/* ====================================================
   電気試験勉強会 - Redesign CSS
   モダン・プロフェッショナルなデザイン
==================================================== */

/* ---- CSS Variables ---- */
:root {
  --color-primary:     #f59e0b;   /* アンバー/電気イエロー */
  --color-primary-dark:#d97706;
  --color-accent:      #ef4444;   /* アクセントレッド */
  --color-dark:        #0f172a;   /* ネイビーブラック */
  --color-dark-2:      #1e293b;
  --color-dark-3:      #334155;
  --color-light:       #f8fafc;
  --color-text:        #1e293b;
  --color-text-muted:  #64748b;
  --color-border:      #e2e8f0;
  --color-white:       #ffffff;

  --font-jp: 'Noto Sans JP', sans-serif;
  --font-en: 'Inter', sans-serif;

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;

  --shadow-sm:  0 1px 3px rgba(0,0,0,.12), 0 1px 2px rgba(0,0,0,.08);
  --shadow-md:  0 4px 16px rgba(0,0,0,.12), 0 2px 6px rgba(0,0,0,.08);
  --shadow-lg:  0 10px 40px rgba(0,0,0,.15), 0 4px 12px rgba(0,0,0,.1);
  --shadow-glow:0 0 40px rgba(245,158,11,.25);

  --header-h: 72px;

  --transition: .3s cubic-bezier(.4,0,.2,1);
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

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

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

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

ul { list-style: none; }

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--color-dark-2); }
::-webkit-scrollbar-thumb { background: var(--color-primary); border-radius: 3px; }

/* ---- Container ---- */
.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-size: .95rem;
  font-weight: 700;
  font-family: var(--font-jp);
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-dark);
  border-color: var(--color-primary);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,.5);
}
.btn-outline:hover {
  background: rgba(255,255,255,.1);
  border-color: var(--color-white);
  transform: translateY(-2px);
}

.btn-block { width: 100%; justify-content: center; }
.btn-lg { padding: 18px 36px; font-size: 1.05rem; }

/* ---- Animations ---- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(-2deg); }
  50%       { transform: translateY(-12px) rotate(-2deg); }
}

@keyframes pulse-border {
  0%, 100% { box-shadow: 0 0 0 0 rgba(245,158,11,.6); }
  50%       { box-shadow: 0 0 0 10px rgba(245,158,11,0); }
}

.animate-fade-up {
  opacity: 0;
  animation: fadeUp .7s ease forwards;
}

/* ---- Section Commons ---- */
.section { padding: 96px 0; }

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-tag {
  display: inline-block;
  padding: 6px 18px;
  background: rgba(245,158,11,.12);
  color: var(--color-primary-dark);
  border: 1px solid rgba(245,158,11,.3);
  border-radius: 100px;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(1.6rem, 3.5vw, 2.25rem);
  font-weight: 900;
  line-height: 1.35;
  color: var(--color-dark);
  margin-bottom: 16px;
}

.section-desc {
  max-width: 600px;
  margin: 0 auto;
  color: var(--color-text-muted);
  font-size: 1rem;
}

.gradient-text {
  background: linear-gradient(135deg, var(--color-primary), #f97316);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-accent { color: var(--color-accent); font-weight: 700; }
.text-warn   { color: var(--color-accent); }

/* ============================================================
   HEADER
============================================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition), backdrop-filter var(--transition);
}

.site-header.scrolled {
  background: rgba(15,23,42,.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 rgba(255,255,255,.06);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  font-size: 1.15rem;
  color: var(--color-white);
  flex-shrink: 0;
}
.logo-icon {
  width: 36px; height: 36px;
  background: var(--color-primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-dark);
  font-size: .9rem;
}
.logo-text { color: var(--color-white); }
.logo-accent { color: var(--color-primary); }

/* Nav */
.main-nav { flex: 1; display: flex; justify-content: flex-end; }

.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-wrap: nowrap;
}

.nav-link {
  padding: 6px 9px;
  font-size: .78rem;
  font-weight: 500;
  color: rgba(255,255,255,.8);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  white-space: nowrap;
}
.nav-link:hover {
  color: var(--color-primary);
  background: rgba(245,158,11,.1);
}

.nav-cta {
  background: var(--color-primary);
  color: var(--color-dark) !important;
  font-weight: 700;
  padding: 7px 14px;
  white-space: nowrap;
}
.nav-cta:hover {
  background: var(--color-primary-dark);
  color: var(--color-dark) !important;
}

