/* ===================================
   CROSSROADS - STYLE.CSS
   個別指導クロスローズ 新規HP
   Light Mode / Juku Design
   =================================== */

/* ===== CSS VARIABLES ===== */
:root {
  /* メインカラー：深い藍色 × 明るい印象 */
  --color-bg: #f5f7fc;
  --color-bg-2: #eef1f9;
  --color-bg-card: #ffffff;
  --color-bg-card-hover: #f0f4ff;
  --color-primary: #2e4bcc;
  /* 藍色（信頼・知性） */
  --color-primary-light: #5572e8;
  --color-primary-pale: #e8ecfb;
  --color-accent: #e8460a;
  /* 朱色（情熱・CTA） */
  --color-accent-light: #ff6535;
  --color-gold: #f5a623;
  --color-green: #1a8a5e;
  --color-line: #06c755;
  --color-text: #1a1f36;
  --color-text-sub: #3d4466;
  --color-text-muted: #6b7280;
  --color-border: #d6dcf0;
  --color-border-light: #e8ecf6;
  --font-main: 'Noto Sans JP', sans-serif;
  --font-display: 'Oswald', sans-serif;
  --border-radius: 12px;
  --border-radius-lg: 20px;
  --shadow-sm: 0 2px 8px rgba(46, 75, 204, 0.08);
  --shadow-card: 0 4px 24px rgba(46, 75, 204, 0.10);
  --shadow-hover: 0 8px 32px rgba(46, 75, 204, 0.18);
  --shadow-glow: 0 0 32px rgba(46, 75, 204, 0.15);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --container-max: 1200px;
}

/* ===== RESET & BASE ===== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-main);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
}

/* ===== UTILITIES ===== */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

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

.text-accent {
  color: var(--color-accent);
}

.pc-only {
  display: inline;
}

.sp-only {
  display: none;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 50px;
  font-family: var(--font-main);
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  white-space: nowrap;
  text-decoration: none;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: #fff;
  box-shadow: 0 4px 20px rgba(46, 75, 204, 0.35);
}

.btn--primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(46, 75, 204, 0.5);
}

.btn--accent {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 4px 16px rgba(232, 70, 10, 0.35);
}

.btn--accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(232, 70, 10, 0.5);
  background: var(--color-accent-light);
}

.btn--ghost {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn--ghost:hover {
  background: var(--color-primary);
  color: #fff;
}

.btn--line {
  background: var(--color-line);
  color: #fff;
  font-size: 1.1rem;
  padding: 18px 40px;
  box-shadow: 0 4px 24px rgba(6, 199, 85, 0.35);
}

.btn--line:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(6, 199, 85, 0.5);
  background: #0da94a;
}

.btn--video {
  background: var(--color-primary-pale);
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  padding: 16px 36px;
  font-size: 1.05rem;
}

.btn--video:hover {
  background: var(--color-primary);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.btn--lg {
  padding: 18px 36px;
  font-size: 1.05rem;
}

.btn--xl {
  padding: 22px 52px;
  font-size: 1.2rem;
}

.btn-icon {
  font-size: 1.2em;
}

.btn-play {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--color-primary);
  border-radius: 50%;
  font-size: 0.85rem;
  color: #fff;
}

.btn--video:hover .btn-play {
  background: #fff;
  color: var(--color-primary);
}

.line-icon {
  width: 28px;
  height: 28px;
}

/* ===== FLOATING CTA ===== */
.floating-cta {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--color-line);
  color: #fff;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 14px 22px 14px 18px;
  border-radius: 50px;
  box-shadow: 0 4px 24px rgba(6, 199, 85, 0.4);
  transition: var(--transition);
  opacity: 0;
  transform: translateY(20px);
}

.floating-cta.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.floating-cta:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(6, 199, 85, 0.6);
}

.floating-cta__icon {
  font-size: 1.3rem;
}

/* ===== HEADER ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 900;
  padding: 16px 0;
  transition: var(--transition);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border-light);
}

.header.scrolled {
  padding: 10px 0;
  box-shadow: 0 2px 20px rgba(46, 75, 204, 0.1);
}

.header__inner {
  display: flex;
  align-items: center;
  gap: 32px;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.header__logo-img {
  height: 64px;
  width: auto;
  object-fit: contain;
  display: block;
  filter: drop-shadow(0 1px 4px rgba(0, 0, 0, 0.12));
  transition: var(--transition);
}

.header__logo:hover .header__logo-img {
  opacity: 0.85;
  transform: scale(1.02);
}

.footer__logo-link {
  display: inline-flex;
}

.footer__logo-img {
  height: 60px;
  width: auto;
  object-fit: contain;
  display: block;
  /* フッターは暗背景なので通常表示 */
  filter: drop-shadow(0 1px 6px rgba(255, 255, 255, 0.2));
}

