhi-page section,
.produhi-page .section {
  width: 100%;
  max-width: none;
}

.produhi-page .container,
.produhi-page .calculator,
.produhi-page .content-block {
  max-width: 1200px;
  width: calc(100% - 32px);
  margin-left: auto;
  margin-right: auto;
}
  .input-with-unit {
  position: relative;
  width: 100%;
}

.input-with-unit input {
  width: 100%;
  padding-right: 42px !important;
}

.input-with-unit span {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: #64748b;
  font-size: 15px;
  pointer-events: none;
}
  .air-vents-calculator {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  font-family: Arial, sans-serif;
}

.calc-lines {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.calc-line {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.3fr 1fr 1fr 44px;
  gap: 10px;
  align-items: end;
  padding: 14px;
  border: 1px solid #d9e1ea;
  border-radius: 10px;
  background: #fff;
}

.calc-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.calc-field label {
  font-size: 13px;
  line-height: 1.2;
  color: #334155;
  font-weight: 600;
}

.calc-field select,
.calc-field input {
  width: 100%;
  height: 42px;
  padding: 0 10px;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  font-size: 15px;
  color: #0f172a;
  background: #fff;
  box-sizing: border-box;
}

.calc-field input[readonly] {
  background: #f8fafc;
  font-weight: 700;
}

.delete-line-btn {
  width: 42px;
  height: 42px;
  border: none;
  border-radius: 8px;
  background: #dc2626;
  color: #ffffff;
  font-size: 30px;
  font-weight: 800;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.delete-line-btn:hover {
  background: #b91c1c;
}

.add-line-btn {
  margin-top: 14px;
  height: 44px;
  padding: 0 18px;
  border: none;
  border-radius: 8px;
  background: #0ea5e9;
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
}

.add-line-btn:hover {
  background: #0284c7;
}

.distance-block {
  margin-top: 22px;
  max-width: 360px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.distance-block label {
  font-size: 14px;
  color: #334155;
  font-weight: 700;
}

.distance-block select {
  height: 42px;
  padding: 0 10px;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  font-size: 15px;
  background: #fff;
}

.calc-total-box {
  margin-top: 24px;
  padding: 20px;
  border-radius: 14px;
  background: #0b74d1;
  color: #fff;
}

.calc-total-title {
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 14px;
}

.calc-summary {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 14px;
  font-size: 15px;
}

.summary-line {
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255,255,255,0.25);
}

.summary-line--total {
  margin-top: 4px;
  padding-top: 10px;
  font-size: 17px;
  font-weight: 800;
  border-top: 1px solid rgba(255,255,255,0.45);
  border-bottom: 1px solid rgba(255,255,255,0.45);
}

.calc-total-row {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  font-size: 22px;
  font-weight: 800;
  padding-top: 12px;
  border-top: 1px solid rgba(255,255,255,0.35);
}

.calc-min-message {
  margin-top: 10px;
  font-size: 16px;
  font-weight: 700;
  color: #fff7ed;
}

.calc-note {
  margin-top: 14px;
  font-size: 14px;
  line-height: 1.45;
  color: #e0f2fe;
}

.personal-data-check {
  margin-top: 18px;
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 13px;
  line-height: 1.45;
  color: #334155;
}

.personal-data-check input {
  margin-top: 3px;
}

.personal-data-check a {
  color: #0b74d1;
  text-decoration: underline;
}

.submit-calc-btn {
  margin-top: 18px;
  width: 100%;
  min-height: 50px;
  border: none;
  border-radius: 10px;
  background: #16a34a;
  color: #fff;
  font-size: 16px;
  font-weight: 800;
  cursor: pointer;
}

.submit-calc-btn:hover {
  background: #15803d;
}

@media (max-width: 980px) {
  .calc-line {
    grid-template-columns: 1fr 1fr;
  }

  .delete-line-btn {
    width: 100%;
  }
}

@media (max-width: 560px) {
  .calc-line {
    grid-template-columns: 1fr;
  }

  .calc-total-row {
    flex-direction: column;
    gap: 6px;
  }
}
.section--calc {
  padding: 80px 0;
  background: #f4f8ff;
}

  .policy-checkbox {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 12px;
  align-items: start;
  margin-top: 4px;
  font-size: 13px;
  line-height: 1.45;
  color: var(--muted);
  cursor: pointer;
}

