:root {
  --bg: #f7f8fb;
  --white: #ffffff;
  --ink: #4f5f73;
  --ink-soft: #6f7f92;
  --line: rgba(122, 142, 166, 0.18);
  --rose: #f6e5ea;
  --cream: #f6f1ea;
  --blue: #edf4fb;
  --green: #edf4ef;
  --lavender: #eef0fb;
  --accent: #90a7c5;
  --accent-deep: #7088a8;
  --accent-soft: #dbe6f5;
  --shadow: 0 20px 50px rgba(113, 131, 160, 0.10);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --container: min(1120px, calc(100vw - 32px));
  --narrow: min(860px, calc(100vw - 32px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: linear-gradient(180deg, #fbfcff 0%, #f8f7fb 100%);
  font-family: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", system-ui, sans-serif;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

:focus-visible {
  outline: 3px solid rgba(144, 167, 197, 0.38);
  outline-offset: 4px;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -48px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background: var(--white);
  box-shadow: var(--shadow);
  z-index: 1000;
}

.skip-link:focus {
  top: 12px;
}

.container {
  width: var(--container);
  margin-inline: auto;
}

.section-inner,
.header-inner,
.hero-layout,
.footer-grid,
.solution-layout,
.message-layout,
.join-layout,
.contact-layout {
  display: grid;
  gap: 34px;
}

.section-diagonal {
  position: relative;
  padding: 96px 0;
  overflow: clip;
}

.section-diagonal::before,
.section-diagonal::after {
  content: "";
  position: absolute;
  left: -4vw;
  right: -4vw;
  height: 84px;
  background: inherit;
  z-index: 0;
}

.section-diagonal::before {
  top: -42px;
  transform: skewY(-3deg);
}

.section-diagonal::after {
  bottom: -42px;
  transform: skewY(3deg);
}

.section-diagonal > * {
  position: relative;
  z-index: 1;
}

.hero-bg {
  background:
    linear-gradient(135deg, rgba(249, 251, 255, 0.82) 0%, rgba(245, 238, 244, 0.72) 52%, rgba(238, 244, 251, 0.78) 100%),
    url('assets/hero-community-illustration.png') center center / cover no-repeat;
}
.section-pastel { background: linear-gradient(180deg, #f7f8fc 0%, #f4f0f7 100%); }
.section-cream { background: linear-gradient(180deg, #fbf8f2 0%, #f6eee6 100%); }
.section-softblue { background: linear-gradient(180deg, #eef5fb 0%, #edf1fb 100%); }
.section-pink { background: linear-gradient(180deg, #fbf3f6 0%, #f7ebf1 100%); }
.section-white { background: linear-gradient(180deg, #ffffff 0%, #f9fbff 100%); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(251, 252, 255, 0.78);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(122, 142, 166, 0.14);
}

.header-inner {
  grid-template-columns: auto 1fr;
  align-items: center;
  min-height: 74px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: linear-gradient(135deg, #ebd7de, #d7e3f2);
  color: var(--accent-deep);
  font-weight: 900;
}

.brand-text {
  font-size: 0.96rem;
  letter-spacing: 0.03em;
}

.header-nav {
  display: flex;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 12px;
}

.header-nav a {
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--ink-soft);
  background: rgba(255,255,255,0.68);
  border: 1px solid rgba(122, 142, 166, 0.12);
  font-weight: 700;
  font-size: 0.94rem;
}

.hero-layout {
  grid-template-columns: 1fr;
  align-items: center;
}

.solution-layout,
.message-layout,
.contact-layout {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: start;
  gap: 48px;
}

.hero-copy h1,
h2 {
  margin: 0;
  line-height: 1.18;
  letter-spacing: -0.03em;
}

.hero-copy h1 {
  font-size: clamp(2.4rem, 4vw, 4.4rem);
}

h2 {
  font-size: clamp(1.8rem, 3vw, 2.9rem);
}

.eyebrow,
.price-label {
  display: inline-flex;
  margin: 0 0 16px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(255,255,255,0.7);
  border: 1px solid rgba(122, 142, 166, 0.12);
  color: var(--accent-deep);
  font-size: 0.84rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.lead,
.section-copy,
.section-head p,
.join-lead,
.message-copy p,
.contact-copy p {
  color: var(--ink-soft);
  font-size: 1.04rem;
}