.logo-cross {
  color: var(--color-accent);
  font-size: 1.6rem;
  font-weight: 900;
  line-height: 1;
}

.logo-text {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
}

.logo-text strong {
  display: block;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.05em;
}

.header__nav {
  flex: 1;
  margin-left: auto;
}

.header__nav ul {
  display: flex;
  gap: 32px;
  justify-content: flex-end;
}

.header__nav a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-sub);
  transition: var(--transition);
  position: relative;
}

.header__nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: center;
  transition: var(--transition);
}

.header__nav a:hover {
  color: var(--color-primary);
}

.header__nav a:hover::after {
  transform: scaleX(1);
}

.header__cta {
  flex-shrink: 0;
  padding: 10px 20px;
  font-size: 0.9rem;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== SECTION COMMON ===== */
section {
  padding: 100px 0;
}

.section-header {
  margin-bottom: 64px;
}

.section-label {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 12px;
  display: block;
}

.section-header h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 16px;
  color: var(--color-text);
}

.section-desc {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 120px 0 80px;
  /* 藍色グラデーション背景 ― 学習・知性・信頼のイメージ */
  background:
    linear-gradient(150deg, #1a3080 0%, #2e4bcc 45%, #1a5276 100%);
}

.hero__bg-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 20% 40%, rgba(255, 255, 255, 0.08) 0%, transparent 55%),
    radial-gradient(ellipse 50% 70% at 85% 25%, rgba(232, 70, 10, 0.18) 0%, transparent 50%),
    url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  z-index: 1;
}

.hero__particles {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
}

.hero__label {
  font-size: 0.9rem;
  letter-spacing: 0.25em;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 24px;
  font-family: var(--font-display);
  text-transform: uppercase;
}

.hero__catch {
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.25;
  margin-bottom: 32px;
  color: #fff;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.25);
}

.hero__catch--accent {
  color: #ffd54f;
  /* 温かみのあるゴールド */
}

.hero__catch--highlight {
  background: linear-gradient(90deg, #ffd54f, #ffab40);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__sub {
  font-size: clamp(0.9rem, 2vw, 1.1rem);
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: 48px;
  line-height: 1.9;
}

.hero__sub strong {
  color: #fff;
}

.hero__cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  margin-bottom: 56px;
}

.hero__cta-group .btn--ghost {
  border-color: rgba(255, 255, 255, 0.6);
  color: #fff;
}

.hero__cta-group .btn--ghost:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: #fff;
}

.hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.badge {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 8px 16px;
  border-radius: 50px;
  font-size: 0.85rem;
  backdrop-filter: blur(8px);
  color: rgba(255, 255, 255, 0.9);
  transition: var(--transition);
}

.badge:hover {
  background: rgba(255, 255, 255, 0.22);
  border-color: #fff;
  color: #fff;
}

.badge__icon {
  font-size: 1rem;
}

.hero__scroll-hint {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  z-index: 2;
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
}

.hero__scroll-line {
  width: 1px;
  height: 50px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.7), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0% {
    opacity: 0;
    transform: scaleY(0);
    transform-origin: top;
  }

  50% {
    opacity: 1;
    transform: scaleY(1);
  }

  100% {
    opacity: 0;
    transform: scaleY(0);
    transform-origin: bottom;
  }
}

/* ===== BRAND IMAGE ===== */
.brand-image {
  padding: 0;
  padding-top: 72px; /* fixed headerの高さ分 */
  margin: 0;
  background: #0a1628; /* 万が一画像が遅れても背景を馴染ませる */
  overflow: hidden;
}

.brand-image__inner {
  position: relative;
  overflow: hidden;
  border-radius: 0;
  box-shadow: none;
  max-width: 100%;
  margin: 0;
  width: 100%;
  opacity: 0;
  animation: brandImageReveal 1.2s cubic-bezier(0.2, 0, 0.2, 1) forwards;
}

@keyframes brandImageReveal {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.brand-image__img {
  width: 100% !important; /* 強制的に全幅 */
  height: 55vw;
  max-height: 520px;
  min-height: 300px;
  display: block;
  object-fit: cover;
  object-position: center 30%;
  transform: scale(1.06);
  animation: brandImageZoom 10s ease-out forwards;
}

@keyframes brandImageZoom {
  from { transform: scale(1.06); }
  to { transform: scale(1); }
}


/* ===== SECTION 2: HARM ===== */
.harm {
  background: #fff;
  position: relative;
  overflow: hidden;
}

.harm::before {
  content: '';
  position: absolute;
  top: -40px;
  left: 0;
  right: 0;
  height: 80px;
  background: linear-gradient(180deg, #1a5276 0%, #fff 100%);
  opacity: 0.03;
}

.harm__question {
  text-align: center;
  margin-bottom: 64px;
  padding: 40px;
  background: linear-gradient(135deg, #fff5f2, #fff);
  border-radius: var(--border-radius-lg);
  border-left: 5px solid var(--color-accent);
}

