.block-diff {
  background: #fff;
  padding: var(--section-pad-y) 0;
}

.block-diff__inner {
  box-sizing: border-box;
  width: 100%;
  max-width: none;
  margin-inline: 0;
  padding-inline: var(--layout-inline);
  --diff-card-min: clamp(140px, 22vw, 168px);
  --diff-features-gap: clamp(14px, 2vw, 20px);
  position: relative;
}

@media (min-width: 901px) {
  .block-diff__inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    grid-template-rows: auto 1fr;
    grid-template-areas:
      "lead fig"
      "feats fig";
    column-gap: clamp(28px, 4vw, 48px);
    row-gap: clamp(18px, 2.4vw, 28px);
    align-items: start;
  }
}

.block-diff__lead {
  grid-area: lead;
  min-width: 0;
}

.block-diff__index-cell {
  min-width: 0;
}

.block-diff__figure .block-diff__index-cell {
  position: absolute;
  top: 0;
  right: 0;
  z-index: 4;
}

.block-diff__intro {
  margin: 0 0 clamp(18px, 2.5vw, 26px);
}

.block-diff__intro .block-diff__label {
  text-transform: none;
}

.block-diff__title {
  margin: 0 0 clamp(10px, 1.5vw, 14px);
  font-size: clamp(1.15rem, 2.4vw, 1.75rem);
  font-weight: 800;
  line-height: 1.2;
  color: #1a1a1a;
  max-width: 36rem;
}

.block-diff__sub {
  margin: 0 0 clamp(20px, 2.8vw, 28px);
  font-size: clamp(0.95rem, 1.45vw, 1.08rem);
  font-weight: 700;
  line-height: 1.35;
  color: #59595b;
  max-width: 34rem;
}

.block-diff__features {
  grid-area: feats;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--diff-features-gap);
  align-self: start;
  min-width: 0;
}

.block-diff__feature {
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  min-width: 0;
  min-height: clamp(140px, 22vw, 168px);
  padding: clamp(16px, 2.2vw, 22px);
  background: #f0f2f2;
  border: 1px solid rgba(0, 0, 0, 0.06);
}

.block-diff__feature--empty {
  padding: 0;
  min-height: clamp(140px, 22vw, 168px);
  background: #f0f2f2;
  border: 1px dashed rgba(0, 0, 0, 0.08);
}

.block-diff__icon {
  position: relative;
  flex-shrink: 0;
  width: clamp(46px, 7.8vw, 58px);
  height: clamp(46px, 7.8vw, 58px);
  color: #513172;
  box-sizing: border-box;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100' fill='none' stroke='%23513172' stroke-width='1.15' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M7 25L7 7L25 7'/%3E%3Cpath d='M75 7L93 7L93 25'/%3E%3Cpath d='M7 75L7 93L25 93'/%3E%3Cpath d='M93 75L93 93L75 93'/%3E%3C/svg%3E")
    center / 100% 100% no-repeat;
}

.block-diff__icon-svg {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  display: block;
  width: calc(100% - 10px);
  height: calc(100% - 10px);
  max-width: 36px;
  max-height: 36px;
}

.block-diff__feature-title {
  margin: 0;
  font-size: clamp(0.82rem, 1.2vw, 0.95rem);
  font-weight: 700;
  line-height: 1.25;
  color: #513172;
}

.block-diff__feature-text {
  margin: 0;
  font-size: clamp(0.72rem, 1.08vw, 0.82rem);
  font-weight: 500;
  line-height: 1.45;
  color: #555;
}

.block-diff__index {
  position: static;
  z-index: 3;
}

.block-diff__figure {
  grid-area: fig;
  position: relative;
  box-sizing: border-box;
  width: 100%;
  min-width: 0;
  min-height: 0;
  align-self: stretch;
  justify-self: stretch;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  margin: 0;
  padding: clamp(48px, 6vw, 56px) clamp(8px, 1.5vw, 20px) 0;
  background: #fff;
  overflow: visible;
}

.block-diff__apparatus {
  display: block;
  flex: 0 1 auto;
  width: 100%;
  max-width: min(100%, 780px);
  height: auto;
  max-height: min(78vh, 800px);
  min-height: 0;
  object-fit: contain;
  object-position: 50% 100%;
}

.block-diff__patent {
  position: absolute;
  top: clamp(48px, 6vw, 58px);
  right: clamp(4px, 1vw, 12px);
  z-index: 2;
  margin: 0;
  width: min(28%, 148px);
  min-width: 100px;
  max-width: 148px;
  padding: clamp(6px, 1vw, 10px);
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 10px 32px rgba(0, 0, 0, 0.14);
  border: 1px solid rgba(0, 0, 0, 0.06);
  box-sizing: border-box;
}

.block-diff__patent img {
  display: block;
  width: 100%;
  height: auto;
}

.block-diff__patent-cap {
  margin: clamp(8px, 1vw, 10px) 0 0;
  font-family: "Roboto", var(--font), system-ui, sans-serif;
  font-size: clamp(0.7rem, 1vw, 0.8rem);
  font-weight: 600;
  text-align: center;
  color: #252529;
}

@media (min-width: 901px) {
  .block-diff__apparatus {
    max-width: min(100%, 820px);
    max-height: min(80vh, 820px);
  }
}

@media (max-width: 900px) {
  .block-diff__inner {
    display: flex;
    flex-direction: column;
    gap: clamp(24px, 4vw, 36px);
  }

  .block-diff__lead {
    order: 1;
  }

  .block-diff__features {
    order: 2;
  }

  .block-diff__figure {
    order: 3;
    align-self: stretch;
    min-height: clamp(240px, 62vw, 400px);
    padding-top: clamp(44px, 10vw, 52px);
  }

  .block-diff__apparatus {
    width: min(100%, 540px);
    max-width: 100%;
    max-height: min(56vh, 480px);
  }

  .block-diff__patent {
    top: clamp(44px, 10vw, 52px);
    right: clamp(8px, 2vw, 16px);
    width: min(34%, 140px);
    max-width: 140px;
    min-width: 96px;
  }
}

@media (max-width: 520px) {
  .block-diff__features {
    grid-template-columns: 1fr;
  }

  .block-diff__feature--empty {
    display: none;
  }
}