body:has(.pf-top-page) {
  margin: 0;
}

.pf-top-page {
  --pf-ink: #182426;
  --pf-muted: #5f696b;
  --pf-paper: #fbfbf9;
  --pf-mist: #eff5f4;
  --pf-line: #dfe8e6;
  --pf-teal: #0f6669;
  --pf-teal-dark: #004448;
  --pf-gold: #b9a56f;
  color: var(--pf-ink);
  background:
    radial-gradient(circle at 8% 26%, rgba(15, 102, 105, 0.05), transparent 24%),
    linear-gradient(180deg, #fff 0%, var(--pf-paper) 100%);
  font-family: "Hiragino Mincho ProN", "Yu Mincho", YuMincho, "Noto Serif JP", serif;
  line-height: 1.9;
  overflow-x: hidden;
}

.pf-top-page * {
  box-sizing: border-box;
}

.pf-top-page a {
  text-decoration: none;
}

.pf-top-page img {
  display: block;
  max-width: 100%;
}

.pf-top-hero {
  position: relative;
  width: 100vw;
  min-height: 570px;
  margin-right: calc(50% - 50vw);
  margin-left: calc(50% - 50vw);
  display: grid;
  align-items: center;
  overflow: hidden;
  background: #fff;
}

.pf-top-hero::before {
  position: absolute;
  inset: 0;
  content: "";
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.96) 0%, rgba(255, 255, 255, 0.78) 34%, rgba(255, 255, 255, 0.04) 64%),
    var(--pf-hero-image) center right / cover no-repeat;
  filter: saturate(0.82) contrast(1.03);
}

.pf-top-hero::after {
  position: absolute;
  right: -8%;
  bottom: -84px;
  left: -8%;
  height: 170px;
  content: "";
  border-top: 5px solid rgba(185, 165, 111, 0.7);
  border-radius: 50% 50% 0 0;
  background: #fff;
}

.pf-top-hero__copy {
  position: relative;
  z-index: 1;
  width: min(1120px, calc(100% - 48px));
  margin: 0 auto;
  padding-bottom: 74px;
}

.pf-top-hero h1 {
  margin: 0 0 22px;
  color: #111c1f;
  font-size: clamp(42px, 5.4vw, 72px);
  font-weight: 500;
  letter-spacing: 0;
  line-height: 1.38;
}

.pf-top-hero p {
  margin: 0 0 28px;
  color: #10191b;
  font-size: clamp(16px, 1.5vw, 20px);
  font-weight: 700;
  line-height: 2;
}

.pf-top-btn {
  display: inline-flex;
  min-width: 190px;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 12px 22px;
  border-radius: 1px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  transition: opacity 180ms ease, transform 180ms ease;
}

.pf-top-btn:hover {
  transform: translateY(-2px);
}

.pf-top-btn--dark {
  background: var(--pf-teal-dark);
  color: #fff !important;
}

.pf-top-btn--dark:visited,
.pf-top-btn--dark:hover,
.pf-top-btn--dark:focus {
  color: #fff !important;
}

.pf-top-btn--outline {
  border: 1px solid var(--pf-teal);
  background: #fff;
  color: var(--pf-teal-dark);
}

.pf-top-section,
.pf-top-before-after,
.pf-top-voice,
.pf-top-blog {
  width: 100vw;
  margin-right: calc(50% - 50vw);
  margin-left: calc(50% - 50vw);
  padding: 82px 20px;
}

.pf-top-heading {
  margin: 0 auto 30px;
  text-align: center;
}

.pf-top-heading p {
  margin: 0;
  color: var(--pf-teal);
  font-size: clamp(34px, 4vw, 46px);
  letter-spacing: 0;
  line-height: 1.1;
}

.pf-top-heading span {
  display: inline-grid;
  gap: 9px;
  color: var(--pf-ink);
  font-size: 11px;
  font-weight: 700;
}

.pf-top-heading span::after {
  width: 44px;
  height: 2px;
  margin: 8px auto 0;
  content: "";
  background: var(--pf-teal);
}

.pf-top-heading--left {
  margin: 0 0 28px;
  text-align: left;
}

.pf-top-heading--left span::after {
  margin-left: 0;
}

.pf-top-concept {
  position: relative;
  overflow: hidden;
  padding-top: 58px;
  text-align: center;
  background:
    linear-gradient(90deg, rgba(15, 102, 105, 0.05), transparent 26%, transparent 74%, rgba(15, 102, 105, 0.05)),
    #fff;
}

.pf-top-concept::before,
.pf-top-voice::after {
  position: absolute;
  content: "♬";
  color: rgba(15, 102, 105, 0.06);
  font-size: clamp(120px, 18vw, 260px);
  pointer-events: none;
}

.pf-top-concept::before {
  right: 8vw;
  top: 90px;
  transform: rotate(-10deg);
}

.pf-top-concept h2 {
  margin: 0 0 22px;
  color: #161f21;
  font-size: clamp(28px, 3.4vw, 43px);
  font-weight: 600;
  line-height: 1.65;
}

