:root {
  --color-text: #111827;
  --color-muted: #6b7280;
  --color-border: #e5e7eb;
  --color-accent: #2563eb;
  --color-accent-dark: #1d4ed8;
  --color-accent-soft: #eff6ff;
  --color-line: #16a34a;
  --color-line-dark: #15803d;
  --color-surface: #ffffff;
  --shadow-card: 0 8px 22px rgba(17, 24, 39, 0.04);
  --shadow-strong: 0 12px 30px rgba(37, 99, 235, 0.08);
  --radius: 10px;
}

body[data-theme="green"] {
  --color-accent: #059669;
  --color-accent-dark: #047857;
  --color-accent-soft: #ecfdf5;
}

body[data-theme="orange"] {
  --color-accent: #ea580c;
  --color-accent-dark: #c2410c;
  --color-accent-soft: #fff7ed;
}

body[data-theme="purple"] {
  --color-accent: #7c3aed;
  --color-accent-dark: #6d28d9;
  --color-accent-soft: #f5f3ff;
}

body[data-radius="small"] {
  --radius: 6px;
}

body[data-radius="large"] {
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-surface);
  color: var(--color-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.7;
}

body.has-mobile-cta {
  padding-bottom: 84px;
}

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

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

.container {
  width: min(100% - 32px, 1120px);
  margin: 0 auto;
}

.section {
  padding: 72px 0;
}

.compact {
  padding: 58px 0;
}

.tinted {
  background: var(--color-accent-soft);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(16px);
}

.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  text-decoration: none;
  white-space: nowrap;
}

.brand-logo {
  width: 34px;
  height: 34px;
  object-fit: contain;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
  color: var(--color-muted);
  font-size: 13px;
  font-weight: 800;
}

.site-nav a {
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--color-accent);
}

.header-phone {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-text);
  font-size: 14px;
  font-weight: 900;
  text-decoration: none;
  white-space: nowrap;
}

.phone-link span {
  color: var(--color-muted);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0;
}

.header-phone:hover {
  color: var(--color-accent);
}

.btn {
  min-width: 0;
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-weight: 900;
  text-decoration: none;
  white-space: nowrap;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

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

.btn-line {
  background: var(--color-line);
  color: #ffffff;
  box-shadow: 0 12px 26px rgba(22, 163, 74, 0.22);
}

.btn-line:hover {
  background: var(--color-line-dark);
}

.btn-secondary {
  background: var(--color-text);
  color: #ffffff;
}

.btn-outline {
  border-color: var(--color-border);
  background: #ffffff;
  color: var(--color-text);
}

.btn-outline.dark {
  border-color: rgba(255, 255, 255, 0.3);
  background: transparent;
  color: #ffffff;
}

.header-cta {
  min-height: 42px;
  padding: 9px 15px;
  font-size: 14px;
}

.hero {
  padding-top: 58px;
  overflow: hidden;
}

.hero-grid,
.split-grid {
  display: grid;
  align-items: center;
  gap: 48px;
}

.hero-grid {
  grid-template-columns: minmax(0, 1.02fr) minmax(320px, 0.98fr);
}

.split-grid {
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1.05fr);
}

.reverse {
  grid-template-columns: minmax(320px, 1.02fr) minmax(0, 0.98fr);
}

.eyebrow,
.section-label,
.course-tag,
.voice-type {
  margin: 0 0 12px;
  color: color-mix(in srgb, var(--color-accent), #4b5563 34%);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
}

h1,
h2,
h3,
p,
blockquote {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  font-size: clamp(34px, 6.2vw, 56px);
  line-height: 1.14;
}

h2 {
  margin: 0 0 16px;
  font-size: clamp(26px, 3.4vw, 36px);
  line-height: 1.22;
}

h3 {
  margin: 0 0 10px;
  font-size: 19px;
  line-height: 1.35;
}

p,
blockquote {
  margin: 0;
}

.hero-lead,
.section-heading p,
.split-grid p,
.final-cta p {
  color: var(--color-muted);
  font-size: 17px;
}

.hero-lead {
  max-width: 640px;
  margin-top: 22px;
}

.cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.hero-cta-group {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.hero-cta-group .btn-line {
  grid-column: 1 / -1;
}

.microcopy {
  margin-top: 12px;
  color: var(--color-muted);
  font-size: 14px;
}

.hero-panel {
  position: relative;
}

.hero-panel::before {
  content: "";
  position: absolute;
  inset: 28px -12px -16px 42px;
  background: var(--color-accent-soft);
  border-radius: var(--radius);
  z-index: -1;
}

.hero-panel img,
.rounded-image {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: 0 12px 32px rgba(17, 24, 39, 0.055);
}

.hero-card {
  position: absolute;
  right: 18px;
  bottom: 18px;
  display: grid;
  gap: 2px;
  max-width: min(280px, calc(100% - 36px));
  padding: 16px 18px;
  border: 1px solid rgba(255, 255, 255, 0.65);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 16px 36px rgba(17, 24, 39, 0.12);
}