.nav-link.active {
  color: var(--color-primary);
  background: rgba(245,158,11,.08);
}

/* Hamburger */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
}
.menu-toggle span {
  display: block;
  width: 100%; height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: var(--transition);
}
.menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   HERO
============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f2040 100%);
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: var(--header-h);
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(245,158,11,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(245,158,11,.04) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero-glow {
  position: absolute;
  width: 600px; height: 600px;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
}
.hero-glow--left  { top: -200px; left: -200px;  background: rgba(245,158,11,.12); }
.hero-glow--right { bottom: -200px; right: -100px; background: rgba(59,130,246,.08); }

.hero-content {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding-top: 40px;
  padding-bottom: 80px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(245,158,11,.15);
  border: 1px solid rgba(245,158,11,.35);
  border-radius: 100px;
  color: var(--color-primary);
  font-size: .85rem;
  font-weight: 700;
  margin-bottom: 20px;
  grid-column: 1;
}

.hero-title {
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 900;
  line-height: 1.25;
  color: var(--color-white);
  margin-bottom: 20px;
  grid-column: 1;
}

.hero-sub {
  font-size: 1.1rem;
  color: rgba(255,255,255,.75);
  margin-bottom: 32px;
  grid-column: 1;
  line-height: 1.8;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 36px;
  grid-column: 1;
}

.stat-item { text-align: center; }
.stat-num {
  display: block;
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--color-primary);
  font-family: var(--font-en);
  line-height: 1.1;
}
.stat-num small { font-size: .75rem; }
.stat-label {
  font-size: .75rem;
  color: rgba(255,255,255,.5);
  margin-top: 2px;
  display: block;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,.15);
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  grid-column: 1;
}

/* Hero image */
.hero-image-wrap {
  grid-column: 2;
  grid-row: 1 / 7;
  position: relative;
  border-radius: var(--radius-lg);
  overflow: visible;
}

.hero-img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 3px solid rgba(245,158,11,.2);
  animation: float 6s ease-in-out infinite;
}

.hero-img-badge {
  position: absolute;
  bottom: -18px;
  right: -18px;
  background: var(--color-primary);
  color: var(--color-dark);
  padding: 14px 18px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .8rem;
  font-weight: 900;
  line-height: 1.35;
  box-shadow: var(--shadow-md);
  animation: pulse-border 2.5s ease infinite;
}
.hero-img-badge i { font-size: 1.5rem; }

/* Scroll hint */
.hero-scroll-hint {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: rgba(255,255,255,.4);
  font-size: .7rem;
  letter-spacing: .1em;
  animation: fadeUp 1s ease forwards 1s;
  opacity: 0;
}
.hero-scroll-hint i { animation: float 1.5s ease-in-out infinite; font-size: .8rem; }

/* ============================================================
   REASON STRIP
============================================================ */
.reason-strip {
  background: var(--color-dark);
  padding: 72px 0;
}

.reason-headline {
  text-align: center;
  margin-bottom: 48px;
}

.tag-label {
  display: inline-block;
  padding: 10px 24px;
  background: rgba(245,158,11,.15);
  border: 1px solid rgba(245,158,11,.3);
  border-radius: 100px;
  color: var(--color-primary);
  font-size: 1rem;
  font-weight: 700;
}

.reason-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.reason-card {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  text-align: center;
  transition: var(--transition);
}
.reason-card:hover {
  background: rgba(245,158,11,.08);
  border-color: rgba(245,158,11,.25);
  transform: translateY(-4px);
}

.reason-icon {
  width: 56px; height: 56px;
  background: rgba(245,158,11,.15);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--color-primary);
  margin: 0 auto 16px;
}

.reason-card h3 {
  font-size: .95rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 10px;
}
.reason-card p {
  font-size: .82rem;
  color: rgba(255,255,255,.55);
  line-height: 1.7;
}

/* ============================================================
   FEATURES
============================================================ */
.features-section { background: var(--color-light); }

.features-grid {
  display: flex;
  flex-direction: column;
  gap: 48px;
  margin-bottom: 56px;
}

.feature-card {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 40px;
  align-items: center;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}
.feature-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.feature-card--reverse { grid-template-columns: 1.5fr 1fr; }
.feature-card--reverse .feature-img-wrap { order: 2; }
.feature-card--reverse .feature-body    { order: 1; padding: 40px; }

.feature-img-wrap {
  height: 280px;
  overflow: hidden;
  flex-shrink: 0;
}
.feature-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.feature-card:hover .feature-img-wrap img { transform: scale(1.04); }