.pf-top-concept__text {
  max-width: 760px;
  margin: 0 auto;
  color: var(--pf-ink);
  font-size: 15px;
}

.pf-top-concept__text p {
  margin: 0 0 8px;
}

.pf-top-concept__closing {
  margin: 26px 0 54px;
  color: var(--pf-teal);
  font-size: 18px;
  font-weight: 700;
}

.pf-top-feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  width: min(980px, 100%);
  margin: 0 auto;
}

.pf-top-feature {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 18px;
  padding: 0 34px;
  border-right: 1px solid rgba(15, 102, 105, 0.18);
  text-align: left;
}

.pf-top-feature:last-child {
  border-right: 0;
}

.pf-top-feature__icon {
  display: grid;
  width: 56px;
  height: 56px;
  place-items: center;
  border-radius: 50%;
  background: var(--pf-mist);
  color: var(--pf-teal);
  font-size: 28px;
}

.pf-top-feature p:first-child {
  margin: 0;
  color: var(--pf-teal);
  font-size: 24px;
  font-weight: 700;
  line-height: 1;
}

.pf-top-feature h3 {
  margin: 2px 0 12px;
  color: var(--pf-teal);
  font-size: 20px;
  line-height: 1.45;
}

.pf-top-feature p:last-child {
  margin: 0;
  color: var(--pf-ink);
  font-size: 13px;
  line-height: 1.9;
}

.pf-top-before-after {
  position: relative;
  padding-top: 52px;
  background:
    linear-gradient(90deg, rgba(255,255,255,0.95), rgba(255,255,255,0.7)),
    var(--pf-lesson-image) right bottom / 48% auto no-repeat,
    #fbfbf9;
}

.pf-top-before-after h2 {
  margin: 0 0 30px;
  text-align: center;
  color: var(--pf-ink);
  font-size: 21px;
  line-height: 1.5;
}

.pf-top-ba-grid {
  display: grid;
  grid-template-columns: minmax(280px, 380px) 56px minmax(280px, 380px);
  gap: 36px;
  justify-content: center;
  align-items: center;
}

.pf-top-ba-card {
  min-height: 230px;
  padding: 34px 42px 30px;
  background: rgba(255,255,255,0.94);
  box-shadow: 0 16px 44px rgba(0,0,0,0.08);
}

.pf-top-ba-card span {
  display: inline-grid;
  min-width: 88px;
  min-height: 30px;
  place-items: center;
  margin: -46px 0 18px;
  background: #50585a;
  color: #fff;
  font-size: 15px;
}

.pf-top-ba-card--after span {
  background: var(--pf-teal);
}

.pf-top-ba-card ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.pf-top-ba-card li {
  color: var(--pf-ink);
  font-size: 15px;
}

.pf-top-ba-card li::before {
  margin-right: 12px;
  color: var(--pf-teal);
  content: "✓";
}

.pf-top-ba-card--after li::before {
  content: "♪";
}

.pf-top-ba-arrow {
  color: var(--pf-teal);
  font-size: 44px;
  text-align: center;
}

.pf-top-lesson {
  position: relative;
  width: 100vw;
  margin-right: calc(50% - 50vw);
  margin-left: calc(50% - 50vw);
  padding: 82px 20px;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(255,255,255,0.98) 0%, rgba(255,255,255,0.92) 50%, rgba(255,255,255,0.35) 100%),
    var(--pf-lesson-image) right center / 54% auto no-repeat,
    #fff;
}

.pf-top-lesson__inner {
  display: grid;
  grid-template-columns: minmax(290px, 0.82fr) minmax(320px, 1fr);
  gap: 68px;
  width: min(1080px, 100%);
  margin: 0 auto;
}

.pf-top-lesson__main p {
  max-width: 390px;
  margin: 16px 0 22px;
  color: var(--pf-ink);
  font-size: 14px;
}

.pf-top-lesson-time {
  display: flex;
  gap: 34px;
  align-items: baseline;
  color: var(--pf-teal);
  font-size: 22px;
}

.pf-top-lesson-time strong {
  color: var(--pf-ink);
  font-size: 32px;
  font-weight: 600;
}

.pf-top-lesson-time small {
  font-size: 17px;
}

.pf-top-lesson__notes {
  display: grid;
  gap: 28px;
  align-content: center;
}

.pf-top-lesson__notes article {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 18px;
  align-items: start;
}

.pf-top-lesson__notes span {
  display: grid;
  width: 54px;
  height: 54px;
  place-items: center;
  border-radius: 50%;
  background: var(--pf-mist);
  color: var(--pf-teal);
  font-size: 26px;
}

.pf-top-lesson__notes h3 {
  margin: 0 0 8px;
  color: var(--pf-teal);
  font-size: 17px;
}

.pf-top-lesson__notes p {
  max-width: 520px;
  margin: 0;
  color: var(--pf-ink);
  font-size: 13px;
}

.pf-top-about {
  width: min(1080px, calc(100% - 40px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  gap: 64px;
  align-items: center;
  padding: 70px 0;
}

