@charset "UTF-8";
/* ============================================
   ペトログメイト LP ／ style.css
   ============================================ */
/* --- 1. CSS Variables --- */ :root {
  --red: #E60012;
  --red-dk: #B8000E;
  --red-wk: #FCE8EA;
  --ink: #1A1A1A;
  --ink-soft: #4A4A4A;
  --sub: #8B8B8B;
  --line: #E8E4DA;
  --bg-warm: #FAF7F0;
  --bg-soft: #F8F8F8;
  --white: #FFFFFF;
  --container: 1100px;
  --container-narrow: 800px;
  --header-h: 64px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(230, 0, 18, 0.25);
  --shadow-lg: 0 6px 20px rgba(0, 0, 0, 0.2);
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --ease: cubic-bezier(.2, .8, .2, 1);
}
/* --- 2. Reset / Base --- */
*, *::before, *::after {
  box-sizing: border-box;
}
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 8px);
}
body {
  margin: 0;
  font-family: "Hiragino Sans", "Meiryo", "Yu Gothic", "Hiragino Kaku Gothic ProN", sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, svg {
  max-width: 100%;
  height: auto;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
}
button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}
h1, h2, h3, h4, h5, h6, p, ul, ol, figure {
  margin: 0;
  padding: 0;
}
ul, ol {
  list-style: none;
}
/* --- 3. Accessibility --- */ :focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 3px;
  border-radius: 2px;
}
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}
.skip-link {
  position: absolute;
  top: 8px;
  left: 8px;
  z-index: 1000;
  background: var(--ink);
  color: var(--white);
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: bold;
  transform: translateY(-200%);
  transition: transform .2s var(--ease);
}
.skip-link:focus {
  transform: translateY(0);
}
/* --- 4. Layout Utility --- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 24px;
}
.container--narrow {
  max-width: var(--container-narrow);
}
.section {
  padding-block: 72px;
}
.section--lg {
  padding-block: 88px;
}
/* --- 5. Typography --- */
.section-label {
  display: inline-block;
  background: var(--red);
  color: var(--white);
  font-size: 11px;
  font-weight: bold;
  letter-spacing: 2px;
  padding: 5px 12px;
  border-radius: 2px;
  margin-bottom: 16px;
  line-height: 1.4;
}
.section-label--on-red {
  background: rgba(255, 255, 255, 0.22);
  color: var(--white);
}
.section-title {
  font-size: 26px;
  font-weight: 700;
  line-height: 1.45;
  margin: 0 0 20px;
  color: var(--ink);
  letter-spacing: 0.02em;
}
.section-heading {
  text-align: center;
  margin-bottom: 16px;
}
.section-body {
  font-size: 15px;
  line-height: 2;
  color: var(--ink-soft);
}
.section-body p + p {
  margin-top: 16px;
}
/* --- 6. Button --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 700;
  text-align: center;
  border-radius: var(--radius-sm);
  transition: background-color .2s var(--ease), transform .15s var(--ease), box-shadow .2s var(--ease);
  -webkit-tap-highlight-color: transparent;
}
.btn--cta {
  background: var(--red);
  color: var(--white);
  padding: 18px 40px;
  font-size: 18px;
  box-shadow: var(--shadow-md);
  min-height: 56px;
  min-width: 240px;
}
.btn--cta:hover {
  background: var(--red-dk);
  transform: translateY(-1px);
}
.btn--cta:active {
  transform: translateY(0);
}
.btn--cta-lg {
  padding: 20px 52px;
  font-size: 18px;
  min-height: 64px;
}
.btn--cta-inverse {
  background: var(--white);
  color: var(--red);
  box-shadow: var(--shadow-lg);
}
.btn--cta-inverse:hover {
  background: var(--red-wk);
  color: var(--red-dk);
}
.btn--header {
  background: var(--red);
  color: var(--white);
  padding: 9px 18px;
  font-size: 13px;
  border-radius: var(--radius-sm);
  min-height: 40px;
}
.btn--header:hover {
  background: var(--red-dk);
}
.cta-note {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: var(--ink-soft);
  margin-top: 12px;
  line-height: 1.7;
}
.btn--cta-inverse + .cta-note {
  color: rgba(255, 255, 255, 0.88);
}
/* --- 7. Header --- */
.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 100;
}
.site-header__inner {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: var(--header-h);
