:root {
  --font-Montserrat: "Montserrat";
  font-family: var(--font-sans);
}
body {
  line-height: normal;
  font-weight: normal;
}

.fv {
  width: 100%;
}
.fv__bg {
  width: 100%;
}

/* ====== FEATURES section====== */
.features {
  padding: 60px 16px;
  background: #fff;
  color: #646567;
  font-family: var(--font-Montserrat);
}
.features__inner {
  max-width: 1000px;
  margin: 0 auto;
}
.features__title {
  text-align: center;
  letter-spacing: 0.15em;
  font-weight: 500;
  font-size: clamp(22px, 3.6vw, 40px);
  color: #646567;
  margin: 0 0 43px;
}
.features__title span {
  font-weight: 400;
  font-size: 0.6em;
  color: #646567;
}

.features__grid {
  display: flex;
  gap: 41px;
}
.feat-card {
  box-sizing: border-box;
}
.feat-card__top {
  display: flex;
  align-items: center;
  padding: 14px 16px 14px 0;
}
.feat-card__badge {
  flex: 0 0 auto;
  position: relative;
  width: 78px;
  height: 78px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.feat-card__head {
  margin: 0;
  font-size: 20px;
  line-height: 1.2;
  font-weight: 700;
  color: #00a8c0;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.feat-card__desc {
  margin: 0;
  font-size: 16px;
  line-height: 1.5;
  color: #646567;
}
/* ===== STORY セクション===== */
.story {
  padding: 64px 20px 72px;
  color: #646567;
  font-family: var(--font-Montserrat);
  background: url("./img/orabio_brush_bg1.png") center/cover no-repeat;
}
.story__inner {
  max-width: 920px;
  margin: 0 auto;
}

.story__title {
  margin: 0;
  font-weight: 700;
  font-family: serif;
  letter-spacing: 0.02em;
  line-height: 1.25;
  font-size: 36px;
  color: #00a8c0;
}
.story__subtitle {
  margin: 28px 0 !important;
  text-align: center;
  font-size: clamp(14px, 2.4vw, 18px);
}

.story__badge {
  float: right;
  shape-outside: circle(50%);
  shape-margin: 16px;
  width: 250px;
  height: 250px;
  margin: 0 0 12px 32px;
  text-align: center;
}
.story__badge > img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.story__note {
  font-size: 12px;
  line-height: 1.8;
  color: #8a8d90;
  margin-top: 8px;
}
.story__flow {
  font-size: clamp(14px, 2.1vw, 18px);
  line-height: 1.5;
}
.story__flow p {
  margin: 0 0 20px;
}
.story__accent {
  color: #00a8c0;
  font-weight: 600;
}
/* ===== Usage ===== */
.usage {
  padding: 56px 16px 40px;
  background: #fff;
  color: #646567;
  font-family: var(--font-Montserrat);
}
.usage__inner {
  max-width: 920px;
  margin: 0 auto;
}
.usage__title {
  text-align: center;
  letter-spacing: 0.15em;
  font-weight: 500;
  font-size: clamp(22px, 3.6vw, 40px);
  color: #646567;
  margin: 0 0 72px;
}
.usage__title span {
  font-size: 0.5em;
  color: #646567;
}
.usage__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 100px;
  row-gap: 40px;
}

.usage-card {
  width: 100%;
}
.usage-card__media {
  position: relative;
  margin: 0 0 10px;
  overflow: visible;
}
.usage-card__media img {
  display: block;
  width: 100%;
  height: auto;
}
.badge-num {
  --teal: #00a8c0;
  --shadow: rgba(0, 0, 0, 0.18);
  position: absolute;
  top: -10px;
  left: -5px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 35px;
  padding: 3px 20px 3px 15px;
  color: #fff;
  font-weight: 500;
  font-size: 36px;
  line-height: 1;
  background: var(--teal);
  clip-path: polygon(0 0, 100% 0, 86% 100%, 0 100%);
  box-shadow: 0 10px 18px rgba(0, 0, 0, 0.5);
  z-index: 5;
  font-family: serif;
}
.usage-card__caption {
  margin: 0;
  font-size: 16px;
  line-height: 1.5;
  color: #646567;
  font-weight: 600;
}
/* ===== Usecases Section ===== */
.usecases {
  padding: 56px 16px 32px;
  background: #fff;
  color: #646567;
  font-family: var(--font-Montserrat);
}
.usecases__inner {
  max-width: 920px;
  margin: 0 auto;
  border-bottom: 1px solid #a3a3a3;
  padding-bottom: 36px;
}
.usecases__title {
  position: relative;
  text-align: center;
  letter-spacing: 0.15em;
  font-weight: 500;
  font-size: clamp(22px, 3.6vw, 32px);
  color: #00a8c0;
  margin: 0 0 42px;
}
.usecases__title::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 1px;
  background: #a3a3a3;
  transform: translateY(-50%);
  z-index: 0;
}
.usecases__title::after {
  content: attr(data-title);
}
.usecases__title {
  padding: 0 18px;
  background: #fff;
}
.usecases__title span {
  position: relative;
  z-index: 1;
  display: inline-block;
  padding: 0 18px;
  background: #fff;
  letter-spacing: 0.15em;
  font-weight: 500;
  font-size: clamp(22px, 3.6vw, 40px);
  color: #00a8c0;
  font-family: var(--font-Montserrat);
}