.feature-img--accent {
  background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-2) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.feature-icon-large {
  font-size: 5rem;
  color: rgba(245,158,11,.3);
}
.revenge-svg {
  width: 100%;
  max-width: 300px;
  height: auto;
  filter: drop-shadow(0 4px 24px rgba(245,158,11,0.15));
}

.feature-body { padding: 40px; }

.feature-num {
  display: block;
  font-size: .75rem;
  font-weight: 900;
  color: var(--color-primary);
  letter-spacing: .2em;
  margin-bottom: 10px;
  font-family: var(--font-en);
}

.feature-body h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-dark);
  line-height: 1.45;
  margin-bottom: 14px;
}

.feature-body p {
  color: var(--color-text-muted);
  font-size: .92rem;
  line-height: 1.8;
}

/* Points Box */
.points-box {
  background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-2) 100%);
  border-radius: var(--radius-lg);
  padding: 40px 48px;
  border: 1px solid rgba(245,158,11,.15);
}

.points-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.points-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 32px;
}

.points-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: .9rem;
  color: rgba(255,255,255,.8);
  line-height: 1.6;
}
.points-list li .fa-check-circle { color: var(--color-primary); margin-top: 3px; flex-shrink: 0; }

/* ============================================================
   SCHEDULE
============================================================ */
.schedule-section {
  background: linear-gradient(180deg, #0f172a 0%, #1a2540 100%);
  position: relative;
  overflow: hidden;
}
.schedule-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(245,158,11,.5), transparent);
}
.schedule-section .section-tag { background: rgba(245,158,11,.15); }
.schedule-section .section-title { color: var(--color-white); }

.schedule-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 32px;
  justify-content: center;
}

.schedule-card {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}
.schedule-card:hover {
  border-color: rgba(245,158,11,.4);
  box-shadow: 0 0 40px rgba(245,158,11,.1);
}

.schedule-card-header {
  background: rgba(245,158,11,.12);
  border-bottom: 1px solid rgba(245,158,11,.2);
  padding: 18px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.schedule-venue-tag {
  font-weight: 700;
  font-size: .95rem;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.schedule-status {
  padding: 4px 14px;
  background: var(--color-accent);
  color: white;
  border-radius: 100px;
  font-size: .75rem;
  font-weight: 700;
  animation: pulse-border 2s ease infinite;
}

.schedule-body { padding: 28px; }

.schedule-period {
  font-weight: 700;
  color: var(--color-white);
  font-size: .95rem;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}

.schedule-table { width: 100%; border-collapse: collapse; }
.schedule-table tr { border-bottom: 1px solid rgba(255,255,255,.06); }
.schedule-table tr:last-child { border-bottom: none; }

.schedule-table th, .schedule-table td {
  padding: 12px 0;
  font-size: .88rem;
  vertical-align: top;
}
.schedule-table th {
  color: var(--color-primary);
  font-weight: 700;
  white-space: nowrap;
  width: 90px;
  display: flex;
  align-items: flex-start;
  gap: 6px;
  padding-top: 13px;
}
.schedule-table td { color: rgba(255,255,255,.8); }
.schedule-table td small { display: block; color: rgba(255,255,255,.45); font-size: .78rem; margin-top: 2px; }

.price {
  font-size: 1.5rem;
  color: var(--color-primary);
  font-family: var(--font-en);
  font-weight: 900;
}

.schedule-card-footer {
  padding: 20px 28px 28px;
  border-top: 1px solid rgba(255,255,255,.06);
}

.schedule-note {
  text-align: center;
  margin-top: 12px;
  font-size: .78rem;
  color: rgba(255,255,255,.4);
}

/* ============================================================
   STATS
============================================================ */
.stats-section { background: var(--color-white); }

.stats-highlight {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 56px;
}

.stat-box {
  background: var(--color-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  transition: var(--transition);
}
.stat-box:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.stat-box--accent {
  background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-2) 100%);
  border-color: rgba(245,158,11,.2);
}
.stat-box--accent .stat-box-num  { color: var(--color-primary); }
.stat-box--accent .stat-box-label{ color: rgba(255,255,255,.6); }

.stat-box-icon {
  font-size: 1.8rem;
  color: var(--color-primary);
  margin-bottom: 12px;
}
.stat-box--accent .stat-box-icon { color: var(--color-primary); }

