/* ============================================
   ロジスト進学塾 一ノ割校 - スタイルシート
   カラー：白70%・濃紺25%・淡水色5%
   ============================================ */

/* ---- リセット・変数 ---- */
:root {
  --navy: #1a2e4a;
  --navy-light: #243d63;
  --navy-dark: #0f1e33;
  --blue-pale: #e8f0fb;
  --blue-pale2: #f0f5ff;
  --gray-bg: #f7f7f7;
  --gray-light: #eeeeee;
  --text: #1a1a1a;
  --text-mute: #555;
  --white: #ffffff;
  --line-green: #06C755;
  --font: 'Noto Sans JP', 'Hiragino Sans', 'Yu Gothic UI', 'Meiryo', sans-serif;
  --radius: 8px;
  --shadow: 0 2px 16px rgba(26, 46, 74, 0.08);
  --shadow-hover: 0 4px 24px rgba(26, 46, 74, 0.14);
  --header-h: 64px;
  --transition: 0.2s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font);
  color: var(--text);
  background: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

/* ---- コンテナ ---- */
.container {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- セクション ---- */
.section {
  padding: 80px 0;
}
.section-alt {
  background: var(--gray-bg);
}
.section-title {
  font-size: clamp(22px, 4vw, 30px);
  font-weight: 900;
  color: var(--navy);
  text-align: center;
  margin-bottom: 48px;
  letter-spacing: -0.01em;
}
.section-title::after {
  content: '';
  display: block;
  width: 40px;
  height: 3px;
  background: var(--navy);
  margin: 12px auto 0;
  border-radius: 2px;
}
.section-lead {
  text-align: center;
  color: var(--text-mute);
  max-width: 680px;
  margin: -24px auto 40px;
  font-size: 15px;
}

/* ============================================
   ヘッダー
   ============================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: var(--white);
  border-bottom: 1px solid var(--gray-light);
  z-index: 900;
  transition: box-shadow var(--transition);
}
.site-header.scrolled {
  box-shadow: 0 2px 12px rgba(0,0,0,.06);
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.header-logo {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  flex-shrink: 0;
}
.logo-main {
  font-size: 18px;
  font-weight: 900;
  color: var(--navy);
  letter-spacing: -0.02em;
}
.logo-sub {
  font-size: 11px;
  color: var(--text-mute);
  font-weight: 500;
}
.header-nav ul {
  display: flex;
  align-items: center;
  gap: 2px;
}
.header-nav ul li a {
  display: block;
  padding: 6px 12px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-mute);
  border-radius: 4px;
  transition: color var(--transition), background var(--transition);
}
.header-nav ul li a:hover {
  color: var(--navy);
  background: var(--blue-pale2);
}
.btn-line-header {
  background: var(--navy) !important;
  color: var(--white) !important;
  padding: 8px 16px !important;
  border-radius: 4px !important;
  font-weight: 700 !important;
  font-size: 13px !important;
}
.btn-line-header:hover {
  background: var(--navy-light) !important;
  color: var(--white) !important;
}

/* ハンバーガー */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  border-radius: 4px;
}
.hamburger span {
  display: block;
  height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: all 0.25s;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* モバイルメニュー */
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--header-h);
  left: 0; right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--gray-light);
  z-index: 800;
  transform: translateY(-100%);
  transition: transform 0.3s ease;
  padding: 12px 0 24px;
}
.mobile-menu.open {
  transform: translateY(0);
}
.mobile-menu ul { display: flex; flex-direction: column; }
.mobile-menu ul li a {
  display: block;
  padding: 14px 24px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  border-bottom: 1px solid var(--gray-light);
}
.mobile-line-item {
  padding: 16px 24px 0;
}
.btn-line-mobile {
  display: block;
  text-align: center;
  background: var(--navy);
  color: var(--white) !important;
  padding: 14px 24px;
  border-radius: 6px;
  font-weight: 700;
  font-size: 15px;
  border-bottom: none !important;
}
.mobile-menu-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.3);
  z-index: 700;
}
.mobile-menu-overlay.open { display: block; }