.policy-checkbox input {
  width: 18px;
  height: 18px;
  margin: 2px 0 0;
  accent-color: var(--blue);
  cursor: pointer;
}

.policy-checkbox a {
  color: var(--blue);
  font-weight: 800;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.policy-checkbox a:hover {
  color: var(--orange);
}
  #price-table {
  scroll-margin-top: 100px;
}
h2[id],
h3[id],
section[id] {
  scroll-margin-top: 100px;
}
  .price-table-head {
  margin-top: 60px;
}
  .mobile-table-hint {
  display: none;
}

@media (max-width: 768px) {
  .mobile-table-hint {
    display: block;
    margin-bottom: 10px;
    font-size: 13px;
    color: #6b7280;
    text-align: center;
  }
}
  .calc-table-wrap {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.calc-price-table {
  width: 100%;
  border-collapse: collapse;
}

@media (max-width: 768px) {
  .calc-price-table {
    min-width: 640px;
  }

  .calc-price-table th,
  .calc-price-table td {
    padding: 12px 10px;
    font-size: 14px;
    white-space: nowrap;
  }
}
  .price-section {
  background: #f6f8fb;
}

.price-table-wrap {
  width: 100%;
  overflow-x: auto;
  margin-top: 32px;
  border-radius: 18px;
  border: 1px solid #d7dde8;
  background: #ffffff;
  box-shadow: 0 16px 38px rgba(15, 23, 42, 0.08);
}

.price-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  background: #ffffff;
  font-size: 17px;
}

.price-table th,
.price-table td {
  border: 1px solid #d7dde8;
  padding: 13px 16px;
  text-align: center;
  transition:
    background-color .18s ease,
    color .18s ease,
    box-shadow .18s ease,
    transform .18s ease;
}

.price-table thead th {
  background: #ffffff;
  font-weight: 900;
}

.price-table__title {
  text-align: center !important;
  color: #f97316;
  min-width: 260px;
  font-weight: 900;
}

.price-table__subtitle {
  text-align: center !important;
  color: #2563eb;
  font-weight: 900;
}

.price-table__cost-title {
  color: #111827;
  font-weight: 900;
  letter-spacing: 0.04em;
}

.price-col-head {
  color: #f97316;
  font-weight: 900;
}

.price-row-head {
  color: #2563eb;
  font-weight: 900;
  background: #ffffff;
}

.price-cell {
  color: #111827;
  font-weight: 600;
  cursor: pointer;
  background: #ffffff;
}

.price-cell:hover {
  background: #fff3cd;
  color: #111827;
  font-weight: 900;
  box-shadow: inset 0 0 0 2px #f59e0b;
}

.price-cell.is-active {
  background: #fff3cd;
  color: #111827;
  font-weight: 900;
  box-shadow: inset 0 0 0 2px #f59e0b;
}

.price-col-head.is-active,
.price-row-head.is-active {
  background: #ffe08a;
  color: #111827;
  box-shadow: inset 0 0 0 2px #f59e0b;
}

.price-table tr.is-row-highlight td,
.price-table tr.is-row-highlight th.price-row-head {
  background-color: #fff8e1;
}

.price-note {
  max-width: 900px;
  margin: 18px auto 0;
  text-align: center;
  color: #64748b;
  font-size: 15px;
  line-height: 1.6;
}

@media (max-width: 640px) {
  .price-table {
    font-size: 15px;
  }

  .price-table th,
  .price-table td {
    padding: 11px 12px;
  }

  .price-table__title,
  .price-table__subtitle {
    min-width: 220px;
  }
}

  .header {
  background: #ffffff;
  border-bottom: 1px solid #e5e7eb;
}

.header__inner {
  min-height: 90px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.site-logo img {
  width: 180px;
  height: auto;
}
@media (max-width: 768px) {
  .site-logo img {
    width: 150px;
    height: auto;
  }
}
.nav {
  display: flex;
  gap: 20px;
}