.stat-box-num {
  font-size: 2rem;
  font-weight: 900;
  color: var(--color-dark);
  font-family: var(--font-en);
  line-height: 1.1;
  margin-bottom: 8px;
}
.stat-box-num span { font-size: 1rem; }
.stat-box-label {
  font-size: .85rem;
  color: var(--color-text-muted);
  font-weight: 600;
}

.stats-img-wrap {
  background: var(--color-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  cursor: zoom-in;
}
.stats-img-wrap img { width: 100%; transition: transform .5s ease; }
.stats-img-wrap:hover img { transform: scale(1.02); }

/* ---- 合格率テーブル ---- */
.stats-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
}
.stats-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .88rem;
  background: var(--color-white);
  min-width: 620px;
}
.stats-table caption {
  font-size: .78rem;
  color: var(--color-text-muted);
  padding: 10px 16px;
  text-align: left;
  background: var(--color-light);
  border-bottom: 1px solid var(--color-border);
}
.stats-table thead tr:first-child th {
  background: var(--color-dark);
  color: var(--color-white);
  padding: 12px 14px;
  text-align: center;
  font-weight: 700;
  font-size: .85rem;
}
.stats-table thead tr:last-child th {
  background: var(--color-dark-2);
  color: rgba(255,255,255,.8);
  padding: 8px 14px;
  text-align: center;
  font-size: .8rem;
  font-weight: 600;
  border-bottom: 2px solid var(--color-primary);
}
.stats-table tbody tr {
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition);
}
.stats-table tbody tr:hover { background: #fffbeb; }
.stats-table tbody td {
  padding: 12px 14px;
  text-align: right;
  color: var(--color-text);
  font-variant-numeric: tabular-nums;
}
.stats-table .td-year {
  text-align: left;
  font-weight: 700;
  color: var(--color-dark);
  white-space: nowrap;
  background: var(--color-light);
  border-right: 2px solid var(--color-border);
}
.stats-table .td-rate {
  font-weight: 700;
  color: var(--color-primary-dark);
}
.stats-table .td-note {
  font-size: .72rem;
  color: var(--color-text-muted);
  font-weight: 400;
}
.stats-table .tr-latest td {
  background: #fffdf0;
}
.stats-table .tr-latest .td-year {
  background: #fef9c3;
  color: var(--color-dark);
}
.stats-table .td-tbd {
  text-align: center;
  color: var(--color-text-muted);
  font-size: .8rem;
  line-height: 1.6;
  font-style: italic;
}

.img-note {
  text-align: center;
  padding: 12px 16px;
  font-size: .78rem;
  color: var(--color-text-muted);
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
}

/* ============================================================
   FAQ
============================================================ */
.faq-section { background: var(--color-light); }

.faq-list {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: var(--color-primary); }
.faq-item[open] { border-color: var(--color-primary); box-shadow: var(--shadow-sm); }

.faq-q {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 24px;
  font-weight: 700;
  font-size: .95rem;
  color: var(--color-dark);
  cursor: pointer;
  list-style: none;
  transition: background var(--transition);
}
.faq-q::-webkit-details-marker { display: none; }
.faq-q:hover { background: rgba(245,158,11,.05); }
.faq-q i { color: var(--color-primary); font-size: 1.1rem; flex-shrink: 0; }
.faq-item[open] .faq-q { background: rgba(245,158,11,.08); }

.faq-a {
  padding: 0 24px 20px 52px;
  font-size: .9rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}

/* ============================================================
   CONTACT
============================================================ */
.contact-section {
  background: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
}
.contact-section .section-tag { background: rgba(245,158,11,.15); }
.contact-section .section-title { color: var(--color-white); }
.contact-section .section-desc  { color: rgba(255,255,255,.5); }

/* 申込ボタンエリア */
.apply-btn-wrap {
  text-align: center;
  margin-bottom: 32px;
}
.apply-btn-wrap .btn {
  font-size: 1.1rem;
  padding: 20px 48px;
  box-shadow: 0 0 40px rgba(245,158,11,.35);
}
.apply-btn-wrap .btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 60px rgba(245,158,11,.5);
}
.apply-btn-note {
  margin-top: 10px;
  font-size: .8rem;
  color: rgba(255,255,255,.35);
}

/* 区切り線 */
.contact-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 36px;
  color: rgba(255,255,255,.3);
  font-size: .85rem;
}
.contact-divider::before,
.contact-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: rgba(255,255,255,.12);
}

.contact-wrap {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 40px;
  align-items: start;
}