.harm__question-text {
  font-size: clamp(1.4rem, 3.5vw, 2.4rem);
  font-weight: 900;
  line-height: 1.5;
  color: var(--color-text);
}

.harm__question-text strong {
  color: var(--color-accent);
}

.harm__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.harm__card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.harm__card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
  opacity: 0;
  transition: var(--transition);
}

.harm__card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(232, 70, 10, 0.1);
  background: var(--color-bg-card);
}

.harm__card:hover::before {
  opacity: 1;
}

.harm__card-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.harm__card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-text);
}

.harm__card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}

/* ===== BENEFIT SECTION ===== */
.benefit {
  position: relative;
  background: linear-gradient(135deg, var(--color-primary-pale) 0%, #fff 60%);
}

.benefit__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  position: relative;
  z-index: 1;
}

.benefit__item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 20px;
  padding: 40px 32px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.benefit__item::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}

.benefit__item:hover {
  border-color: var(--color-primary);
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.benefit__item:hover::after {
  transform: scaleX(1);
}

.benefit__item-number {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--color-primary-pale);
  line-height: 1;
}

.benefit__item-body h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-text);
}

.benefit__item-body p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}

/* ===== FEATURES SECTION ===== */
.features {
  background: #fff;
}

.features__list {
  display: flex;
  flex-direction: column;
  gap: 80px;
  margin-bottom: 64px;
}

.feature-item {
  position: relative;
}

.feature-item__num {
  font-family: var(--font-display);
  font-size: 8rem;
  font-weight: 700;
  color: var(--color-primary-pale);
  position: absolute;
  top: -20px;
  left: -20px;
  line-height: 1;
  pointer-events: none;
  z-index: 0;
}

.feature-item--reverse .feature-item__num {
  left: auto;
  right: -20px;
}

.feature-item__content {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 48px;
  align-items: center;
  position: relative;
  z-index: 1;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: 48px;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.feature-item--reverse .feature-item__content {
  grid-template-columns: 1fr 200px;
}

.feature-item--reverse .feature-item__icon-wrap {
  order: 2;
}

.feature-item--reverse .feature-item__text {
  order: 1;
}

.feature-item__content:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.feature-item__icon-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 120px;
  height: 120px;
  background: linear-gradient(135deg, var(--color-primary-pale), #e8ecfb);
  border: 2px solid var(--color-primary-pale);
  border-radius: 24px;
  justify-self: center;
  transition: var(--transition);
}

.feature-item__content:hover .feature-item__icon-wrap {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
}

.feature-item__icon {
  font-size: 3.5rem;
}

.feature-item__text h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--color-text);
}

.feature-item__text p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.9;
}

.features__video-cta {
  padding-top: 40px;
}

/* ===== COURSES SECTION ===== */
.courses {
  background: linear-gradient(135deg, #fff 0%, var(--color-primary-pale) 100%);
}

.courses__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  margin-bottom: 40px;
  align-items: start;
}

/* カード共通 */
.course-card {
  border-radius: var(--border-radius-lg);
  padding: 40px 36px;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 28px;
  transition: var(--transition);
  box-shadow: var(--shadow-card);
}

/* スタンダード：メインカラー */
.course-card--main {
  background: linear-gradient(155deg, var(--color-primary) 0%, #1a3080 100%);
  color: #fff;
  border: none;
}

.course-card--main:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(46, 75, 204, 0.35);
}

/* サポート：ライト */
.course-card--light {
  background: var(--color-bg-card);
  border: 2px solid var(--color-border);
  color: var(--color-text);
}

.course-card--light:hover {
  border-color: var(--color-primary);
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

/* おすすめバッジ */
.course-card__badge {
  position: absolute;
  top: -14px;
  left: 28px;
  background: var(--color-gold);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 5px 16px;
  border-radius: 50px;
  letter-spacing: 0.08em;
  box-shadow: 0 4px 12px rgba(245, 166, 35, 0.4);
}

/* ヘッダー */
.course-card__header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.course-card__icon {
  font-size: 2.4rem;
  line-height: 1;
  flex-shrink: 0;
  margin-top: 2px;
}

.course-card__label {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-family: var(--font-display);
  margin-bottom: 6px;
  opacity: 0.75;
}

.course-card--main .course-card__label {
  color: rgba(255, 255, 255, 0.75);
}

.course-card--light .course-card__label {
  color: var(--color-primary);
  opacity: 1;
}

.course-card__name {
  font-size: 1.35rem;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 6px;
}

.course-card__sub {
  font-size: 0.83rem;
  line-height: 1.5;
  opacity: 0.8;
}

/* 価格 */
.course-card__price-wrap {
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius);
  padding: 20px 24px;
}