.usecases__icons {
  list-style: none;
  padding: 0;
  margin: 0 0 36px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}
.usecases__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.usecases__icon img {
  display: block;
  max-width: 300px;
  height: auto;
  width: 300px;
}

.usecases__block {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  margin: 0 0 18px;
}
.usecases__texts {
  flex: 1 1 auto;
}
.usecases__head {
  margin: 0 0 10px;
  font-weight: 600;
  color: #00a8c0;
  font-size: clamp(18px, 2.6vw, 24px);
}
.usecases__desc {
  margin: 0;
  font-size: 20px;
  line-height: 1.5;
  color: #646567;
}
.usecases__photo {
  flex: 0 0 145px;
  margin: 0;
  overflow: hidden;
}
.usecases__photo img {
  display: block;
  width: 100%;
  height: auto;
}
/* ===== Paste セクション ===== */
.paste {
  padding: 0px 16px 40px;
  background: #fff;
  color: #646567;
  font-family: var(--font-Montserrat);
}
.paste__inner {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 28px;
}

.paste__text p {
  --lh: 2;
  --dot: #a3a3a3;
  --dot-size: 1.5px;
  --gap: 5px;
  --offset: 13px;
  margin: 0;
  font-size: 20px;
  line-height: var(--lh);
  letter-spacing: 0.02em;
  color: #646567;
  background-image: radial-gradient(
    circle at 0 0,
    var(--dot) var(--dot-size),
    transparent calc(var(--dot-size) + 0.1px)
  );
  background-size: var(--gap) calc(1em * var(--lh));
  background-repeat: repeat;
  background-position: 0 calc(1em + var(--offset));
  padding-bottom: 4px;
}

.paste__link {
  color: #00a8c0 !important;
  text-decoration: none !important;
  border-bottom: 2px solid #00a8c0;
  padding-bottom: 2px;
  font-weight: 700;
}

.paste__figure {
  flex: 0 0 200px;
  margin: 0;
  text-align: right;
}
.paste__figure img {
  display: block;
  width: 100%;
  height: auto;
  filter: drop-shadow(0 8px 18px rgba(0, 0, 0, 0.16));
}
/* ===== 製品情報セクション ===== */
.pinfo {
  position: relative;
  padding: 56px 16px 64px;
  isolation: isolate;
  font-family: var(--font-Montserrat);
}
.pinfo__bg {
  position: absolute;
  inset: 0;
  background: #f6f7f8 url("./img/cotton_pinfo.png") top center/cover no-repeat;
  z-index: -1;
  opacity: 0.9;
}

.pinfo__inner {
  max-width: 1000px;
  margin: 0 auto;
}
.pinfo__title {
  text-align: center;
  letter-spacing: 0.15em;
  font-weight: 500;
  font-size: clamp(22px, 3.6vw, 40px);
  color: #646567;
  margin: 0 0 43px;
}
.pinfo__title small {
  display: block;
  margin-top: 8px;
  font-size: 0.6em;
  font-weight: 400;
  color: #646567;
}

.pinfo__card {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.08);
  padding: 24px 28px 26px;
}

.pinfo__lead {
  text-align: center;
  margin: 0 0 16px;
  font-size: clamp(16px, 2.2vw, 24px);
  color: #646567;
  font-weight: 700;
  letter-spacing: 0.06em;
  border-bottom: 1px solid #a3a3a3;
  padding-bottom: 16px;
}

.u-emp {
  position: relative;
  font-weight: 700;
  font-size: clamp(18px, 3.2vw, 32px);
  letter-spacing: 0.06em;
  color: #646567;
  text-shadow: 2px 0 0 #fff, -2px 0 0 #fff, 0 2px 0 #fff, 0 -2px 0 #fff,
    1px 1px 0 #fff, -1px 1px 0 #fff, 1px -1px 0 #fff, -1px -1px 0 #fff,
    0 4px 6px rgba(0, 0, 0, 0.35), 0 10px 20px rgba(0, 0, 0, 0.12);
}

.pinfo__grid {
  display: grid;
  gap: 18px 36px;
  grid-template-columns: 1fr 1fr;
  margin: 6px 0 0;
  align-items: start;
}
.pinfo__col {
  display: grid;
  gap: 12px;
}

.pinfo__row {
  display: grid;
  grid-template-columns: 100px 1fr;
  align-items: baseline;
  gap: 16px;
  padding: 8px 0;
  border-bottom: 1px solid #a3a3a3;
  align-items: center;
}

.pinfo__dt {
  --accent: #00a8c0;
  margin: 0;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.03em;
  font-size: 22px;
}
.pinfo__dd {
  margin: 0;
  color: #646567;
  line-height: 1.5;
  font-size: 22px;
  white-space: nowrap;
}