/* ============================================
   ヒーロー
   ============================================ */
.hero {
  padding-top: calc(var(--header-h) + 60px);
  padding-bottom: 80px;
}
.hero-inner {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero-label {
  font-size: 13px;
  color: var(--text-mute);
  font-weight: 500;
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}
.hero-title {
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 900;
  color: var(--navy);
  line-height: 1.4;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}
.hero-title span {
  color: var(--navy);
}
.hero-desc {
  font-size: 15px;
  color: var(--text-mute);
  line-height: 1.8;
  margin-bottom: 32px;
}
.btn-line-hero {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--navy);
  color: var(--white);
  font-size: 16px;
  font-weight: 700;
  padding: 16px 32px;
  border-radius: 6px;
  transition: background var(--transition), transform var(--transition);
}
.btn-line-hero:hover {
  background: var(--navy-light);
  transform: translateY(-1px);
}
.btn-line-hero::before {
  content: '';
  display: block;
  width: 22px;
  height: 22px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm-1 14H9V8h2v8zm4 0h-2V8h2v8z'/%3E%3C/svg%3E") center/contain no-repeat;
}
.hero-image img {
  border-radius: var(--radius);
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 4/3;
  box-shadow: var(--shadow);
}

/* ============================================
   強み
   ============================================ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}
.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}
.feature-num {
  font-size: 36px;
  font-weight: 900;
  color: var(--blue-pale);
  line-height: 1;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}
.feature-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 12px;
  line-height: 1.4;
}
.feature-card p {
  font-size: 14px;
  color: var(--text-mute);
  line-height: 1.75;
}

/* ============================================
   コース
   ============================================ */
.course-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 40px;
  margin-bottom: 32px;
  box-shadow: var(--shadow);
}
.course-card:last-child { margin-bottom: 0; }
.course-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 4px;
  background: var(--blue-pale);
  color: var(--navy);
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}
.course-card h3 {
  font-size: clamp(18px, 3vw, 22px);
  font-weight: 900;
  color: var(--navy);
  margin-bottom: 16px;
  line-height: 1.4;
}
.course-desc {
  font-size: 15px;
  color: var(--text-mute);
  line-height: 1.8;
  margin-bottom: 28px;
  white-space: pre-line;
}
.course-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  border-top: 1px solid var(--gray-light);
  padding-top: 24px;
}
.course-time h4, .course-price h4 {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text-mute);
  margin-bottom: 8px;
  text-transform: uppercase;
}
.course-time p {
  font-size: 14px;
  color: var(--text);
  line-height: 1.7;
}
.price-normal {
  font-size: 14px;
  color: var(--text-mute);
  text-decoration: line-through;
  margin-bottom: 6px;
}
.price-campaign {
  font-size: 22px;
  font-weight: 900;
  color: var(--navy);
  line-height: 1.2;
}
.price-note {
  font-size: 12px;
  color: var(--text-mute);
  margin-top: 8px;
  line-height: 1.6;
}
.course-campaign-badge {
  display: inline-block;
  background: var(--navy);
  color: var(--white);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 8px;
}

/* 総合型選抜コード */
.course-card.aoiform {
  border: 2px solid var(--navy);
}
.aoiform-badge {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--navy);
  color: var(--white);
  padding: 14px 24px;
  border-radius: 6px;
  margin: 20px 0 0;
  font-weight: 700;
  font-size: 15px;
}
.aoiform-badge span {
  font-size: 12px;
  font-weight: 400;
  color: rgba(255,255,255,.75);
}

/* ============================================
   代表
   ============================================ */
.principal-inner {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 60px;
  align-items: start;
}
.principal-photo img {
  border-radius: var(--radius);
  width: 100%;
  aspect-ratio: 1/1;
  object-fit: cover;
  object-position: center top;
  box-shadow: var(--shadow);
}
.principal-role {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--text-mute);
  margin-bottom: 4px;
  text-transform: uppercase;
}
.principal-name {
  font-size: 30px;
  font-weight: 900;
  color: var(--navy);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}
.principal-profile {
  margin-bottom: 24px;
}
.principal-profile li {
  font-size: 14px;
  color: var(--text-mute);
  padding: 5px 0;
  border-bottom: 1px solid var(--gray-light);
  padding-left: 14px;
  position: relative;
}
.principal-profile li::before {
  content: '─';
  position: absolute;
  left: 0;
  color: var(--navy);
  font-size: 10px;
  top: 7px;
}
.principal-message p {
  font-size: 15px;
  color: var(--text);
  line-height: 1.8;
  margin-bottom: 12px;
}
.principal-message blockquote {
  border-left: 3px solid var(--navy);
  padding: 12px 20px;
  margin: 16px 0;
  background: var(--blue-pale2);
  border-radius: 0 4px 4px 0;
  font-weight: 700;
  color: var(--navy);
  font-size: 15px;
  line-height: 2;
}