.nav a {
  color: #1f2937;
  text-decoration: none;
  font-size: 16px;
}

.header-phone {
  color: #0b63ce;
  font-weight: 700;
  text-decoration: none;
}
    :root {
      --bg: #ffffff;
      --bg-soft: #f4f7fb;
      --bg-dark: #111827;
      --bg-blue: #eaf4ff;
      --text: #172033;
      --muted: #5c667a;
      --line: #dbe3ef;
      --blue: #1769e0;
      --blue-dark: #0f4fb2;
      --orange: #ff8a00;
      --orange-dark: #e67300;
      --green: #16a34a;
      --warning: #fff7df;
      --radius: 18px;
      --radius-sm: 12px;
      --shadow: 0 16px 40px rgba(15, 40, 80, .08);
      --shadow-sm: 0 8px 20px rgba(15, 40, 80, .06);
      --container: 1180px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: Inter, Manrope, Roboto, Arial, sans-serif;
      color: var(--text);
      background: var(--bg);
      line-height: 1.55;
    }

    body.no-scroll {
      overflow: hidden;
    }

    img {
      max-width: 100%;
      display: block;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

    button,
    input,
    textarea,
    select {
      font-family: inherit;
    }

    .container {
      width: min(100% - 32px, var(--container));
      margin-inline: auto;
    }

    .section {
      padding: 82px 0;
    }

    .section--soft {
      background: var(--bg-soft);
    }

    .section--blue {
      background: linear-gradient(180deg, #eef7ff 0%, #ffffff 100%);
    }

    .section--dark {
      background: var(--bg-dark);
      color: #ffffff;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border-radius: 999px;
      background: var(--bg-blue);
      color: var(--blue-dark);
      font-weight: 700;
      font-size: 14px;
      margin-bottom: 18px;
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--blue);
    }

    h1,
    h2,
    h3 {
      margin: 0;
      line-height: 1.12;
      letter-spacing: -0.03em;
    }

    h1 {
      font-size: clamp(34px, 5vw, 58px);
      max-width: 820px;
    }

    h2 {
      font-size: clamp(28px, 3.4vw, 42px);
      margin-bottom: 18px;
    }

    h3 {
      font-size: 21px;
      margin-bottom: 10px;
    }

    p {
      margin: 0;
    }

    .lead {
      font-size: 19px;
      color: var(--muted);
      max-width: 860px;
    }

    .section-head {
      margin-bottom: 36px;
    }

    .section-head--center {
      text-align: center;
    }

    .section-head--center .lead {
      margin-inline: auto;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 50px;
      padding: 14px 22px;
      border-radius: 12px;
      border: 0;
      cursor: pointer;
      font-weight: 800;
      font-size: 16px;
      transition: .2s ease;
      text-align: center;
    }

    .btn--primary {
      background: var(--orange);
      color: #111827;
    }

    .btn--primary:hover {
      background: var(--orange-dark);
      color: #ffffff;
      transform: translateY(-1px);
    }

    .btn--blue {
      background: var(--blue);
      color: #ffffff;
    }

    .btn--blue:hover {
      background: var(--blue-dark);
      transform: translateY(-1px);
    }

    .btn--ghost {
      background: #ffffff;
      color: var(--blue);
      border: 1px solid var(--line);
    }

    .btn--ghost:hover {
      border-color: var(--blue);
      transform: translateY(-1px);
    }

    .btn-row {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      align-items: center;
    }

    .muted {
      color: var(--muted);
    }

    .small {
      font-size: 14px;
      color: var(--muted);
    }

    .header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: #ffd400;
  border-bottom: 1px solid #e0b800;
}

    .header__inner {
      min-height: 78px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }

    .logo {
      display: flex;
      align-items: center;
      gap: 12px;
      min-width: 230px;
    }

    .logo__mark {
      width: 42px;
      height: 42px;
      border-radius: 12px;
      background: linear-gradient(135deg, var(--blue), #6bb7ff);
      display: grid;
      place-items: center;
      color: #fff;
      font-weight: 900;
      letter-spacing: -0.06em;
    }

    .logo__title {
      font-weight: 900;
      line-height: 1.1;
    }

    .logo__subtitle {
      display: block;
      font-size: 12px;
      color: var(--muted);
      font-weight: 600;
      margin-top: 2px;
    }

    .nav {
      display: flex;
      align-items: center;
      gap: 22px;
      font-size: 15px;
      color: #2d3748;
      font-weight: 700;
    }

    .nav a:hover {
      color: var(--blue);
    }

    .header__contacts {
      display: flex;
      align-items: center;
      gap: 14px;
    }

    .phone {
      text-align: right;
      white-space: nowrap;
    }

    .phone__num {
      display: block;
      font-weight: 900;
      font-size: 18px;
    }

    .phone__region {
      display: block;
      font-size: 12px;
      color: var(--muted);
      font-weight: 700;
    }