}
.site-header__logo {
  display: inline-flex;
  align-items: center;
  line-height: 0;
}
.site-header__logo svg {
  height: 30px;
  width: auto;
}
/* --- 8. Hero --- */
.hero {
  position: relative;
  /* 背景: オリジナル画像差し替え予定。images/hero-bg.jpg を配置すると自動反映。
     radial overlay で中央を明るくして文言の可読性を確保（画像はエッジに向かって見える）。
     overlay の不透明度は実画像が来てから調整してください。 */
  background-color: var(--red-wk);
  background-image:
    radial-gradient(ellipse 80% 70% at center, rgba(255, 255, 255, 0.88) 0%, rgba(255, 255, 255, 0.55) 45%, rgba(255, 255, 255, 0.1) 90%, rgba(255, 255, 255, 0) 100%), url('../images/hero-bg.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  padding: 96px 24px 104px;
  min-height: 520px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero__inner {
  width: 100%;
  max-width: 720px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.hero__eyebrow {
  color: var(--red);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 3px;
  margin: 0 0 18px;
}
.hero__title {
  font-size: 44px;
  font-weight: 900;
  line-height: 1.3;
  margin: 0 0 28px;
  color: var(--ink);
  letter-spacing: 0.01em;
}
.hero__title-emoji {
  color: var(--red);
  display: inline-block;
}
.hero__copy {
  font-size: 16px;
  font-weight: 600;
  line-height: 2;
  color: var(--ink-soft);
  margin: 0 auto 32px;
  max-width: 640px;
}
/* --- 9. Image Placeholder --- */
/* 実画像差し替えまでの暫定プレースホルダー。
   <img> に置き換える際は data-image-placeholder と role/aria-label を削除し alt 属性を指定すること。 */
.image-placeholder {
  background: repeating-linear-gradient(45deg, #f1efe9, #f1efe9 10px, #e8e4da 10px, #e8e4da 20px);
  border: 1px dashed #c7c0ad;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #807866;
  font-size: 13px;
  padding: 24px;
  border-radius: var(--radius-md);
  min-height: 160px;
}
.image-placeholder__label {
  display: block;
}
.image-placeholder__hint {
  display: block;
  font-size: 11px;
  margin-top: 6px;
  color: #968d75;
  line-height: 1.6;
}
/* --- 10. About --- */
.about {
  background: var(--white);
}
.about__body {
  max-width: var(--container-narrow);
  margin: 24px auto 0;
}
.about__images {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 40px;
}
.about__images {
  display: none
}
.about__image {
  aspect-ratio: 4 / 3;
}
/* --- 11. Benefits --- */
.benefits {
  background: var(--bg-soft);
}
.benefits__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}
.benefit-card {
  background: var(--white);
  padding: 28px 24px;
  border-top: 4px solid var(--red);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}
.benefit-card__icon {
  height: 48px;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  font-size: 32px;
  line-height: 1;
}
.benefit-card__icon img {
  height: 48px;
  width: auto;
}
.benefit-card__title {
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 10px;
  color: var(--ink);
  line-height: 1.5;
}
.benefit-card__desc {
  font-size: 14px;
  line-height: 1.85;
}
/* --- 12. Benefits closing message — 上吹き出し風 --- */
.benefits .section-body {
  position: relative;
  max-width: 850px;
  margin: 72px auto 0;
  padding: 36px 40px 32px;
  background:var(--bg-warm);
  border-radius: 24px;
  text-align: center;
  color: var(--ink);
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.08);
}
/* 吹き出しの上向きしっぽ (border-triangle テクニック) */
.benefits .section-body::before {
  content: "";
  position: absolute;
  top: -22px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 22px 23px 22px;
  border-color: transparent transparent var(--bg-warm) transparent;
  /* 影が吹き出し本体と一体になるよう、しっぽ側にもごく薄い drop-shadow */
  filter: drop-shadow(0 -2px 2px rgba(0, 0, 0, 0.05));
}
.benefits .section-body p {
  margin: 0;
  font-size: 16px;
    font-weight: 700;
  line-height: 2;
  color: var(--ink);
}
.benefits .section-body p + p {
  margin-top: 16px;
}
/* --- 13. Experts --- */
.experts {
  background: var(--bg-warm);
}
.experts__intro {
  max-width: 700px;
  margin: 0 auto 40px;
  text-align: center;
  font-size: 15px;
  line-height: 2;
  color: var(--ink-soft);
}