.hero-card strong {
  color: var(--color-text);
}

.hero-card span {
  color: var(--color-muted);
  font-size: 13px;
  font-weight: 700;
}

.card-grid,
.course-layout,
.result-grid,
.voice-grid {
  display: grid;
  gap: 18px;
}

.card-grid,
.course-layout,
.result-grid,
.voice-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card-grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.promise-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.promise-card {
  display: grid;
  gap: 12px;
  padding: 26px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: #ffffff;
}

.promise-card span {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: var(--color-accent-soft);
  color: color-mix(in srgb, var(--color-accent), white 20%);
  font-size: 14px;
  font-weight: 900;
}

.promise-card h3 {
  margin-bottom: 0;
}

.promise-card p {
  color: var(--color-muted);
}

.card,
.course-card,
.result-card,
.voice-card {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: none;
}

.card,
.course-card,
.result-card,
.voice-card {
  padding: 24px;
}

.card p,
.course-card p,
.result-card p,
.voice-card span,
.note {
  color: var(--color-muted);
}

.section-heading {
  max-width: 720px;
  margin-bottom: 32px;
}

.centered {
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.info-list {
  display: grid;
  margin-top: 24px;
  border-top: 1px solid var(--color-border);
}

.info-list div {
  display: grid;
  grid-template-columns: 76px 1fr;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border);
}

.info-list span {
  color: var(--color-muted);
  font-size: 14px;
  font-weight: 900;
}

.info-list strong {
  color: var(--color-text);
  font-weight: 800;
}

.about-media {
  position: relative;
}

.about-points {
  position: absolute;
  right: 14px;
  bottom: 14px;
  left: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.about-points span {
  padding: 7px 10px;
  border: 1px solid rgba(255, 255, 255, 0.74);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--color-text);
  font-size: 12px;
  font-weight: 900;
  box-shadow: 0 8px 18px rgba(17, 24, 39, 0.07);
}

.course-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.course-grade {
  color: var(--color-text);
  font-size: 15px;
  font-weight: 900;
}

.course-card.featured {
  border-color: color-mix(in srgb, var(--color-accent), white 76%);
  background: linear-gradient(180deg, #ffffff 0%, color-mix(in srgb, var(--color-accent-soft), white 58%) 100%);
  box-shadow: none;
}

.simple-price-list {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.simple-price-list div {
  display: grid;
  gap: 6px;
  padding: 22px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: #ffffff;
  box-shadow: none;
}

.simple-price-list span {
  color: var(--color-muted);
  font-size: 14px;
  font-weight: 900;
}

.simple-price-list strong {
  color: color-mix(in srgb, var(--color-accent), #111827 10%);
  font-size: clamp(22px, 4vw, 28px);
  line-height: 1.2;
}

.payment-methods {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 14px;
  margin-top: 16px;
  padding: 16px 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: #ffffff;
}

.payment-methods > span {
  color: var(--color-muted);
  font-size: 14px;
  font-weight: 900;
}

.payment-methods ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.payment-methods li {
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--color-accent-soft);
  color: var(--color-text);
  font-size: 13px;
  font-weight: 900;
}

.price-consult {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 18px;
  padding: 18px;
  border: 1px solid color-mix(in srgb, var(--color-accent), white 78%);
  border-radius: var(--radius);
  background: #ffffff;
}

.price-consult span {
  color: var(--color-text);
  font-weight: 900;
}

.price-consult .btn {
  min-height: 44px;
  padding: 10px 16px;
  white-space: nowrap;
}

.note {
  margin-top: 16px;
}

.result-card {
  display: grid;
  gap: 6px;
  text-align: center;
}

.result-card span {
  color: var(--color-accent);
  font-size: 13px;
  font-weight: 900;
}

.result-card strong {
  font-size: 24px;
  line-height: 1.2;
}

.voice-card {
  display: grid;
  gap: 12px;
}

.voice-card blockquote {
  color: var(--color-text);
  font-size: 16px;
  font-weight: 700;
}

.voice-card span {
  font-size: 14px;
  font-weight: 800;
}

.teacher-stack {
  max-width: 860px;
}

.teacher-image {
  margin: 24px 0;
}

.teacher-profile {
  display: grid;
  gap: 10px;
  margin: -8px 0 22px;
  padding: 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: #ffffff;
  box-shadow: none;
}

.teacher-profile div {
  display: grid;
  gap: 2px;
}

.teacher-profile span {
  color: var(--color-accent);
  font-size: 13px;
  font-weight: 900;
}

.teacher-profile strong {
  color: var(--color-text);
  font-size: 23px;
  line-height: 1.25;
}

.teacher-profile p {
  color: var(--color-muted);
  font-size: 15px;
}

.two-column {
  display: grid;
  gap: 48px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.news-list {
  display: grid;
  margin: 20px 0 0;
  padding: 0;
  border-top: 1px solid var(--color-border);
  list-style: none;
}

.news-list li {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 18px;
  padding: 18px 0;
  border-bottom: 1px solid var(--color-border);
}