    .burger {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 12px;
      border: 1px solid var(--line);
      background: #fff;
      position: relative;
    }

    .burger span,
    .burger::before,
    .burger::after {
      content: "";
      position: absolute;
      left: 11px;
      right: 11px;
      height: 2px;
      background: var(--text);
      border-radius: 2px;
    }

    .burger span {
      top: 21px;
    }

    .burger::before {
      top: 14px;
    }

    .burger::after {
      top: 28px;
    }

    .hero {
      padding: 68px 0 72px;
      background:
        radial-gradient(circle at 85% 10%, rgba(23, 105, 224, .16), transparent 30%),
        linear-gradient(180deg, #f7fbff 0%, #ffffff 100%);
      overflow: hidden;
    }

    .hero__grid {
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 44px;
      align-items: center;
    }

    .hero__text {
      display: grid;
      gap: 24px;
    }

    .hero__subtitle {
      font-size: 20px;
      color: var(--muted);
      max-width: 760px;
    }

    .badges {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 9px 12px;
      border-radius: 999px;
      background: #fff;
      border: 1px solid var(--line);
      font-weight: 800;
      font-size: 14px;
      box-shadow: var(--shadow-sm);
    }

    .badge::before {
      content: "✓";
      color: var(--green);
      font-weight: 900;
    }

    .hero__note {
      max-width: 650px;
      padding: 14px 16px;
      border-left: 4px solid var(--blue);
      background: #fff;
      border-radius: 0 12px 12px 0;
      color: var(--muted);
    }

    .hero__media {
      position: relative;
    }

    .photo-placeholder {
      min-height: 470px;
      border-radius: 28px;
      background:
        linear-gradient(rgba(17, 24, 39, .1), rgba(17, 24, 39, .45)),
        url("mt-content/uploads/2026/chad/hero-sverlenie-produhov.webp") center/cover no-repeat,
        linear-gradient(135deg, #d7e8ff, #7aaee8);
      box-shadow: var(--shadow);
      overflow: hidden;
      position: relative;
    }

    .photo-placeholder::after {
      content: "Фото: алмазное сверление продуха";
      position: absolute;
      left: 18px;
      bottom: 18px;
      padding: 8px 12px;
      border-radius: 999px;
      background: rgba(255, 255, 255, .88);
      color: var(--text);
      font-weight: 800;
      font-size: 13px;
    }

    .floating-card {
      position: absolute;
      right: -14px;
      top: 40px;
      background: #fff;
      border-radius: 18px;
      box-shadow: var(--shadow);
      padding: 18px;
      width: 220px;
      border: 1px solid var(--line);
    }

    .floating-card strong {
      display: block;
      font-size: 26px;
      line-height: 1;
      color: var(--blue);
      margin-bottom: 6px;
    }

    .trust-strip {
      margin-top: -28px;
      position: relative;
      z-index: 2;
    }

    .trust-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 14px;
    }

    .trust-card,
    .card {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      box-shadow: var(--shadow-sm);
    }

    .trust-card {
      padding: 22px;
    }

    .trust-card strong {
      display: block;
      font-size: 18px;
      margin-bottom: 6px;
    }

    .grid {
      display: grid;
      gap: 18px;
    }

    .grid--4 {
      grid-template-columns: repeat(4, 1fr);
    }

    .grid--3 {
      grid-template-columns: repeat(3, 1fr);
    }

    .grid--2 {
      grid-template-columns: repeat(2, 1fr);
    }

    .card {
      padding: 24px;
      transition: .2s ease;
    }

    .card:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow);
    }

    .card__link {
      display: inline-flex;
      margin-top: 16px;
      color: var(--blue);
      font-weight: 900;
    }

    .icon {
      width: 44px;
      height: 44px;
      border-radius: 14px;
      background: var(--bg-blue);
      color: var(--blue);
      display: grid;
      place-items: center;
      font-weight: 900;
      margin-bottom: 16px;
    }

    .split {
      display: grid;
      grid-template-columns: .95fr 1.05fr;
      gap: 42px;
      align-items: center;
    }

    .split--reverse {
      grid-template-columns: 1.05fr .95fr;
    }

    .image-box {
      min-height: 420px;
      border-radius: 26px;
      background:
        linear-gradient(rgba(17, 24, 39, .05), rgba(17, 24, 39, .35)),
        url("mt-content/uploads/2026/chad/gotoviy-produh.webp") center/cover no-repeat,
        linear-gradient(135deg, #dcecff, #9abfe8);
      box-shadow: var(--shadow);
      position: relative;
      overflow: hidden;
    }