/* ============================================
   合格実績
   ============================================ */
.achievements-tabs {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-bottom: 32px;
}
.ach-tab {
  padding: 8px 24px;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  border: 2px solid var(--navy);
  background: var(--white);
  color: var(--navy);
  transition: all var(--transition);
}
.ach-tab.active, .ach-tab:hover {
  background: var(--navy);
  color: var(--white);
}
.ach-panel {
  display: none;
}
.ach-panel.active {
  display: block;
}
.ach-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}
.ach-item {
  font-size: 14px;
  color: var(--text);
  padding: 8px 16px;
  background: var(--white);
  border: 1px solid var(--gray-light);
  border-radius: 4px;
}
.ach-more {
  text-align: center;
  font-size: 14px;
  color: var(--text-mute);
  margin-top: 16px;
}

/* ============================================
   口コミ
   ============================================ */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.review-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  border-top: 4px solid var(--navy);
}
.review-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 16px;
  line-height: 1.4;
}
.review-body {
  font-size: 14px;
  color: var(--text-mute);
  line-height: 1.8;
  white-space: pre-line;
}
.review-body-inner {
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.review-toggle {
  margin-top: 10px;
  font-size: 13px;
  color: var(--navy);
  cursor: pointer;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: none;
  border: none;
  padding: 4px 0;
}

/* ============================================
   YouTube
   ============================================ */
.youtube-wrap {
  max-width: 720px;
  margin: 0 auto;
}
.youtube-embed {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.youtube-embed iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
}

/* ============================================
   教室環境
   ============================================ */
.env-gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 32px;
}
.env-photo img {
  border-radius: var(--radius);
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  box-shadow: var(--shadow);
}
.env-photo p {
  text-align: center;
  font-size: 13px;
  color: var(--text-mute);
  margin-top: 10px;
}

/* ============================================
   時間割
   ============================================ */
.tt-tabs {
  display: flex;
  gap: 6px;
  justify-content: center;
  margin-bottom: 28px;
  flex-wrap: wrap;
}
.tt-tab {
  padding: 8px 20px;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  border: 2px solid var(--navy);
  background: var(--white);
  color: var(--navy);
  transition: all var(--transition);
  min-width: 56px;
}
.tt-tab.active, .tt-tab:hover {
  background: var(--navy);
  color: var(--white);
}
.tt-panel { display: none; }
.tt-panel.active { display: block; }
.tt-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 640px;
  margin: 0 auto;
}
.tt-item {
  display: grid;
  grid-template-columns: 100px 1fr auto;
  gap: 16px;
  background: var(--white);
  border-radius: var(--radius);
  padding: 14px 20px;
  align-items: center;
  box-shadow: 0 1px 6px rgba(0,0,0,.06);
}
.tt-time {
  font-size: 15px;
  font-weight: 700;
  color: var(--navy);
}
.tt-info h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
}
.tt-info p {
  font-size: 12px;
  color: var(--text-mute);
  margin-top: 2px;
}
.tt-subject {
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
  background: var(--blue-pale2);
  color: var(--navy);
  border-radius: 4px;
}

/* 季節講習 */
.seasonal-section {
  padding: 60px 0;
}
.seasonal-section .section-title { text-align: left; }
.seasonal-section .section-title::after { margin-left: 0; }
.seasonal-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.seasonal-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  cursor: pointer;
}
.seasonal-card img {
  width: 100%;
  aspect-ratio: 3/2;
  object-fit: cover;
  transition: transform 0.3s;
}
.seasonal-card:hover img { transform: scale(1.02); }
.seasonal-card-body {
  padding: 16px 20px;
}
.seasonal-card-body h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--navy);
}
.seasonal-card-body p {
  font-size: 13px;
  color: var(--text-mute);
  margin-top: 4px;
}

/* 画像ライトボックス */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.85);
  z-index: 9999;
  align-items: center;
  justify-content: center;
}
.lightbox.open { display: flex; }
.lightbox img {
  max-width: 90vw;
  max-height: 90vh;
  border-radius: 4px;
}
.lightbox-close {
  position: absolute;
  top: 20px; right: 24px;
  color: var(--white);
  font-size: 32px;
  cursor: pointer;
  background: none;
  border: none;
  line-height: 1;
}

/* ============================================
   アクセス
   ============================================ */
.access-inner {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 48px;
  align-items: start;
}
.access-info h3 {
  font-size: 18px;
  font-weight: 900;
  color: var(--navy);
  margin-bottom: 16px;
}
.access-info dl {
  display: grid;
  gap: 12px;
}
.access-info dt {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text-mute);
  text-transform: uppercase;
}
.access-info dd {
  font-size: 14px;
  color: var(--text);
  margin-top: 2px;
}
.access-map {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.access-map iframe {
  width: 100%;
  height: 360px;
  display: block;
  border: 0;
}

