:root { --layout-unit: 1vw; --header-unit: 1vw; --site-header-height: 72px; --site-font: "Noto Sans SC", "Noto Sans", sans-serif; }
/* Responsive composition: PSD desktop, tablet grids, and readable phone layouts. */
body {
  position: relative;
  width: 100%;
  max-width: 2560px;
  margin-left: auto;
  margin-right: auto;
}

img {
  max-width: 100%;
}

button,
a,
input,
textarea {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 2px solid #ff9900;
  outline-offset: 4px;
}

.desktop #contact .quote-desktop,
.desktop #contact .home-quote-form,
.home-content #contact .quote-desktop,
.home-content #contact .home-quote-form {
  left: 50.78125vw;
  left: calc(50.78125vw);
  left: calc(50.78125 * var(--layout-unit));
  top: 10.9375vw;
  top: calc(10.9375vw);
  top: calc(10.9375 * var(--layout-unit));
  width: 36.5625vw;
  width: calc(36.5625vw);
  width: calc(36.5625 * var(--layout-unit));
}

@media (max-width: 1199px) {

  .desktop,
.home-content,

  .overlay-layer {
    display: none;
  }

  .mobile {
    display: block;
  }

  .mobile header {
    padding-left: 20px;
    padding-left: max(20px, 50% - 560px);
    padding-right: 20px;
    padding-right: max(20px, 50% - 560px);
  }

  .mobile header button {
    min-width: 44px;
    min-height: 44px;
  }

  .mobile nav {
    padding-left: 20px;
    padding-left: max(20px, 50% - 560px);
    padding-right: 20px;
    padding-right: max(20px, 50% - 560px);
  }

  .mobile nav a {
    display: block;
    padding-top: 10px;
    padding-bottom: 10px;
  }

  .hero {
    padding: 64px 24px;
    padding: calc(64px) 24px;
    padding: calc(max(64px, min(10vw, 120px))) 24px;
  }

  .hero h1 {
    font-size: 30px;
    font-size: calc(30px);
    font-size: calc(max(30px, min(4.5vw, 60px)));
  }

  .hero p {
    max-width: 760px;
    margin-left: auto;
    margin-right: auto;
    font-size: 15px;
    font-size: calc(15px);
    font-size: calc(max(15px, min(1.6vw, 18px)));
  }

  .mob-section {
    padding-top: 40px;
    padding-bottom: 40px;
    padding-top: calc(40px);
    padding-top: calc(max(40px, min(6vw, 72px)));
    padding-bottom: calc(40px);
    padding-bottom: calc(max(40px, min(6vw, 72px)));
    padding-left: 20px;
    padding-left: max(20px, 50% - 560px);
    padding-right: 20px;
    padding-right: max(20px, 50% - 560px);
  }

  .mob-section h2 {
    font-size: 26px;
    font-size: calc(26px);
    font-size: calc(max(26px, min(3vw, 38px)));
    line-height: 1.5;
    text-wrap: balance;
  }

  .mob-section p {
    word-wrap: anywhere;
  }

  .card-grid {
    display: grid;
    grid-template-columns: min0;
    grid-template-columns: minmax(0, 1fr);
    grid-gap: 20px;
    gap: 20px;
    margin-top: 24px;
    margin-bottom: 24px;
  }

  .card-grid>article {
    min-width: 0;
    margin: 0;
  }

  .photo {
    max-height: 480px;
    object-fit: cover;
    margin-bottom: 24px;
  }

  .mobile-form {
    max-width: 760px;
    margin-left: auto;
    margin-right: auto;
  }

  .mobile-form input,
  .mobile-form textarea {
    font-size: 16px;
  }

  .mobile-form .quote {
    gap: 14px;
  }

  .mobile-form button,
  .mobile .btn {
    min-height: 44px;
  }

  dialog {
    width: 480px;
    width: min(480px, 100% - 32px);
    max-height: calc(100vh - 48px);
    max-height: calc(100dvh - 48px);
    overflow-y: auto;
  }
}

@media (min-width: 640px) and (max-width: 1199px) {
  .card-grid {
    grid-template-columns: repeat(2, min0);
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  #m-process .card-grid {
    grid-template-columns: repeat(3, min0);
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .mobile-faq {
    display: grid;
    grid-template-columns: repeat(2, min0);
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
    grid-gap: 16px;
    gap: 16px;
  }

  .mobile-faq details {
    min-width: 0;
    margin: 0;
  }
}

@media (min-width: 1024px) and (max-width: 1199px) {

  #m-products .card-grid,
  #m-advantages .card-grid,
  #m-quality .card-grid,
  #m-applications .card-grid {
    grid-template-columns: repeat(3, min0);
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 374px) {
  .mobile-form .quote {
    grid-template-columns: min0;
    grid-template-columns: minmax(0, 1fr);
  }

  .hero {
    padding-left: 20px;
    padding-right: 20px;
  }

  .mobile article {
    padding: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .btn {
    transition: none;
  }
}