    .image-box--low {
      background:
        linear-gradient(rgba(17, 24, 39, .05), rgba(17, 24, 39, .35)),
        url("mt-content/uploads/2026/chad/nizkiy-cokol.webp") center/cover no-repeat,
        linear-gradient(135deg, #dcecff, #9abfe8);
    }

.image-box--vlaga {
  background: none;
  min-height: auto;
}

.image-box--vlaga img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 26px;
}

.image-box--section-photo {
  margin-top: 28px;
  margin-bottom: 28px;
}

    .check-list {
      display: grid;
      gap: 14px;
      margin: 24px 0;
      padding: 0;
      list-style: none;
    }

    .check-list li {
      position: relative;
      padding-left: 32px;
    }

    .check-list li::before {
      content: "✓";
      position: absolute;
      left: 0;
      top: 0;
      width: 22px;
      height: 22px;
      border-radius: 7px;
      display: grid;
      place-items: center;
      background: #eaf8ef;
      color: var(--green);
      font-weight: 900;
      font-size: 14px;
    }

    .note {
      padding: 18px 20px;
      border-radius: var(--radius);
      background: var(--warning);
      border: 1px solid #f1d889;
      color: #4a3b12;
    }

    .price-card {
      padding: 26px;
      border-radius: var(--radius);
      background: #fff;
      border: 1px solid var(--line);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .price {
      font-size: 34px;
      line-height: 1;
      color: var(--blue);
      font-weight: 950;
      letter-spacing: -0.04em;
    }

    .price span {
      font-size: 15px;
      color: var(--muted);
      font-weight: 700;
      letter-spacing: 0;
    }

    .form-box {
      background: #fff;
      border-radius: 24px;
      border: 1px solid var(--line);
      box-shadow: var(--shadow);
      padding: 28px;
    }

    .form-grid {
      display: grid;
      gap: 14px;
    }

    .field {
      display: grid;
      gap: 7px;
    }

    .field label {
      font-weight: 800;
      font-size: 14px;
    }

    input,
    textarea,
    select {
      width: 100%;
      border: 1px solid var(--line);
      border-radius: 12px;
      padding: 14px 14px;
      font-size: 16px;
      background: #fff;
      outline: none;
      color: var(--text);
    }

    textarea {
      min-height: 110px;
      resize: vertical;
    }

    input:focus,
    textarea:focus,
    select:focus {
      border-color: var(--blue);
      box-shadow: 0 0 0 4px rgba(23, 105, 224, .12);
    }

    .cta-band {
      padding: 34px;
      border-radius: 28px;
      background:
        radial-gradient(circle at 90% 10%, rgba(255, 138, 0, .22), transparent 30%),
        linear-gradient(135deg, var(--blue), #0b3b83);
      color: #fff;
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 24px;
      align-items: center;
      box-shadow: var(--shadow);
    }

    .cta-band .lead {
      color: rgba(255, 255, 255, .84);
    }

    .comparison {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 18px;
      margin-top: 26px;
    }

    .comparison__item {
      border-radius: var(--radius);
      padding: 24px;
      border: 1px solid var(--line);
      background: #fff;
    }

    .comparison__item--good {
      border-color: rgba(22, 163, 74, .25);
      background: #f0fbf4;
    }

    .comparison__item--bad {
      background: #fff6f1;
      border-color: rgba(255, 138, 0, .3);
    }

    .steps {
      counter-reset: step;
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
    }

    .step {
      position: relative;
      padding: 24px;
      border-radius: var(--radius);
      background: #fff;
      border: 1px solid var(--line);
      box-shadow: var(--shadow-sm);
    }

    .step::before {
      counter-increment: step;
      content: counter(step);
      width: 38px;
      height: 38px;
      border-radius: 12px;
      display: grid;
      place-items: center;
      background: var(--blue);
      color: #fff;
      font-weight: 900;
      margin-bottom: 16px;
    }

    .case-card {
      overflow: hidden;
      padding: 0;
    }

    .case-card__img {
  min-height: 210px;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.case-card__img--1 {
  background-image:
    linear-gradient(rgba(17,24,39,.05), rgba(17,24,39,.35)),
    url("mt-content/uploads/2026/chad/primer-1.webp");
}