.contact-form {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-lg);
  padding: 36px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.form-group label {
  font-size: .85rem;
  font-weight: 600;
  color: rgba(255,255,255,.7);
  display: flex;
  align-items: center;
  gap: 8px;
}

.required {
  font-size: .7rem;
  background: var(--color-accent);
  color: white;
  padding: 2px 7px;
  border-radius: 4px;
}

.form-group input,
.form-group select,
.form-group textarea {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-sm);
  padding: 13px 16px;
  color: var(--color-white);
  font-family: var(--font-jp);
  font-size: .9rem;
  transition: border-color var(--transition), background var(--transition);
  outline: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(255,255,255,.25); }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  background: rgba(255,255,255,.09);
}
.form-group select option { background: var(--color-dark-2); color: var(--color-white); }
.form-group textarea { resize: vertical; min-height: 120px; }

/* フィールドエラー状態 */
.field-error {
  border-color: var(--color-accent) !important;
  background: rgba(239,68,68,.06) !important;
  animation: shake .35s ease;
}
@keyframes shake {
  0%,100% { transform: translateX(0); }
  25%      { transform: translateX(-6px); }
  75%      { transform: translateX(6px); }
}

.form-feedback {
  margin-top: 14px;
  text-align: center;
  font-size: .88rem;
  min-height: 1.5em;
}
.form-feedback.success { color: #4ade80; }
.form-feedback.error   { color: var(--color-accent); }

/* Contact Info */
.contact-info {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.info-card {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.09);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  transition: var(--transition);
}
.info-card:hover {
  border-color: rgba(245,158,11,.3);
  background: rgba(245,158,11,.07);
}

.info-icon {
  width: 40px; height: 40px;
  background: rgba(245,158,11,.15);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 1rem;
  flex-shrink: 0;
}

.info-card strong {
  display: block;
  font-size: .85rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}
.info-card p {
  font-size: .82rem;
  color: rgba(255,255,255,.6);
  line-height: 1.6;
}
.info-card small { font-size: .75rem; color: rgba(255,255,255,.4); }

/* ============================================================
   FOOTER
============================================================ */
/* ---- 複線図バナー（トップページ内） ---- */
.futensen-banner {
  background: linear-gradient(90deg, var(--color-dark) 0%, #1a3050 60%, #0f2035 100%);
  border-top: 3px solid var(--color-primary);
  border-bottom: 3px solid var(--color-primary);
  padding: 20px 24px;
}
.futensen-banner-inner {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}
.futensen-banner-icon {
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--color-dark);
  flex-shrink: 0;
}
.futensen-banner-text {
  flex: 1;
  min-width: 200px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.futensen-banner-text strong {
  color: var(--color-primary);
  font-size: 1rem;
  font-weight: 800;
}
.futensen-banner-text span {
  color: rgba(255,255,255,.65);
  font-size: .87rem;
}
.futensen-banner-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 26px;
  background: var(--color-primary);
  color: var(--color-dark);
  font-weight: 800;
  border-radius: 100px;
  text-decoration: none;
  font-size: .9rem;
  white-space: nowrap;
  transition: background var(--transition), transform var(--transition);
}
.futensen-banner-btn:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
}

/* ---- ナビ 特別リンク（複線図） ---- */
.nav-link--special {
  color: var(--color-primary) !important;
  font-weight: 700 !important;
}
.nav-link--special i { margin-right: 3px; }

.site-footer {
  background: var(--color-dark);
  padding: 40px 0;
  border-top: 1px solid rgba(255,255,255,.06);
}

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

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  justify-content: center;
}

.footer-nav a {
  font-size: .82rem;
  color: rgba(255,255,255,.45);
  transition: color var(--transition);
}
.footer-nav a:hover { color: var(--color-primary); }

.footer-copy {
  font-size: .78rem;
  color: rgba(255,255,255,.25);
}

/* ============================================================
   欠陥の解説
============================================================ */
.defects-section { background: var(--color-dark); }
.defects-section .section-title { color: var(--color-white); }
.defects-section .section-desc  { color: rgba(255,255,255,.55); }

.defects-intro { margin-bottom: 40px; }

.defect-alert {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  background: rgba(239,68,68,.1);
  border: 1px solid rgba(239,68,68,.35);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-md);
  padding: 24px 28px;
}
.defect-alert i {
  font-size: 2rem;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 2px;
}
.defect-alert strong {
  display: block;
  font-size: 1.1rem;
  color: var(--color-accent);
  margin-bottom: 8px;
}
.defect-alert p {
  color: rgba(255,255,255,.7);
  font-size: .9rem;
  line-height: 1.7;
}

