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

.main_fv{
  text-align: center;
  background: url("../orabio_brush/img/Orabio_bg.png") center/cover no-repeat;
  padding: 32px 0 ;
}
.fv {
  width: 100%;
  max-width: 1000px;
  margin: 0 auto;
}

/* ====== FEATURES section====== */
.features {
  padding: 56px 16px 40px;
  background: url("./img/orabio_brush_bg1.png") center/cover no-repeat;
}
.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__content {
  display: flex;
  gap: 30px;
  flex-direction: row;
}
.features_img {
  max-width: 500px;
}
.features__text {
  padding: 20px 0;
}
.features__head {
  font-size: 20px;
  color: #00a8c0;
  margin-bottom: 24px;
}
.features__sub {
  color: #646567;
  line-height: 1.5;
  font-size: 18px !important;
}
/* ゼオライトセクション */
.zeo {
  padding: 30px 16px;
}
.zeo__inner {
  max-width: 1000px;
  margin: 0 auto;
}
.zeo__title {
  text-align: center;
  font-size: 24px;
  font-weight: 600;
  color: #646567;
  margin-bottom: 24px;
}

.zeo__body {
  display: flex;
  gap: 32px;
  align-items: flex-start;
}

.zeo__col {
  flex: 1;
}

.zeo__sub {
  font-size: 18px;
  font-weight: 700;
  color: #00a8c0;
  margin-bottom: 8px;
}

.zeo__text {
  font-size: 16px;
  line-height: 1.5;
  color: #646567;
}

.zeo__image {
  margin-top: 16px;
}

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

.zeo__caption {
  margin-top: 8px;
  font-size: 16px;
  color: #646567;
}
/* USAGEセクション */
.usage {
  padding: 56px 16px;
}

.usage__inner {
  max-width: 800px;
  margin: 0 auto;
  border: 1px solid #a3a3a3;
  border-radius: 8px;
  padding: 40px 40px 48px;
}

.usage__title {
  text-align: center;
  display: flex;
  flex-direction: column;
  margin: -10% auto 43px;
  background: #fff;
  width: 300px;
}

.usage__title-en {
  text-align: center;
  letter-spacing: 0.15em;
  font-weight: 500;
  font-size: 40px;
  color: #646567;
}

.usage__title-ja {
  font-weight: 400;
  font-size: 24px;
  color: #646567;
}

.usage__lead {
  text-align: center;
  font-size: 18px;
  color: #646567;
  line-height: 2;
  margin-bottom: 32px;
  letter-spacing: 0.1em;
}

/* STEP 1 / 2 */
.usage__steps {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-bottom: 40px;
}

.usage-step {
  text-align: center;
}

.usage-step__num {
  display: inline-block;
  margin-bottom: 12px;
  padding: 4px 24px;
  background: #00a8c0;
  color: #fff;
  font-weight: 700;
  font-size: 18px;
}

.usage-step__image img {
  display: block;
  max-width: 250px;
  height: auto;
  margin: 0 auto;
}
.usage-step__image2 img {
  max-width: 300px;
  width: 300px;
}

/* 下の水色ボックス */
.usage__example {
  background: #f4fbfb;
  border-radius: 8px;
  padding: 28px 24px 24px;
  text-align: center;
}

.usage__example-title {
  color: #00a8c0;
  font-weight: 700;
  margin-bottom: 24px;
  font-size: 24px;
}

.usage__example-photos {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 16px;
}

.usage__example-photos img {
  display: block;
  max-width: 100%;
  height: auto;
  max-width: 350px;
}

.usage__example-text {
  font-size: 16px;
  line-height: 1.7;
  color: #646567;
}

/* ===== 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: url("./img/orabio_brush_bg2.png") center/cover no-repeat;
  z-index: -1;
  opacity: 0.9;
}

.pinfo__inner {
  max-width: 800px;
  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: 400px 1fr;
  margin: 6px 0 0;
  align-items: start;
}
.pinfo__col {
  display: grid;
  gap: 12px;
}

.pinfo__row {
  display: grid;
  grid-template-columns: 150px 1fr;
  align-items: baseline;
  padding: 8px 0;
  border-bottom: 1px solid #a3a3a3;
}

.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: 20px;
}
.pinfo__dd {
  display: flex;
  justify-content: space-between;
}
.pinfo__row_none {
  border: none;
  padding: 16px 0 0;
}
.pinfo__col_none {
  gap: 0;
}
.pinfo_note {
  font-size: 12px;
  color: #646567;
  text-align: right;
}
/* ===== 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;
  padding: 32px 0;
}
.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;
}
.cta__illust img {
  max-width: 200px;
}

/* 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) * 110ms);
}
/* SP */
@media (max-width: 768px) {
  .pc {
    display: none;
  }
  .fv {
    margin-bottom: -10px;
  }
  .main_fv{
    margin-bottom: -32px;
  }
  /* featuresセクション */
  .features {
    padding: 32px 16px 24px;
  }
  .features__title {
    margin: 0 0 24px;
  }
  .features__content {
    flex-direction: column;
    gap: 0;
  }
  /* ゼオライトセクション */
  .zeo__title {
    font-size: 18px;
  }
  .zeo__sub {
    font-size: 16px;
  }
  .zeo__text {
    font-size: 14px;
  }
  .zeo__caption {
    font-size: 14px;
  }
  .zeo__body {
    flex-direction: column;
    gap: 10px;
  }
  /* usageセクション */
  .usage{
    padding: 32px 14px;
  }
  .usage__inner{
    padding: 20px 16px ;
  }
  .usage__title-en {
    font-size: 20px;
  }
  .usage__title {
    margin: -17% auto 43px;
    background: #fff;
    width: 200px;
  }
  .usage__lead{
    font-size: 16px;
    letter-spacing: 0;
    line-height: 1.5;
    margin-bottom: 16px;
  }
  .usage__steps{
    gap: 0;
  }
  .usage-step__image img{
    max-width: 140px;
  }
  .usage-step__image2 img{
    max-width: 170px;
  }
  .usage__example-photos img{
    max-width: 135px;
  }
  .usage__example-title{
    font-size: 20px;
  }
  .usage__example{
    padding: 20px 10px ;
  }
  .usage__example-text{
    font-size: 14px;
  }
  /* 製品情報セクション */
  .pinfo__title {
    margin: 0 0 24px;
  }
  .pinfo__grid {
    grid-template-columns: 1fr;
    gap: 5px;
  }
  .pinfo__row {
    grid-template-columns: 90px 1fr;
  }
  .pinfo__dt {
    font-size: 12px;
  }
  .pinfo__dd {
    font-size: 12px;
  }
  .pinfo__card {
    padding: 24px 12px;
  }
  .cert__badge {
    margin-top: 10px;
    max-width: 500px;
    width: 100%;
  }
  .pinfo_note {
    font-size: 10px;
    text-align-last: left;
  }
  .pinfo__bg {
  background: url("./img/orabio_brush_bg1.png") center/cover no-repeat;
}
  .cta__inner {
    display: flex;
    flex-direction: column-reverse;
    justify-content: center;
    text-align: center;
    gap: 0;
    padding-bottom: 24px;
  }
  .cta__illust img {
    width: 200px;
    margin-left: auto;
  }
  .cta__text p {
    font-size: 16px;
  }
}