.course-card--light .course-card__price-wrap {
  background: var(--color-primary-pale);
}

.course-card__price {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 8px;
}

.price-from {
  font-size: 0.85rem;
  font-weight: 600;
  opacity: 0.85;
}

.price-num {
  font-family: var(--font-display);
  font-size: 2.6rem;
  font-weight: 700;
  line-height: 1;
  color: var(--color-gold);
}

.course-card--light .price-num {
  color: var(--color-primary);
}

.price-unit {
  font-size: 0.9rem;
  font-weight: 600;
  opacity: 0.85;
}

.course-card__price-note {
  font-size: 0.8rem;
  opacity: 0.75;
  line-height: 1.6;
}

/* 特徴リスト */
.course-card__features {
  display: flex;
  flex-direction: column;
  gap: 12px;
  list-style: none;
  flex: 1;
}

.course-card__features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.92rem;
  line-height: 1.55;
}

.feature-check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-gold);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

.course-card--light .feature-check {
  background: var(--color-primary);
}

/* こんな方に */
.course-card__target {
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--border-radius);
  padding: 14px 18px;
  font-size: 0.85rem;
  line-height: 1.65;
}

.course-card--light .course-card__target {
  background: var(--color-bg-2);
  border: 1px solid var(--color-border);
}

.target-label {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 6px;
}

.course-card--light .target-label {
  color: var(--color-primary);
}

/* CTAボタン */
.course-card__btn {
  width: 100%;
  justify-content: center;
  border-radius: 14px;
  padding: 17px 20px;
  font-size: 0.97rem;
}

/* ghost ボタンをメインカード用に上書き */
.course-card--light .course-card__btn.btn--ghost {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.course-card--light .course-card__btn.btn--ghost:hover {
  background: var(--color-primary);
  color: #fff;
}

/* 料金比較 */
.courses__comparison {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: 40px;
  margin-top: 32px;
  margin-bottom: 32px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.courses__comparison h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.courses__comparison p {
  color: var(--color-text-muted);
  margin-bottom: 24px;
  font-size: 0.95rem;
}

.comparison-table-wrap {
  overflow-x: auto;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  text-align: center;
  min-width: 600px;
}

.comparison-table th,
.comparison-table td {
  padding: 16px;
  border: 1px solid var(--color-border-light);
  font-size: 0.95rem;
}

.comparison-table thead th {
  background: var(--color-bg-2);
  font-weight: 700;
}

.comparison-table thead th.highlight {
  background: var(--color-primary-pale);
  color: var(--color-primary);
}

.comparison-table thead th span {
  font-size: 0.8rem;
  font-weight: normal;
}

.comparison-table tbody th {
  background: var(--color-bg-2);
  font-weight: 600;
  text-align: left;
}

.comparison-table tbody td.highlight {
  background: rgba(46, 75, 204, 0.03);
  font-weight: 700;
  color: var(--color-primary);
}

.comparison-table tbody td.highlight.price {
  font-size: 1.2rem;
  color: var(--color-accent);
}

@media (max-width: 768px) {
  .courses__comparison {
    padding: 24px 16px;
  }
  .comparison-table th,
  .comparison-table td {
    padding: 12px 8px;
    font-size: 0.85rem;
  }
}

/* 注意事項 */
.courses__note {
  text-align: center;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  background: var(--color-bg-2);
  border: 1px solid var(--color-border-light);
  border-radius: var(--border-radius);
  padding: 14px 20px;
  max-width: 600px;
  margin: 0 auto;
}

/* コース詳細スマホ対応 */
@media (max-width: 768px) {
  .courses__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .course-card {
    padding: 36px 24px;
    gap: 22px;
  }

  .price-num {
    font-size: 2.2rem;
  }
}

/* ===== RESULTS SECTION ===== */

.results {
  background: var(--color-bg);
}

.quote-text {
  font-size: 1.15rem;
  font-style: italic;
  color: var(--color-text-muted);
  padding: 16px 24px;
  background: var(--color-bg-2);
  border-radius: var(--border-radius);
  border-left: 4px solid var(--color-primary);
  max-width: 640px;
  margin: 0 auto;
  text-align: left;
}

.quote-text strong {
  color: var(--color-accent);
}

.results__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 48px;
}

.result-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: 32px;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.result-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.result-card__header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.result-card__avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 900;
  color: #fff;
  flex-shrink: 0;
}

.result-card__univ {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
}

.result-card__name {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 4px;
}

.result-card__before {
  font-size: 0.85rem;
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: 16px;
  background: var(--color-primary-pale);
  padding: 6px 14px;
  border-radius: 50px;
  display: inline-block;
}

.result-card__story {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 20px;
  font-style: italic;
}

.result-card__now {
  background: #e8f5ee;
  border: 1px solid #b2dfcb;
  border-radius: var(--border-radius);
  padding: 12px 16px;
  font-size: 0.85rem;
  color: var(--color-text-sub);
}

