.howto-hero {
  display: grid;
  height: 500px;
  grid-template-columns: 43% 57%;
  border-top: 1px solid var(--color-line);
  border-bottom: 0;
  background: #ffffff;
}

.howto-hero__copy {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  padding: 56px 64px 40px max(var(--page-gutter), calc((100vw - 1248px) / 2));
}

.howto-hero h1 {
  margin: 18px 0 0;
  font-size: 52px;
  font-weight: 700;
  line-height: 1.35;
}

.howto-hero__intro {
  margin-top: 54px;
}

.howto-hero__intro p {
  margin: 0;
  color: var(--color-muted);
  font-size: var(--font-body);
  font-weight: 500;
  line-height: 2;
}

.howto-hero__intro .text-link {
  margin-top: 20px;
}

.howto-hero__visual {
  min-width: 0;
  margin: 0;
  overflow: hidden;
}

.howto-hero__visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.flow-intro {
  padding: 72px 0 76px;
}

.flow-intro__inner {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  align-items: end;
  gap: 60px;
}

.flow-intro h2,
.usage-steps h2,
.care-guide h2,
.howto-faq h2 {
  margin: 24px 0 0;
  font-size: 37px;
  font-weight: 700;
  line-height: 1.48;
}

.usage-steps h2 {
  font-size: 34px;
}

.flow-intro__inner > p,
.usage-steps__lead > p:not(.eyebrow) {
  margin: 0 0 6px;
  color: var(--color-muted);
  font-size: var(--font-body);
  font-weight: 400;
  line-height: 2;
}

.flow-intro__inner > p {
  max-width: 410px;
}

.usage-steps {
  padding: 56px 0 74px;
  border-top: 0;
  border-bottom: 1px solid var(--color-line);
  background: #f7f6f2;
}

.usage-steps__inner {
  display: grid;
  grid-template-columns: 310px minmax(0, 1fr);
  gap: 90px;
}

.usage-steps__lead {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding-top: 28px;
}

.usage-steps__lead > p:not(.eyebrow) {
  margin-top: 24px;
}

.usage-steps__lead > img {
  display: block;
  width: 220px;
  height: 202px;
  margin-top: auto;
  object-fit: cover;
  object-position: center 43%;
}

.usage-steps__cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border: 1px solid #d2d0cc;
  box-shadow: 0 18px 38px rgba(17, 17, 17, 0.12);
}

.usage-step {
  min-width: 0;
  padding: 28px 26px 32px;
  border-left: 1px solid #d2d0cc;
  background: #f7f6f5;
  text-align: center;
}

.usage-step:first-child {
  border-left: 0;
}

.usage-step--02 {
  background: #d8d4d0;
}

.usage-step--03 {
  color: #ffffff;
  background: #2f2f2d;
}

.usage-step__number {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 8px;
  margin: 0;
  font-weight: 700;
  line-height: 1;
}

.usage-step__number span {
  font-size: 29px;
}

.usage-step__number small {
  font-size: var(--font-note);
  font-weight: 700;
  letter-spacing: 0.05em;
}

.usage-step img {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  height: auto;
  margin-top: 20px;
  object-fit: cover;
}

.usage-step h3 {
  margin: 20px 0 0;
  font-size: 20px;
  line-height: 1.5;
}

.usage-step > p:last-child {
  margin: 10px 0 0;
  color: var(--color-muted);
  font-size: var(--font-body);
  font-weight: 500;
  line-height: 1.75;
}

.usage-step--03 > p:last-child {
  color: #d2d2d2;
}

.care-guide {
  padding: 74px 0 84px;
}

.care-guide__inner {
  display: grid;
  grid-template-columns: 310px minmax(0, 1fr);
  gap: 90px;
}

.care-list {
  border-top: 4px solid var(--color-text);
}

.care-list__item {
  display: grid;
  min-height: 82px;
  grid-template-columns: 110px minmax(150px, 1fr);
  align-items: center;
  gap: 18px;
  border-bottom: 1px solid var(--color-line);
}