/* ===== CTASection ===== */
.cta-purchase {
  background: #ecf6f6;
  color: #646567;
  font-family: var(--font-Montserrat);
}
.cta__inner {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  gap: 16px;
  justify-content: center;
  align-items: center;
}
.cta__text p {
  margin: 0 0 12px;
  line-height: 1.9;
  font-size: 18px;
}
.cta__illust img {
  display: block;
  height: auto;
}
.btn-grad {
  --c1: #00a5bf;
  --c2: #0e77ba;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-width: 260px;
  height: 52px;
  padding: 0 22px;
  color: #fff !important;
  text-decoration: none !important;
  background: linear-gradient(90deg, var(--c1), var(--c2));
  border-radius: 999px;
  box-shadow: 0 6px 16px rgba(14, 119, 186, 0.25);
  overflow: hidden;
  font-size: 18px;
}

/* ホバー演出*/
.btn-grad::after {
  content: "";
  position: absolute;
  inset: -40% -20%;
  background: linear-gradient(
    115deg,
    transparent 35%,
    rgba(255, 255, 255, 0.6) 50%,
    transparent 65%
  );
  transform: translateX(-120%);
  transition: transform 1.5s ease;
}
.btn-grad:hover::after {
  transform: translateX(120%);
}

.arr {
  font-size: 20px;
  line-height: 1;
}

/* アニメーション */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.2, 0.65, 0.2, 1);
  will-change: transform, opacity;
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}
.reveal[data-ani="up"] {
  transform: translateY(22px);
}
.reveal[data-ani="left"] {
  transform: translateX(-22px);
}
.reveal[data-ani="right"] {
  transform: translateX(22px);
}
.reveal[data-ani="scale"] {
  transform: scale(0.98);
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
}
.reveal[data-ani="left"] {
  transform: translateX(-22px);
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}
[data-stagger] > .reveal {
  transition-delay: calc(var(--i, 0) * 100ms);
}
.story__badge_sp {
  display: none;
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  .pc {
    display: none;
  }
  .features__grid {
    gap: 28px 20px;
    display: block;
  }
  .fv__bg {
    width: 100%;
  }
  .features__title {
    margin: 0 0 24px;
  }
  .feat-card {
    flex: 1 1 100%;
  }
  .feat-card__top {
    padding: 12px 14px;
    gap: 14px;
  }
  .feat-card__badge {
    width: 70px;
    height: 70px;
  }
  .feat-card__head {
    font-size: 18px;
  }
  .feat-card__bottom {
    padding: 14px 16px;
  }
  .features__grid {
    gap: 20px;
  }
  .feat-card__illust {
    width: 110px;
  }
  /* ストーリーセクション */
  .story__badge {
    display: none;
  }
  .story__badge_sp {
    display: block;
    margin: 0 auto;
    align-items: center;
    text-align: center;
  }
  .story__badge_sp img {
    margin: 0 auto;
  }
  .story__title {
    font-size: 22px;
    white-space: nowrap;
    text-align: center;
  }
  .story__subtitle {
    margin: 12px !important;
  }
  .story {
    padding: 48px 16px 56px;
  }
  .story__note {
    font-size: 11px;
    margin-top: -24px;
    margin-bottom: 16px;
  }
  /* Usageセクション */
  .usage__grid {
    gap: 28px 20px;
    grid-template-columns: repeat(1, minmax(0, 1fr));
  }
  .usage__title {
    margin: 0 0 48px;
  }
  .usage-card {
    flex: 1 1 100%;
  }
  .usage-card__caption {
    font-size: 14px;
  }
  /* usecasesセクション */
  .usecases {
    padding: 32px 16px;
  }
  .usecases__icon img {
    display: block;
    max-width: 500px;
    height: auto;
    width: 100%;
  }
  .usecases__block {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 20px;
    margin: 0 0 18px;
  }
  .usecases__icons {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .usecases__photo {
    width: 70%;
    max-width: 300px;
  }
  .usecases__desc {
    font-size: 12px;
  }
  .paste__inner {
    flex-direction: column-reverse;
    align-items: center;
    gap: 16px;
    justify-content: center;
  }
  .paste__figure img {
    width: 100%;
  }
  .paste__text p {
    font-size: 14px;
    line-height: 1.5;
    background-image: none;
  }
  .paste__text {
    width: 100%;
  }
  .cta__inner {
    display: flex;
    flex-direction: column-reverse;
    text-align: center;
    padding-bottom: 24px;
  }
  .cta__illust img {
    width: 200px;
    margin-left: auto;
  }
  .name {
    font-size: 22px;
  }
  .pinfo__grid {
    grid-template-columns: 1fr;
  }
  .pinfo__dt {
    font-size: 14px;
  }
  .pinfo__dd {
    font-size: 14px;
  }
  .pinfo__row {
    grid-template-columns: 50px 1fr;
  }
}
@media print {
  .only-screen {
    display: none;
  }
}