.result-card__now-label {
  display: block;
  font-size: 0.75rem;
  color: var(--color-green);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 6px;
}

/* ===== TEACHERS SECTION ===== */
.teachers {
  background: linear-gradient(135deg, #1a2f6e 0%, #2e4bcc 100%);
  position: relative;
  overflow: hidden;
}

.teachers::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}

.teachers .section-label {
  color: rgba(255, 255, 255, 0.6);
}

.teachers .section-header h2 {
  color: #fff;
}

.teachers .section-desc {
  color: rgba(255, 255, 255, 0.72);
}

.teachers__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  position: relative;
  z-index: 1;
}

.teacher-card {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--border-radius-lg);
  padding: 40px 32px;
  text-align: center;
  transition: var(--transition);
  color: #fff;
  backdrop-filter: blur(8px);
}

.teacher-card:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.35);
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

.teacher-card__avatar {
  margin: 0 auto 24px;
  width: 96px;
  height: 96px;
}

.teacher-card__avatar-inner {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background: linear-gradient(135deg, #ffd54f, #ffab40);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--color-primary);
  border: 3px solid rgba(255, 255, 255, 0.3);
}

.teacher-card__name {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: #fff;
}

.teacher-card__name span {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 500;
  color: #ffd54f;
  background: rgba(255, 213, 79, 0.15);
  padding: 2px 10px;
  border-radius: 50px;
  margin-left: 8px;
  vertical-align: middle;
}

.teacher-card__career {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.72);
  margin-bottom: 16px;
  line-height: 1.6;
}

.teacher-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 20px;
}

.tag {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.7);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 4px 12px;
  border-radius: 50px;
}

.teacher-card__message {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.7;
  font-style: italic;
}

/* ===== FAQ SECTION ===== */
.faq {
  background: var(--color-bg-2);
}

.faq__list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq__item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.faq__item:hover {
  border-color: var(--color-primary);
}

.faq__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 24px 28px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text);
  font-family: var(--font-main);
  font-size: 1rem;
  font-weight: 600;
  text-align: left;
  transition: var(--transition);
}

.faq__question:hover {
  color: var(--color-primary);
}

.faq__icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-primary-pale);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: 300;
  flex-shrink: 0;
  transition: var(--transition);
  color: var(--color-primary);
  line-height: 1;
  padding-bottom: 2px;
}

.faq__item.is-open .faq__icon {
  transform: rotate(45deg);
  background: var(--color-primary);
  color: #fff;
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq__answer p {
  padding: 0 28px 28px;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.9;
  border-top: 1px solid var(--color-border-light);
  padding-top: 20px;
}

/* ===== NOTE BANNER ===== */
.note-banner {
  padding: 40px 0;
  background: var(--color-bg);
}

.note-banner__inner {
  background: #ffffff;
  border-radius: 16px;
  padding: 32px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
  border: 1px solid var(--color-border-light);
}

.note-banner__label {
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #41C9B4;
  font-weight: 700;
  margin-bottom: 8px;
}

.note-banner__content h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 6px;
}

.note-banner__content p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.note-banner__actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
}

.btn--note {
  background: #41C9B4;
  color: #fff;
  border: none;
  border-radius: 50px;
  padding: 12px 32px;
  font-weight: 700;
  white-space: nowrap;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  text-decoration: none;
}

.btn--note:hover {
  background: #36b09d;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(65, 201, 180, 0.25);
  color: #fff;
}

.btn--ig {
  background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
  color: #fff;
  border: none;
  border-radius: 50px;
  padding: 12px 32px;
  font-weight: 700;
  white-space: nowrap;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  text-decoration: none;
}

.btn--ig:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(220, 39, 67, 0.3);
  color: #fff;
}

/* ===== CTA SECTION ===== */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, #1a3080 100%);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(ellipse, rgba(255, 255, 255, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.cta-section__inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 820px;
  margin: 0 auto;
}

.cta-section__label {
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-family: var(--font-display);
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 12px;
}

.cta-section__heading {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 20px;
  color: #fff;
}

.cta-section__desc {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 60px;
  line-height: 1.9;
}

.cta-section__flow {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 8px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.flow-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  max-width: 160px;
}

.flow-step__num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.95);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 900;
  flex-shrink: 0;
}

.flow-step__title {
  font-size: 0.9rem;
  font-weight: 700;
  color: #fff;
  text-align: center;
}

.flow-step__desc {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.72);
  text-align: center;
  line-height: 1.6;
}

.flow-arrow {
  font-size: 1.5rem;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 10px;
  align-self: flex-start;
  padding-top: 12px;
}

.cta-section__note {
  margin-top: 20px;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.65);
}