.care-list span,
.care-list small {
  color: var(--color-muted);
  font-size: var(--font-note);
  font-weight: 600;
}

.care-list strong {
  font-size: 17px;
}

.care-list b {
  font-size: 18px;
  font-weight: 400;
}

.howto-faq {
  padding: 64px 0 70px;
  color: #ffffff;
  background: #111111;
}

.howto-faq__inner {
  display: grid;
  grid-template-columns: 310px minmax(0, 1fr);
  gap: 90px;
}

.faq-list {
  border-top: 1px solid #666666;
}

.faq-list details {
  border-bottom: 1px solid #666666;
}

.faq-list summary {
  position: relative;
  padding: 21px 46px 21px 0;
  font-size: 15px;
  font-weight: 500;
  list-style: none;
  cursor: pointer;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::before,
.faq-list summary::after {
  position: absolute;
  top: 50%;
  right: 8px;
  width: 14px;
  height: 1px;
  background: #ffffff;
  content: "";
}

.faq-list summary::after {
  transform: rotate(90deg);
  transition: transform 180ms ease;
}

.faq-list details[open] summary::after {
  transform: rotate(0);
}

.faq-list details p {
  margin: 0;
  padding: 0 46px 22px 0;
  color: #c8c8c8;
  font-size: var(--font-body);
  line-height: 1.9;
}

@media (min-width: 1024px) and (max-width: 1199px) {
  .howto-hero {
    height: 480px;
  }

  .howto-hero__copy {
    padding-right: 40px;
  }

  .howto-hero h1 {
    font-size: 44px;
  }

  .usage-steps__inner {
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 16px;
  }

  .usage-step {
    padding-right: 18px;
    padding-left: 18px;
  }
}

@media (max-width: 1023px) {
  .howto-hero {
    height: auto;
    grid-template-columns: 1fr;
  }

  .howto-hero__copy {
    min-height: 420px;
    padding: 60px var(--page-gutter);
  }

  .howto-hero__visual {
    height: 460px;
  }

  .flow-intro__inner,
  .usage-steps__inner,
  .care-guide__inner,
  .howto-faq__inner {
    grid-template-columns: 1fr;
  }

  .usage-steps__lead > img {
    display: none;
  }

  .care-guide__inner,
  .howto-faq__inner {
    gap: 46px;
  }
}

@media (max-width: 767px) {
  .howto-hero__copy {
    min-height: 390px;
    padding: 48px var(--page-gutter);
  }

  .howto-hero h1 {
    font-size: 38px;
  }

  .howto-hero__intro p {
    font-size: var(--font-body-mobile);
  }

  .howto-hero__intro p br {
    display: none;
  }

  .howto-hero__visual {
    height: 310px;
  }

  .flow-intro,
  .usage-steps,
  .care-guide,
  .howto-faq {
    padding-top: 54px;
    padding-bottom: 58px;
  }

  .flow-intro__inner {
    gap: 30px;
  }

  .flow-intro h2,
  .usage-steps h2,
  .care-guide h2,
  .howto-faq h2 {
    font-size: 29px;
  }

  .usage-steps__cards {
    grid-template-columns: 1fr;
  }

  .usage-step {
    border-top: 1px solid #d2d0cc;
    border-left: 0;
  }

  .usage-step:first-child {
    border-top: 0;
  }

  .usage-step img {
    height: auto;
  }

  .flow-intro__inner > p,
  .usage-steps__lead > p:not(.eyebrow),
  .usage-step > p:last-child,
  .faq-list details p {
    font-size: var(--font-body-mobile);
  }

  .care-list__item {
    min-height: 96px;
    grid-template-columns: 78px minmax(0, 1fr);
    gap: 12px;
  }

  .care-list small {
    display: none;
  }
}