.pf-top-about figure {
  margin: 0;
}

.pf-top-about img {
  width: 100%;
  height: 230px;
  object-fit: cover;
  box-shadow: 0 12px 36px rgba(0,0,0,0.08);
}

.pf-top-about__name {
  margin: 0 0 18px;
  color: var(--pf-teal);
  font-size: 17px;
  font-weight: 700;
}

.pf-top-about div > p:not(.pf-top-about__name) {
  margin: 0 0 12px;
  color: var(--pf-ink);
  font-size: 14px;
}

.pf-top-voice {
  position: relative;
  overflow: hidden;
  background: #fbfbf9;
}

.pf-top-voice::after {
  right: 5vw;
  bottom: 14%;
}

.pf-top-voice-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  width: min(1080px, 100%);
  margin: 0 auto;
}

.pf-top-voice-grid article {
  min-height: 280px;
  padding: 36px 34px;
  background: #fff;
  box-shadow: 0 14px 44px rgba(0,0,0,0.07);
}

.pf-top-avatar {
  width: 48px;
  height: 48px;
  margin-bottom: 12px;
  border-radius: 50%;
  background: #d9e4e2;
  color: transparent;
}

.pf-top-stars {
  margin-bottom: 18px;
  color: var(--pf-teal);
  letter-spacing: 0.08em;
}

.pf-top-voice-grid p {
  min-height: 96px;
  margin: 0 0 18px;
  color: var(--pf-ink);
  font-size: 14px;
}

.pf-top-voice-grid a {
  color: var(--pf-teal);
  font-size: 13px;
  font-weight: 700;
}

.pf-top-blog {
  text-align: center;
  background: #fff;
}

.pf-top-blog-list {
  display: grid;
  gap: 16px;
  width: min(860px, 100%);
  margin: 0 auto 30px;
  text-align: left;
}

.pf-top-blog-list article {
  display: grid;
  grid-template-columns: 190px 1fr 26px;
  gap: 24px;
  align-items: center;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--pf-line);
}

.pf-top-blog-list img {
  width: 190px;
  height: 92px;
  object-fit: cover;
}

.pf-top-blog-list h3 {
  margin: 0 0 8px;
  color: var(--pf-ink);
  font-size: 17px;
  line-height: 1.5;
}

.pf-top-blog-list p {
  margin: 0 0 4px;
  color: var(--pf-muted);
  font-size: 13px;
}

.pf-top-blog-list time {
  color: var(--pf-muted);
  font-size: 11px;
}

.pf-top-blog-list article > span {
  color: var(--pf-teal);
  font-size: 28px;
}

@media (max-width: 980px) {
  .pf-top-feature-grid,
  .pf-top-voice-grid {
    grid-template-columns: 1fr;
  }

  .pf-top-feature {
    border-right: 0;
    border-bottom: 1px solid rgba(15, 102, 105, 0.18);
    padding: 26px 0;
  }

  .pf-top-ba-grid,
  .pf-top-lesson__inner,
  .pf-top-about {
    grid-template-columns: 1fr;
  }

  .pf-top-ba-grid {
    gap: 20px;
  }

  .pf-top-ba-arrow {
    transform: rotate(90deg);
  }

  .pf-top-lesson {
    background:
      linear-gradient(180deg, rgba(255,255,255,0.98), rgba(255,255,255,0.82)),
      var(--pf-lesson-image) center bottom / cover no-repeat;
  }

  .pf-top-blog-list article {
    grid-template-columns: 128px 1fr 20px;
  }

  .pf-top-blog-list img {
    width: 128px;
    height: 82px;
  }
}

@media (max-width: 640px) {
  .pf-top-hero {
    min-height: 540px;
  }

  .pf-top-hero::before {
    background:
      linear-gradient(180deg, rgba(255,255,255,0.96), rgba(255,255,255,0.78) 52%, rgba(255,255,255,0.2)),
      var(--pf-hero-image) center right / cover no-repeat;
  }

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

  .pf-top-section,
  .pf-top-before-after,
  .pf-top-voice,
  .pf-top-blog {
    padding: 62px 18px;
  }

  .pf-top-heading p {
    font-size: 34px;
  }

  .pf-top-concept h2 {
    font-size: 25px;
  }

  .pf-top-ba-card {
    padding: 30px 24px 26px;
  }

  .pf-top-lesson {
    padding: 64px 18px;
  }

  .pf-top-lesson-time {
    display: grid;
    gap: 6px;
  }

  .pf-top-lesson__notes article {
    grid-template-columns: 48px 1fr;
  }

  .pf-top-about {
    width: calc(100% - 36px);
    padding: 58px 0;
    gap: 30px;
  }

  .pf-top-about img {
    height: 210px;
  }

  .pf-top-blog-list article {
    grid-template-columns: 1fr 20px;
    gap: 14px;
  }

  .pf-top-blog-list img {
    grid-column: 1 / -1;
    width: 100%;
    height: 150px;
  }
}