.blog-list a {
  display: grid;
  padding: 18px 0;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
  font-weight: 900;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.news-list time {
  color: var(--color-accent);
  font-size: 13px;
  font-weight: 900;
}

.blog-list {
  display: grid;
  margin-top: 20px;
  border-top: 1px solid var(--color-border);
}

.blog-list a:hover {
  padding-left: 6px;
  color: var(--color-accent);
}

.blog-more {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: 24px auto 0;
  padding: 10px 22px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: #ffffff;
  color: var(--color-text);
  font-weight: 900;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.blog-more:hover {
  border-color: color-mix(in srgb, var(--color-accent), white 46%);
  color: var(--color-accent);
}

.narrow {
  width: min(100% - 32px, 820px);
}

.faq-list {
  display: grid;
  gap: 12px;
}

details {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: #ffffff;
  box-shadow: none;
}

summary {
  cursor: pointer;
  padding: 18px 20px;
  font-weight: 900;
}

details p {
  padding: 0 20px 20px;
  color: var(--color-muted);
}

.access-list {
  display: grid;
  gap: 14px;
  margin: 24px 0 0;
}

.access-list div {
  display: grid;
  gap: 2px;
}

.access-list dt {
  color: var(--color-muted);
  font-size: 13px;
  font-weight: 900;
}

.access-list dd {
  margin: 0;
  font-weight: 800;
}

.access-list a,
.footer-main a {
  transition: color 0.2s ease;
}

.access-list a:hover,
.footer-main a:hover {
  color: var(--color-accent);
}

.map-embed {
  min-height: 340px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: none;
}

.map-embed iframe {
  width: 100%;
  height: 340px;
  display: block;
  border: 0;
}

.final-cta {
  padding: 64px 0;
  background: var(--color-text);
  color: #ffffff;
}

.final-cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.final-cta h2 {
  margin-bottom: 10px;
}

.final-cta p {
  color: #d1d5db;
}

.final-cta .section-label {
  color: #93c5fd;
}

.mobile-fixed-cta {
  position: fixed;
  right: 12px;
  bottom: 12px;
  left: 12px;
  z-index: 30;
  display: none;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  padding: 8px;
  border: 1px solid rgba(255, 255, 255, 0.75);
  border-radius: calc(var(--radius) + 4px);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 16px 40px rgba(17, 24, 39, 0.18);
  backdrop-filter: blur(16px);
}

.mobile-fixed-cta[data-count="1"] {
  grid-template-columns: 1fr;
}

.mobile-fixed-cta[data-count="2"] {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.mobile-fixed-cta .btn {
  min-height: 48px;
  padding: 10px 8px;
  font-size: clamp(11px, 3.2vw, 13px);
  line-height: 1.2;
}

.mobile-fixed-cta .btn-line {
  grid-column: auto;
}

.site-footer {
  padding: 28px 0;
  border-top: 1px solid var(--color-border);
}

.footer-inner {
  display: grid;
  gap: 16px;
  color: var(--color-muted);
  font-size: 14px;
}

.footer-main,
.sns-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px 20px;
}

.footer-main strong {
  color: var(--color-text);
}

.sns-links a {
  color: var(--color-muted);
  font-weight: 900;
  text-decoration: none;
}

.sns-links a:hover {
  color: var(--color-accent);
}

.is-hidden {
  display: none !important;
}

@media (max-width: 980px) {
  .site-nav {
    gap: 12px;
    font-size: 13px;
  }

  .card-grid.four {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 860px) {
  .header-inner {
    min-height: 64px;
  }

  .site-nav {
    display: none;
  }

  .header-cta {
    display: none;
  }

  .header-phone {
    margin-left: auto;
  }

  .hero-grid,
  .split-grid,
  .reverse,
  .two-column {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 40px;
  }

  .card-grid,
  .promise-grid,
  .course-layout,
  .simple-price-list,
  .result-grid,
  .voice-grid,
  .card-grid.four {
    grid-template-columns: 1fr;
  }

  .final-cta-inner {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 560px) {
  body.has-mobile-cta {
    padding-bottom: 86px;
  }

  .container,
  .narrow {
    width: min(100% - 24px, 1120px);
  }

  .section {
    padding: 52px 0;
  }

  .brand-logo {
    width: 30px;
    height: 30px;
  }

  .header-phone {
    font-size: 13px;
  }

  .cta-group,
  .cta-group .btn {
    width: 100%;
  }

  .hero-cta-group {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-cta-group .btn {
    padding-right: 10px;
    padding-left: 10px;
    font-size: clamp(12px, 3.9vw, 16px);
    line-height: 1.2;
  }

  .info-list div,
  .news-list li {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .price-consult {
    align-items: stretch;
    flex-direction: column;
  }

  .price-consult .btn {
    width: 100%;
  }

  .mobile-fixed-cta {
    display: grid;
  }

  .footer-inner {
    align-items: flex-start;
  }

  .footer-main,
  .sns-links {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }
}