.hero-actions,
.fit-tags,
.contact-links,
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-actions { margin-top: 26px; }

.fit-tags span {
  display: inline-flex;
  align-items: center;
  padding: 10px 16px;
  border-radius: 999px;
  background: rgba(255,255,255,0.78);
  border: 1px solid rgba(122, 142, 166, 0.12);
  color: var(--ink);
  font-weight: 700;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 14px 22px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 0.98rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, #95abc7, #7f98bb);
  box-shadow: 0 16px 32px rgba(123, 144, 177, 0.24);
}

.btn-secondary {
  color: var(--ink);
  background: rgba(255,255,255,0.82);
  border: 1px solid rgba(122, 142, 166, 0.14);
}

.btn-block { width: 100%; }

.hero-figure,
.concept-figure,
.message-photo-card,
.profile-card,
.quote-box,
.issue-card,
.price-panel,
.contact-card,
.mini-stat {
  border-radius: var(--radius-xl);
  background: rgba(255,255,255,0.76);
  border: 1px solid rgba(122, 142, 166, 0.10);
  box-shadow: var(--shadow);
}

.hero-figure,
.concept-figure,
.message-photo-card,
.profile-card {
  overflow: hidden;
}

.hero-layout {
  min-height: min(72vh, 760px);
  align-content: center;
}

.hero-copy {
  max-width: 760px;
}

.solution-visual {
  display: grid;
  gap: 18px;
}

.hero-copy-panel {
  padding: 36px;
  border-radius: var(--radius-xl);
  background: rgba(255,255,255,0.54);
  border: 1px solid rgba(122, 142, 166, 0.10);
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
}

.narrow-block {
  width: var(--narrow);
  margin-inline: auto;
}

.quote-stack {
  display: grid;
  gap: 16px;
  margin-top: 28px;
}

.quote-box {
  padding: 22px 24px;
}

.quote-box p {
  margin: 0 0 8px;
}

.quote-box cite {
  color: var(--accent-deep);
  font-style: normal;
  font-weight: 700;
}

.compact-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 28px;
}

.minimal-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.issue-card {
  padding: 24px;
  text-align: center;
}

.issue-card h3,
.contact-card h3 {
  margin: 0 0 8px;
  font-size: 1.1rem;
}

.issue-card p,
.contact-card p,
.message-photo-card figcaption span,
.price-sub {
  color: var(--ink-soft);
}

.value-list {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  display: grid;
  gap: 14px;
}

.value-list li {
  display: grid;
  gap: 4px;
  padding: 18px 18px 18px 22px;
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.72);
  border: 1px solid rgba(122, 142, 166, 0.10);
  box-shadow: var(--shadow);
}

.value-list strong {
  color: var(--ink);
}

.value-list span {
  color: var(--ink-soft);
}

.concept-figure,
.message-photo-card,
.profile-card {
  width: 100%;
}

.concept-figure {
  display: grid;
  place-items: center;
}

.concept-figure img {
  width: 100%;
  aspect-ratio: 16 / 8;
  max-height: 500px;
  object-fit: contain;
  object-position: center center;
  margin-inline: auto;
}

.message-photo-card,
.profile-card {
  display: grid;
  justify-items: center;
}

.message-photo-card img,
.profile-card img {
  width: 100%;
  aspect-ratio: 16 / 7;
  max-height: 460px;
  object-fit: contain;
  object-position: center center;
  margin-inline: auto;
  background: rgba(255,255,255,0.84);
}

.compact-photo img {
  aspect-ratio: 16 / 7;
  object-position: center center;
}

.message-photo-card figcaption {
  display: grid;
  gap: 6px;
  padding: 18px 20px 22px;
  width: 100%;
}

.mini-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 24px;
}

.mini-stat {
  padding: 22px 18px;
  text-align: center;
}

.mini-stat strong {
  display: block;
  margin-bottom: 4px;
  color: var(--accent-deep);
  font-size: 1.24rem;
}

.price-panel,
.contact-card {
  padding: 26px;
}

.join-layout {
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 420px);
  align-items: start;
}