/* ===== FOOTER ===== */
.footer {
  background: #0d1b40;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 60px 0 32px;
  color: rgba(255, 255, 255, 0.75);
}

.footer__inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 48px;
  margin-bottom: 48px;
}

.footer .logo-cross {
  color: #ffd54f;
}

.footer .logo-text {
  color: rgba(255, 255, 255, 0.5);
}

.footer .logo-text strong {
  color: rgba(255, 255, 255, 0.9);
}

.footer__tagline {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.45);
  margin-top: 12px;
}

.footer__nav ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer__nav a {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.55);
  transition: var(--transition);
}

.footer__nav a:hover {
  color: rgba(255, 255, 255, 0.9);
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  gap: 16px;
  flex-wrap: wrap;
}

.footer__bottom p {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.35);
}

.footer__links {
  display: flex;
  gap: 24px;
}

.footer__links a {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.35);
  transition: var(--transition);
}

.footer__links a:hover {
  color: rgba(255, 255, 255, 0.7);
}

/* ===== MODAL ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 20, 60, 0.80);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  backdrop-filter: blur(8px);
}

.modal-overlay.is-open {
  opacity: 1;
  pointer-events: auto;
}

.modal {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 24px;
  padding: 32px;
  max-width: 820px;
  width: 90%;
  position: relative;
  transform: scale(0.9);
  transition: transform 0.3s ease;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.modal-overlay.is-open .modal {
  transform: scale(1);
}

.modal__close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--color-bg-2);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-size: 1rem;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.modal__close:hover {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.modal__video-wrap {
  aspect-ratio: 16/9;
  border-radius: 12px;
  overflow: hidden;
  background: var(--color-bg);
}

.modal__video-wrap iframe {
  width: 100%;
  height: 100%;
  display: block;
}

/* ===== SCROLL ANIMATIONS ===== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}


/* ================================================
   RESPONSIVE - モバイルファースト
   ≤1024px : タブレット
   ≤768px  : スマホ (主要ターゲット)
   ≤480px  : スマホ小
   ================================================ */

/* ----- タブレット ----- */
@media (max-width: 1024px) {
  .feature-item__content {
    grid-template-columns: 150px 1fr;
    gap: 32px;
  }

  .feature-item--reverse .feature-item__content {
    grid-template-columns: 1fr 150px;
  }

  .results__grid,
  .teachers__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .benefit__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ----- スマホ (768px以下) メイン ----- */
@media (max-width: 768px) {

  /* 基本 */
  .container {
    padding: 0 16px;
  }

  section {
    padding: 56px 0;
  }

  .section-header {
    margin-bottom: 36px;
  }

  .section-header h2 {
    font-size: clamp(1.45rem, 6.5vw, 2.2rem);
  }

  .section-desc {
    font-size: 0.93rem;
  }

  .pc-only {
    display: none !important;
  }

  .sp-only {
    display: inline !important;
  }

  /* ----- ヘッダー ----- */
  .header {
    padding: 10px 0;
  }

  .header__logo {
    position: relative;
    z-index: 1100;
    transition: all 0.3s ease;
  }

  /* メニュー展開時のヘッダー自体の背景も同色にする */
  .header.nav-open {
    background: #111827;
    backdrop-filter: none;
    box-shadow: none;
    border-bottom-color: rgba(255, 255, 255, 0.1);
  }

  /* メニュー展開時にロゴを白く反転 */
  .header.nav-open .header__logo {
    filter: brightness(0) invert(1);
  }

  .header__logo-img {
    height: 46px;
  }

  .header__cta {
    display: none;
  }

  .header__nav ul {
    flex-direction: column;
    align-items: center;
    gap: 0;
    width: 100%;
  }

  .header__nav li {
    width: 100%;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.5s ease, transform 0.5s ease;
  }

  .header__nav a {
    display: block;
    text-align: center;
    font-size: 1.2rem;
    font-weight: 700;
    color: #ffffff; /* 白文字 */
    padding: 20px 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08); /* 境界線をさらに控えめに */
    letter-spacing: 0.05em;
  }

  /* ハンバーガー：アニメーション追加 */
  .hamburger {
    display: flex;
    width: 50px; /* 少し大きく */
    height: 50px;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: rgba(46, 75, 204, 0.06);
    flex-direction: column;
    gap: 4px;
    position: relative;
    z-index: 1100;
    border: none;
    cursor: pointer;
  }

  /* CLOSEの文字を追加 */
  .hamburger::after {
    content: 'MENU';
    font-size: 8px;
    font-weight: 700;
    color: var(--color-primary);
    margin-top: 2px;
    transition: all 0.3s ease;
  }

  .hamburger[aria-expanded="true"]::after {
    content: 'CLOSE';
    color: #ffffff;
  }

  .header.nav-open .hamburger {
    background: rgba(255, 255, 255, 0.1);
  }

  .hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-primary);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 2px;
  }