/* ============================================
   最終CTA
   ============================================ */
.final-cta {
  background: var(--navy);
}
.final-cta .section-title { color: var(--white); }
.final-cta .section-title::after { background: rgba(255,255,255,.4); }
.final-cta-inner {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}
.final-cta-inner h2 {
  font-size: clamp(22px, 4vw, 30px);
  font-weight: 900;
  color: var(--white);
  margin-bottom: 24px;
  line-height: 1.5;
}
.final-cta-inner p {
  font-size: 15px;
  color: rgba(255,255,255,.8);
  line-height: 1.8;
  margin-bottom: 12px;
}
.cta-subtext {
  color: rgba(255,255,255,.65) !important;
  font-size: 14px !important;
  margin-bottom: 32px !important;
}
.btn-line-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--white);
  color: var(--navy);
  font-size: 17px;
  font-weight: 900;
  padding: 18px 40px;
  border-radius: 6px;
  transition: transform var(--transition), box-shadow var(--transition);
}
.btn-line-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,.2);
}

/* ============================================
   フッター
   ============================================ */
.site-footer {
  background: var(--navy-dark);
  padding: 48px 0 32px;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 32px;
  margin-bottom: 32px;
}
.footer-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
}
.footer-inner p {
  font-size: 13px;
  color: rgba(255,255,255,.5);
}
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  justify-content: flex-end;
}
.footer-nav a {
  font-size: 13px;
  color: rgba(255,255,255,.6);
  padding: 4px 10px;
  border-radius: 4px;
  transition: color var(--transition);
}
.footer-nav a:hover { color: var(--white); }
.footer-copy {
  font-size: 12px;
  color: rgba(255,255,255,.35);
  text-align: center;
  border-top: 1px solid rgba(255,255,255,.08);
  padding-top: 24px;
}

/* ============================================
   スマートフォン固定CTA
   ============================================ */
.sp-fixed-cta {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: var(--white);
  padding: 12px 16px;
  box-shadow: 0 -4px 16px rgba(0,0,0,.1);
  z-index: 800;
}
.btn-line-fixed {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--navy);
  color: var(--white);
  font-size: 16px;
  font-weight: 700;
  padding: 14px;
  border-radius: 6px;
  width: 100%;
}

/* ============================================
   アニメーション
   ============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .fade-in { opacity: 1; transform: none; transition: none; }
}

/* ローディング */
.loading-placeholder {
  text-align: center;
  color: var(--text-mute);
  padding: 40px;
  font-size: 14px;
}

/* ============================================
   レスポンシブ
   ============================================ */
@media (max-width: 1024px) {
  .principal-inner {
    grid-template-columns: 260px 1fr;
    gap: 40px;
  }
  .access-inner {
    grid-template-columns: 260px 1fr;
  }
}

@media (max-width: 768px) {
  :root { --header-h: 56px; }

  .header-nav { display: none; }
  .hamburger { display: flex; }
  .mobile-menu { display: block; }

  .section { padding: 60px 0; }
  .section-title { margin-bottom: 32px; }

  /* ヒーロー - SP縦並び */
  .hero {
    padding-top: calc(var(--header-h) + 32px);
    padding-bottom: 56px;
  }
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .hero-image { order: 1; }
  .hero-text { order: 0; }
  .hero-title { font-size: 24px; }
  .hero-desc { font-size: 14px; }
  .btn-line-hero { width: 100%; justify-content: center; font-size: 15px; padding: 14px 24px; }

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

  /* コース */
  .course-card { padding: 28px 20px; }
  .course-detail { grid-template-columns: 1fr; gap: 16px; }

  /* 代表 */
  .principal-inner { grid-template-columns: 1fr; gap: 28px; }
  .principal-photo img { max-width: 240px; margin: 0 auto; }

  /* 口コミ */
  .reviews-grid { grid-template-columns: 1fr; }

  /* 教室 */
  .env-gallery { grid-template-columns: 1fr; }

  /* アクセス */
  .access-inner { grid-template-columns: 1fr; gap: 28px; }
  .access-map iframe { height: 280px; }

  /* フッター */
  .footer-inner { flex-direction: column; gap: 20px; }
  .footer-nav { justify-content: flex-start; }

  /* SP固定CTA */
  .sp-fixed-cta { display: block; }
  body { padding-bottom: 72px; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero-title { font-size: 22px; }
  .course-card { padding: 24px 16px; }
  .tt-tab { min-width: 44px; padding: 7px 14px; font-size: 13px; }
  .tt-item { grid-template-columns: 90px 1fr; }
  .tt-subject { display: none; }
}