.experts__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.expert-card {
  background: var(--white);
  padding: 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 24px;
  align-items: start;
}
.expert-card__photo {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  padding: 0;
  min-height: 0;
}
.expert-card__photo .image-placeholder__label {
  font-size: 11px;
}
.expert-card__name {
  font-size: 16px;
  font-weight: 700;
  margin: 0 0 4px;
  line-height: 1.5;
}
.expert-card__title {
  font-size: 12px;
  color: var(--red);
  margin-bottom: 10px;
  font-weight: 700;
}
.expert-card__bio {
  font-size: 12.5px;
  line-height: 1.85;
  color: var(--ink-soft);
  margin-bottom: 12px;
}
.expert-card__message {
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--ink);
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-style: italic;
}
/* --- 14. How to Join --- */
.flow {
  background: var(--red-wk);
}
.flow__steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
  margin-top: 40px;
}
.flow-step {
  background: var(--white);
  padding: 24px 14px 22px;
  border-radius: var(--radius-lg);
  text-align: center;
  position: relative;
}
.flow-step__num {
  width: 36px;
  height: 36px;
  background: var(--red);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 15px;
  margin: 0 auto 14px;
  line-height: 1;
}
.flow-step__title {
  font-size: 15px;
  font-weight: 700;
  margin: 0 0 8px;
  line-height: 1.45;
}
.flow-step__desc {
  font-size: 11.5px;
  color: var(--ink-soft);
  line-height: 1.65;
}
.flow__note {
  text-align: center;
  margin-top: 28px;
  font-size: 12px;
  color: var(--ink-soft);
}
.flow__notice {
  max-width: 700px;
  margin: 20px auto 0;
  padding: 20px 22px;
  background: var(--white);
  border-left: 4px solid var(--red);
  border-radius: var(--radius-sm);
}
.flow__notice-title {
  font-size: 16px;
  color: var(--ink);
  font-weight: 700;
  margin: 0 0 6px;
  line-height: 1.6;
}
.flow__notice-text {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.75;
  margin: 0;
}
/* --- 15. Requirements --- */
.requirements {
  background: var(--white);
  padding-block: 60px;
}
.requirements__box {
  max-width: var(--container-narrow);
  margin: 32px auto 0;
  background: var(--bg-warm);
  padding: 28px 32px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--red);
}
.requirements__title {
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 14px;
  line-height: 1.55;
}
.requirements__list {
  margin: 0;
  padding: 0;
}
.requirements__list li {
  padding: 6px 0 6px 28px;
  position: relative;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.75;
}
.requirements__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 14px;
  height: 14px;
  background: var(--red);
  -webkit-mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'><path fill='black' d='M6.173 12.414 2 8.241l1.414-1.414L6.173 9.586 12.586 3.172 14 4.586z'/></svg>") no-repeat center / contain;
  mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'><path fill='black' d='M6.173 12.414 2 8.241l1.414-1.414L6.173 9.586 12.586 3.172 14 4.586z'/></svg>") no-repeat center / contain;
}
.requirements__note {
  margin-top: 14px;
  font-size: 13px;
  line-height: 1.75;
}
/* --- 16. Message --- */
.message {
  background: var(--bg-warm);
}
.message__inner {
  max-width: 1000px;
  margin-inline: auto;
  padding-inline: 24px;
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 48px;
  align-items: center;
}
.message__photo {
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-lg);
}
.message__body p {
  font-size: 15px;
  line-height: 2;
  color: var(--ink-soft);
  margin: 0 0 18px;
}
.message__signature {
  margin-top: 22px;
  font-weight: 700;
  color: var(--ink);
}
/* --- 17. FAQ --- */
.faq {
  background: var(--bg-soft);
}
.faq__list {
  max-width: var(--container-narrow);
  margin: 40px auto 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.faq-question {
  width: 100%;
  text-align: left;
  padding: 18px 22px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.6;
  cursor: pointer;
}