  /* 開いている時の「✕」の色を白に反転 */
  .hamburger[aria-expanded="true"] span {
    background-color: #ffffff;
  }

  /* 開いている時の「✕」アニメーション */
  .hamburger[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .hamburger[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }
  .hamburger[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .header__nav {
    display: flex;
    position: fixed;
    top: 0 !important;
    left: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    height: 100svh !important;
    background: #111827; /* ダークグレー */
    flex-direction: column;
    align-items: center;
    justify-content: flex-start; /* 上から並べる */
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    padding-top: 100px; /* ロゴとかぶらないように余裕を */
    padding-bottom: 60px;
    overflow-y: auto; /* メニュー自体をスクロール可能に */
    -webkit-overflow-scrolling: touch;
  }

  .header__nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  /* ----- 浮遊CTA：フッターではなく画面下に固定、全幅 ----- */
  .floating-cta {
    bottom: 0;
    right: 0;
    left: 0;
    border-radius: 0;
    justify-content: center;
    padding: 18px 20px;
    font-size: 1rem;
    font-weight: 700;
    box-shadow: 0 -4px 20px rgba(6, 199, 85, 0.3);
    gap: 10px;
    padding-bottom: calc(18px + env(safe-area-inset-bottom, 0px));
  }

  /* ----- ブランド画像（スマホ最適化） ----- */
  .brand-image {
    padding-top: 60px; /* スマホヘッダーは小さい */
    background: #0a1628;
    display: block !important; /* 非表示回避 */
  }

  .brand-image__img {
    width: 100% !important;
    height: 60vw;
    min-height: 220px;
    max-height: 360px;
    object-position: center 25%;
  }

  /* ----- ヒーロー ----- */
  .hero {
    padding: 48px 0 56px;
    min-height: auto; /* 画像の下なのでフルスクリーン不要 */
  }

  .hero__label {
    font-size: 0.72rem;
    letter-spacing: 0.15em;
    margin-bottom: 14px;
  }

  .hero__catch {
    font-size: clamp(1.65rem, 8.5vw, 2.6rem);
    line-height: 1.3;
    margin-bottom: 18px;
  }

  .hero__sub {
    font-size: 0.9rem;
    line-height: 1.85;
    margin-bottom: 32px;
  }

  /* CTAボタン：全幅・縦積み */
  .hero__cta-group {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    margin-bottom: 32px;
  }

  .hero__cta-group .btn {
    width: 100%;
    justify-content: center;
    padding: 18px 16px;
    font-size: 0.97rem;
    border-radius: 14px;
  }

  /* バッジ */
  .hero__badges {
    gap: 7px;
  }

  .badge {
    font-size: 0.79rem;
    padding: 7px 12px;
  }

  .hero__scroll-hint {
    display: none;
  }

  /* ----- HARM ----- */
  .harm__question {
    padding: 22px 18px;
    margin-bottom: 28px;
  }

  .harm__question-text {
    font-size: clamp(1.15rem, 6.5vw, 1.75rem);
    line-height: 1.55;
  }

  .harm__grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .harm__card {
    padding: 22px 18px;
    display: block;
    /* 縦並び・崩れ防止 */
  }

  .harm__card-icon {
    font-size: 2rem;
    margin-bottom: 0;
    flex-shrink: 0;
    line-height: 1;
    margin-top: 2px;
  }

  .harm__card>div {
    flex: 1;
  }

  .harm__card h3 {
    font-size: 0.97rem;
    margin-bottom: 6px;
  }

  .harm__card p {
    font-size: 0.86rem;
  }

  /* ----- BENEFIT ----- */
  .benefit__grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .benefit__item {
    padding: 22px 18px;
    flex-direction: row;
    gap: 14px;
    align-items: flex-start;
  }

  .benefit__item-number {
    font-size: 2.6rem;
    min-width: 52px;
    flex-shrink: 0;
  }

  .benefit__item-body h3 {
    font-size: 0.97rem;
  }

  .benefit__item-body p {
    font-size: 0.86rem;
  }

  /* ----- FEATURES ----- */
  .features__list {
    gap: 16px;
    margin-bottom: 32px;
  }

  .feature-item__num {
    display: none;
  }

  .feature-item__content {
    display: flex;
    flex-direction: column;
    padding: 22px 18px;
    gap: 16px;
    text-align: left;
  }

  .feature-item--reverse .feature-item__content {
    display: flex;
    flex-direction: column;
  }

  .feature-item--reverse .feature-item__icon-wrap,
  .feature-item--reverse .feature-item__text {
    order: unset;
  }

  .feature-item__icon-wrap {
    width: 68px;
    height: 68px;
    border-radius: 14px;
  }