.case-card__img--2 {
  background-image:
    linear-gradient(rgba(17,24,39,.05), rgba(17,24,39,.35)),
    url("mt-content/uploads/2026/chad/primer-2.webp");
}

.case-card__img--3 {
  background-image:
    linear-gradient(rgba(17,24,39,.05), rgba(17,24,39,.35)),
    url("mt-content/uploads/2026/chad/primer-3.webp");
}

.case-card__img--4 {
  background-image:
    linear-gradient(rgba(17,24,39,.05), rgba(17,24,39,.35)),
    url("mt-content/uploads/2026/chad/primer-4.webp");
}

    .case-card__body {
      padding: 24px;
    }

    .tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 14px;
    }

    .tag {
      padding: 6px 10px;
      border-radius: 999px;
      background: var(--bg-blue);
      color: var(--blue-dark);
      font-weight: 800;
      font-size: 13px;
    }

    .faq {
      display: grid;
      gap: 12px;
    }

    details {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 16px;
      padding: 0;
      box-shadow: var(--shadow-sm);
      overflow: hidden;
    }

    summary {
      cursor: pointer;
      padding: 20px 24px;
      font-weight: 900;
      list-style: none;
      display: flex;
      justify-content: space-between;
      gap: 20px;
    }

    summary::-webkit-details-marker {
      display: none;
    }

    summary::after {
      content: "+";
      color: var(--blue);
      font-size: 24px;
      line-height: 1;
      font-weight: 900;
    }

    details[open] summary::after {
      content: "−";
    }
.mobile-menu summary::after {
  content: none !important;
  display: none !important;
}
    details p {
      padding: 0 24px 22px;
      color: var(--muted);
    }

    .cities {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 22px;
    }

    .city {
      padding: 8px 12px;
      border-radius: 999px;
      background: #fff;
      border: 1px solid var(--line);
      color: var(--text);
      font-weight: 700;
      font-size: 14px;
    }
    .footer a,
    .footer .muted {
      color: rgba(255,255,255,.72);
    }

    .footer__links {
      display: grid;
      gap: 10px;
    }

    .mobile-bar {
      display: none;
      position: fixed;
      left: 0;
      right: 0;
      bottom: 0;
      z-index: 60;
      background: #fff;
      border-top: 1px solid var(--line);
      padding: 10px 12px;
      box-shadow: 0 -12px 30px rgba(17, 24, 39, .12);
      gap: 10px;
    }

    .mobile-bar .btn {
      flex: 1;
      min-height: 48px;
      padding-inline: 12px;
      font-size: 15px;
    }

    .desktop-float {
      position: fixed;
      right: 22px;
      bottom: 22px;
      z-index: 55;
      display: grid;
      gap: 10px;
    }

    .desktop-float .btn {
      box-shadow: var(--shadow);
    }

    @media (max-width: 1080px) {
      .nav {
        display: none;
      }

      .burger {
        display: inline-block;
      }

      .hero__grid,
      .split,
      .split--reverse {
        grid-template-columns: 1fr;
      }

      .floating-card {
        right: 18px;
      }

      .trust-grid,
      .grid--4 {
        grid-template-columns: repeat(2, 1fr);
      }

      .steps {
        grid-template-columns: repeat(2, 1fr);
      }

      .cta-band {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 760px) {
      .container {
        width: min(100% - 24px, var(--container));
      }

      .section {
        padding: 56px 0;
      }

      .header__inner {
        min-height: 68px;
      }

      .logo {
        min-width: 0;
      }

      .logo__subtitle {
        display: none;
      }

      .header__contacts .phone {
        display: none;
      }

      .header__contacts > .btn {
        display: none;
      }

      .hero {
        padding: 42px 0 54px;
      }

      .hero__subtitle,
      .lead {
        font-size: 16px;
      }

      .btn-row {
        display: grid;
        grid-template-columns: 1fr;
      }

      .btn {
        width: 100%;
      }

      .photo-placeholder,
      .image-box {
        min-height: 300px;
        border-radius: 20px;
      }

      .floating-card {
        position: static;
        width: auto;
        margin-top: 12px;
      }

      .trust-strip {
        margin-top: 0;
        padding-top: 18px;
      }

      .trust-grid,
      .grid--4,
      .grid--3,
      .grid--2,
      .comparison,
      .steps,
      .footer__grid {
        grid-template-columns: 1fr;
      }