.cta-section {
  padding-top: 76px;
  padding-bottom: 76px;
}

.cta-panel {
  display: grid;
  grid-template-columns: 1.2fr auto;
  gap: 24px;
  align-items: center;
  padding: 34px;
  border-radius: var(--radius-xl);
  background: rgba(255,255,255,0.82);
  border: 1px solid rgba(122, 142, 166, 0.12);
  box-shadow: var(--shadow);
}

.cta-title {
  margin: 0;
  font-size: clamp(1.3rem, 2.3vw, 2rem);
  line-height: 1.5;
  font-weight: 800;
}

.cta-action {
  display: flex;
  justify-content: flex-end;
}

.price-main {
  margin: 10px 0 0;
  font-size: 1.15rem;
  font-weight: 800;
}

.price-main span {
  font-size: clamp(2.8rem, 4vw, 4.5rem);
  line-height: 1;
  color: var(--accent-deep);
}

.contact-links a,
.footer-links a {
  color: var(--accent-deep);
  font-weight: 700;
}

.faq-list {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.faq-list details {
  padding: 0 22px;
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.8);
  border: 1px solid rgba(122, 142, 166, 0.12);
  box-shadow: var(--shadow);
}

.faq-list summary {
  position: relative;
  list-style: none;
  padding: 20px 34px 20px 0;
  cursor: pointer;
  font-weight: 800;
}

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

.faq-list summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  color: var(--accent-deep);
  font-size: 1.5rem;
}

.faq-list details[open] summary::after { content: "−"; }

.faq-list p {
  margin: 0 0 20px;
  color: var(--ink-soft);
}

.site-footer {
  padding: 36px 0 44px;
  background: linear-gradient(180deg, #f3f6fb 0%, #edf2f8 100%);
}

.footer-grid {
  grid-template-columns: 1fr;
  justify-items: center;
  text-align: center;
  gap: 16px;
  align-items: center;
}

.footer-links {
  justify-content: center;
}

.copyright {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

@media (max-width: 1040px) {
  .minimal-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 860px) {
  .section-diagonal {
    padding: 72px 0;
  }

  .hero-bg {
    background-position: center center;
    background-size: cover;
  }

  .hero-layout {
    min-height: calc(100svh - 74px);
    align-content: center;
    justify-items: center;
  }

  .header-inner,
  .hero-layout,
  .solution-layout,
  .message-layout,
  .join-layout,
  .contact-layout,
  .footer-grid,
  .cta-panel {
    grid-template-columns: 1fr;
  }

  .header-inner {
    padding: 12px 0;
    gap: 14px;
  }

  .header-nav {
    justify-content: flex-start;
  }

  .mini-stats {
    grid-template-columns: 1fr;
  }

  .footer-links {
    justify-content: flex-start;
  }

  .cta-action {
    justify-content: flex-start;
  }

  .solution-visual,
  .concept-figure,
  .message-photo-card,
  .profile-card,
  .contact-layout,
  .message-layout {
    justify-items: center;
  }

  .message-photo-card img,
  .profile-card img,
  .concept-figure img {
    width: min(100%, 520px);
    aspect-ratio: 16 / 10;
    max-height: 300px;
    object-fit: contain;
    object-position: center center;
    margin-inline: auto;
    background: rgba(255,255,255,0.72);
  }
}

@media (max-width: 640px) {
  .minimal-grid {
    grid-template-columns: 1fr;
  }

  .hero-bg {
    background-position: center top;
    background-size: cover;
  }

  .hero-copy h1 {
    font-size: 2.15rem;
  }

  h2 {
    font-size: 1.7rem;
  }

  .btn,
  .btn-block {
    width: 100%;
  }

  .hero-actions,
  .fit-tags,
  .contact-links,
  .footer-links {
    flex-direction: column;
  }

  .hero-copy-panel,
  .cta-panel {
    padding: 24px;
  }

  .hero-copy-panel {
    background: rgba(255,255,255,0.68);
  }

  .compact-photo img {
    width: min(100%, 520px);
    aspect-ratio: 16 / 10;
    max-height: 300px;
    object-fit: contain;
    object-position: center center;
    margin-inline: auto;
  }

  .hero-figure,
  .concept-figure,
  .message-photo-card,
  .profile-card,
  .quote-box,
  .issue-card,
  .price-panel,
  .contact-card,
  .mini-stat {
    border-radius: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}