  .feature-item__icon {
    font-size: 2rem;
  }

  .feature-item__text h3 {
    font-size: 1.05rem;
    margin-bottom: 8px;
  }

  .feature-item__text p {
    font-size: 0.87rem;
    line-height: 1.8;
  }

  .btn--video {
    width: 100%;
    font-size: 0.92rem;
    padding: 16px;
    border-radius: 14px;
  }

  /* ----- RESULTS ----- */
  .results__grid {
    grid-template-columns: 1fr;
    gap: 16px;
    margin-top: 28px;
  }

  .result-card {
    padding: 22px 18px;
  }

  .result-card__univ {
    font-size: 0.93rem;
  }

  .result-card__story {
    font-size: 0.87rem;
  }

  .quote-text {
    font-size: 0.95rem;
    padding: 14px 16px;
  }

  /* ----- TEACHERS ----- */
  .teachers__grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .teacher-card {
    padding: 26px 18px;
  }

  /* ----- FAQ ----- */
  .faq__question {
    padding: 18px 16px;
    font-size: 0.92rem;
  }

  .faq__answer p {
    padding: 0 16px 18px;
    font-size: 0.88rem;
  }

  /* ----- CTA SECTION ----- */
  .cta-section {
    padding: 56px 0;
  }

  .cta-section__heading {
    font-size: clamp(1.55rem, 7.5vw, 2.4rem);
  }

  .cta-section__desc {
    font-size: 0.93rem;
    margin-bottom: 36px;
  }

  /* フローを縦並びステップリストに */
  .cta-section__flow {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    margin-bottom: 36px;
  }

  .flow-step {
    flex-direction: row;
    align-items: flex-start;
    max-width: 100%;
    width: 100%;
    gap: 14px;
    padding: 14px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .flow-step:last-child {
    border-bottom: none;
  }

  .flow-step__num {
    width: 38px;
    height: 38px;
    font-size: 0.95rem;
    flex-shrink: 0;
  }

  .flow-step__title {
    font-size: 0.93rem;
    text-align: left;
    margin-bottom: 3px;
  }

  .flow-step__desc {
    font-size: 0.8rem;
    text-align: left;
  }

  .flow-arrow {
    display: none;
  }

  .btn--line.btn--xl {
    width: 100%;
    font-size: 1rem;
    padding: 20px 20px;
    border-radius: 16px;
  }

  /* ----- NOTE BANNER ----- */
  .note-banner__inner {
    flex-direction: column;
    text-align: center;
    padding: 24px 20px;
  }

  .note-banner__content h3 {
    justify-content: center;
  }

  .note-banner__actions {
    width: 100%;
    flex-direction: column;
    gap: 12px;
  }

  .btn--note,
  .btn--ig {
    width: 100%;
  }

  /* ----- FOOTER ----- */
  .footer {
    padding: 44px 0 100px;
    /* 浮遊CTA分の余白 */
  }

  .footer__inner {
    flex-direction: column;
    gap: 20px;
    align-items: center;
    text-align: center;
  }

  .footer__logo-img {
    height: 50px;
  }

  .footer__nav ul {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px 20px;
  }

  .footer__bottom {
    flex-direction: column;
    text-align: center;
    gap: 10px;
  }

  .footer__links {
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
  }

  /* ----- MODAL ----- */
  .modal {
    padding: 14px;
    border-radius: 14px;
    width: 95%;
  }

  .modal__close {
    top: 12px;
    right: 12px;
  }
}

/* ----- スマホ小 (480px以下) ----- */
@media (max-width: 480px) {
  .container {
    padding: 0 14px;
  }

  section {
    padding: 48px 0;
  }

  .brand-image {
    padding-top: 56px;
  }

  .brand-image__img {
    height: 60vw;
    min-height: 200px;
    max-height: 300px;
  }

  .hero {
    padding: 40px 0 52px;
  }

  .hero__catch {
    font-size: clamp(1.45rem, 9.5vw, 2.1rem);
  }

  .hero__cta-group .btn {
    font-size: 0.92rem;
    padding: 16px 14px;
  }

  .badge {
    font-size: 0.74rem;
    padding: 6px 10px;
  }

  .harm__question-text {
    font-size: clamp(1.05rem, 7.5vw, 1.4rem);
  }

  .feature-item__text h3 {
    font-size: 0.97rem;
  }

  .teacher-card__avatar-inner {
    width: 76px;
    height: 76px;
    font-size: 1.8rem;
  }

  .teacher-card__avatar {
    width: 76px;
    height: 76px;
  }

  .cta-section__heading {
    font-size: clamp(1.35rem, 9vw, 1.9rem);
  }
}

/* ----- セーフエリア (iPhone ノッチ・Dynamic Island) ----- */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
  .floating-cta {
    padding-bottom: calc(18px + env(safe-area-inset-bottom));
  }

  @media (max-width: 768px) {
    .footer {
      padding-bottom: calc(100px + env(safe-area-inset-bottom));
    }
  }
}