      .card,
      .trust-card,
      .price-card,
      .form-box {
        padding: 20px;
      }

      .cta-band {
        padding: 24px;
        border-radius: 20px;
      }

      .cities {
        max-height: 230px;
        overflow: auto;
        padding-right: 4px;
      }

      .desktop-float {
        display: none;
      }

      .mobile-bar {
        display: flex;
      }

      .footer {
        padding-bottom: 104px;
      }
	  html {
  scroll-behavior: smooth;
}

.scroll-top {
  position: fixed;
  left: 24px;
  bottom: 24px;
  width: 152px;
  height: 52px;
  border-radius: 50%;
  background: #ffcc00;
  color: #111111;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  font-weight: 800;
  text-decoration: none;
  box-shadow: 0 12px 30px rgba(0, 0, 0, .18);
  z-index: 1000;
  transition: .2s ease;
}

.scroll-top:hover {
  background: #111111;
  color: #ffffff;
  transform: translateY(-3px);
}
@media (max-width: 768px) {
  .scroll-top {
    left: 16px;
    bottom: 90px;
    width: 46px;
    height: 46px;
    font-size: 24px;
  }
}
    }
	a.scroll-top,
.scroll-top {
  position: fixed !important;
  left: 24px !important;
  bottom: 24px !important;

  width: 56px !important;
  min-width: 56px !important;
  max-width: 56px !important;

  height: 56px !important;
  min-height: 56px !important;
  max-height: 56px !important;

  display: flex !important;
  align-items: center !important;
  justify-content: center !important;

  border-radius: 50% !important;
  background: #ff8a00 !important;
  color: #111827 !important;

  font-size: 34px !important;
  font-weight: 900 !important;
  line-height: 1 !important;
  text-decoration: none !important;

  border: 2px solid rgba(255, 255, 255, .85) !important;
  box-shadow: 0 14px 32px rgba(0, 0, 0, .28) !important;

  z-index: 2147483647 !important;
  opacity: 1 !important;
  visibility: visible !important;
  pointer-events: auto !important;

  padding: 0 !important;
  margin: 0 !important;
  transform: none !important;
}

a.scroll-top:hover,
.scroll-top:hover {
  background: #111827 !important;
  color: #ffffff !important;
  transform: translateY(-2px) !important;
}

@media (min-width: 761px) {
  a.scroll-top,
  .scroll-top {
    left: 24px !important;
    bottom: 24px !important;
    width: 56px !important;
    height: 56px !important;
    display: flex !important;
  }
}

@media (max-width: 760px) {
  a.scroll-top,
  .scroll-top {
    left: 14px !important;
    bottom: 82px !important;
    width: 48px !important;
    min-width: 48px !important;
    max-width: 48px !important;
    height: 48px !important;
    min-height: 48px !important;
    max-height: 48px !important;
    font-size: 28px !important;
  }
}
/* Исправление иконки мобильного меню */

/* Исправление иконки мобильного меню */

/* секция что такое продухи */
.section--ventilation {
    overflow: hidden;
  }

  .section--ventilation .container {
    width: min(100% - 32px, 1180px);
    margin-inline: auto;
  }

  .ventilation-card {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    width: 100%;
    max-width: 920px;
    margin: 32px auto 0;
    overflow: hidden;
    background: #fff;
    border: 1px solid #e1e6eb;
    border-top: 4px solid #2d6f9f;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(25, 45, 60, 0.08);
    box-sizing: border-box;
  }

  .ventilation-card__item {
    min-width: 0;
    padding: 28px 30px;
    box-sizing: border-box;
  }

  .ventilation-card__item + .ventilation-card__item {
    border-left: 1px solid #e1e6eb;
  }

  .ventilation-card__item h3 {
    margin: 0 0 12px;
    color: #2d6f9f;
    font-size: 21px;
    line-height: 1.3;
  }

  .ventilation-card__item p {
    margin: 0;
    color: #4c5660;
    font-size: 16px;
    line-height: 1.65;
  }

  @media (max-width: 700px) {
    .ventilation-card {
      grid-template-columns: 1fr;
      margin-top: 24px;
    }

    .ventilation-card__item {
      padding: 22px 20px;
    }

    .ventilation-card__item + .ventilation-card__item {
      border-top: 1px solid #e1e6eb;
      border-left: 0;
    }
  }
/* секция что такое продухи */
  </style>