.faq-question:hover {
  background: rgba(230, 0, 18, 0.025);
}
.faq-question__mark {
  color: var(--red);
  font-weight: 700;
  flex-shrink: 0;
}
.faq-question__text {
  flex: 1;
}
.faq-question__icon {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  position: relative;
  transition: transform .25s var(--ease);
  margin-top: 4px;
}
.faq-question__icon::before, .faq-question__icon::after {
  content: "";
  position: absolute;
  background: var(--red);
  border-radius: 1px;
}
.faq-question__icon::before {
  top: 50%;
  left: 0;
  width: 100%;
  height: 2px;
  transform: translateY(-50%);
}
.faq-question__icon::after {
  left: 50%;
  top: 0;
  width: 2px;
  height: 100%;
  transform: translateX(-50%);
  transition: opacity .2s var(--ease);
}
.faq-question[aria-expanded="true"] .faq-question__icon::after {
  opacity: 0;
}
.faq-answer {
  padding: 0 22px 18px 44px;
  font-size: 16px;
  line-height: 1.85;
}
.faq-answer p {
  margin: 0;
}
/* --- 18. Closing --- */
.closing {
  background: var(--red);
  color: var(--white);
  padding-block: 88px;
  text-align: center;
}
.closing__title {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.55;
  margin: 0 0 22px;
}
.closing__text {
  font-size: 18px;
  line-height: 2;
  max-width: 700px;
  margin: 0 auto 36px;
  padding-inline: 16px;
  opacity: 0.95;
}
/* --- 19. Footer --- */
.site-footer {
  background: var(--ink);
  color: var(--white);
  padding: 28px 24px;
  text-align: center;
  font-size: 12px;
  line-height: 1.75;
}
/* --- 20. Responsive --- */
@media (min-width: 480px) {
  .section-title {
    font-size: 28px;
  }
  .closing__title {
    font-size: 30px;
  }
}
@media (min-width: 768px) {
  .section-title {
    font-size: 30px;
  }
  .hero__title {
    font-size: 44px;
  }
  .closing__title {
    font-size: 32px;
  }
  .container {
    padding-inline: 32px;
  }
}
@media (max-width: 767px) {
  .section {
    padding-block: 56px;
  }
  .section--lg {
    padding-block: 64px;
  }
  .closing {
    padding-block: 64px;
  }
  .hero {
    padding: 64px 24px 72px;
    min-height: 420px;
  }
  .message__inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .hero__title {
    font-size: 30px;
    margin-bottom: 22px;
  }
  .hero__copy {
    font-size: 15px;
    line-height: 1.95;
  }
  .benefits__grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .benefits .section-body {
    margin-top: 56px;
    padding: 26px 22px 24px;
    border-radius: 20px;
  }
  .benefits .section-body::before {
    top: -11px;
    border-width: 0 12px 13px 12px;
  }
  .benefits .section-body p {
    font-size: 14px;
    line-height: 1.95;
  }
  .experts__grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .expert-card {
    grid-template-columns: 88px 1fr;
    gap: 18px;
    padding: 22px;
  }
  .expert-card__photo {
    width: 88px;
    height: 88px;
  }
  .flow__steps {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .flow-step {
    display: grid;
    grid-template-columns: 36px 1fr;
    gap: 14px;
    align-items: center;
    text-align: left;
    padding: 16px 18px;
  }
  .flow-step__num {
    margin: 0;
  }
  .flow-step__title {
    margin-bottom: 4px;
  }
  .flow-step__desc {
    line-height: 1.7;
  }
  .about__images {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .message__photo {
    max-width: 280px;
    margin-inline: auto;
  }
  .closing__title {
    font-size: 24px;
  }
  .btn--cta {
    width: 100%;
    max-width: 360px;
    min-width: 0;
    padding: 18px 24px;
  }
  .btn--cta-lg {
    padding: 20px 24px;
    font-size: 17px;
  }
  .requirements__box {
    padding: 22px 20px;
  }
  .faq-question {
    padding: 16px 18px;
  }
  .faq-answer {
    padding: 0 18px 16px 36px;
  }
}
@media (max-width: 360px) {
  .hero__title {
    font-size: 26px;
  }
  .section-title {
    font-size: 22px;
  }
}
/* --- 21. Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}
/* --- 22. Print --- */
@media print {
  .site-header, .closing, .btn--cta, .btn--header {
    display: none;
  }
  body {
    color: #000;
    background: #fff;
  }
}