.defects-grid {
  display: grid;
  grid-template-columns: 1fr 1fr; /* デフォルト2列（シングル時は .defects-grid--single で上書き） */
  gap: 24px;
  margin-bottom: 40px;
}

.defect-card {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.defect-card-header {
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 14px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.defect-card--major .defect-card-header { background: rgba(239,68,68,.12); border-left: 4px solid var(--color-accent); }

.defect-badge {
  padding: 4px 14px;
  border-radius: 100px;
  font-size: .75rem;
  font-weight: 700;
}
.defect-badge--major { background: var(--color-accent); color: white; }

.defect-card-header h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-white);
}

.defect-list {
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.defect-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.defect-list li i {
  font-size: 1.1rem;
  flex-shrink: 0;
  margin-top: 2px;
}
.defect-card--major .defect-list li i { color: var(--color-accent); }

/* ---- 欠陥カード：シングル表示 ---- */
.defects-grid--single {
  grid-template-columns: 1fr;   /* 2列 → 1列に上書き */
  max-width: 860px;
  margin-left: auto;
  margin-right: auto;
}

/* defect-list を 2 列グリッドに */
.defect-list--grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px 40px;
  padding: 28px 32px;
}

@media (max-width: 768px) {
  .defect-list--grid {
    grid-template-columns: 1fr;
    padding: 20px 20px;
  }
}
.defect-list li strong {
  display: block;
  font-size: .9rem;
  color: var(--color-white);
  margin-bottom: 4px;
}
.defect-list li p {
  font-size: .82rem;
  color: rgba(255,255,255,.55);
  line-height: 1.65;
}

.defect-point-box {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  background: rgba(245,158,11,.08);
  border: 1px solid rgba(245,158,11,.25);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
}
.defect-point-icon {
  width: 52px; height: 52px;
  background: rgba(245,158,11,.2);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--color-primary);
  flex-shrink: 0;
}
.defect-point-box h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 10px;
}
.defect-point-box p {
  font-size: .88rem;
  color: rgba(255,255,255,.65);
  line-height: 1.8;
}

/* ============================================================
   技能試験内容
============================================================ */
.exam-section { background: var(--color-light); }

.exam-info-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 56px;
}

.exam-info-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  transition: var(--transition);
}
.exam-info-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.exam-info-icon {
  width: 52px; height: 52px;
  background: rgba(245,158,11,.12);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--color-primary);
  margin: 0 auto 14px;
}
.exam-info-card h4 {
  font-size: .82rem;
  font-weight: 700;
  color: var(--color-text-muted);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: .05em;
}
.exam-info-val {
  font-size: 1.9rem;
  font-weight: 900;
  color: var(--color-dark);
  font-family: var(--font-en);
  line-height: 1.1;
  margin-bottom: 6px;
}
.exam-info-val span { font-size: 1rem; font-family: var(--font-jp); }
.exam-info-note {
  font-size: .75rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.exam-flow {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  margin-bottom: 40px;
}
.exam-flow-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.exam-flow-title i { color: var(--color-primary); }

.exam-steps {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  flex-wrap: wrap;
}
.exam-step {
  flex: 1;
  min-width: 160px;
  background: var(--color-light);
  border-radius: var(--radius-md);
  padding: 20px;
  border: 1px solid var(--color-border);
}
.exam-step-num {
  font-size: .7rem;
  font-weight: 900;
  color: var(--color-primary);
  font-family: var(--font-en);
  letter-spacing: .15em;
  margin-bottom: 8px;
}
.exam-step h4 {
  font-size: .88rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 8px;
}
.exam-step p {
  font-size: .78rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}
.exam-step-arrow {
  display: flex;
  align-items: center;
  padding-top: 32px;
  color: var(--color-primary);
  font-size: .9rem;
  flex-shrink: 0;
}

.exam-problems {
  background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-2) 100%);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  border: 1px solid rgba(245,158,11,.15);
}
.exam-problems-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.exam-problems-desc {
  font-size: .88rem;
  color: rgba(255,255,255,.6);
  margin-bottom: 24px;
  line-height: 1.8;
}
.exam-problems-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.problem-tag {
  padding: 8px 16px;
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 100px;
  font-size: .8rem;
  color: rgba(255,255,255,.7);
  font-weight: 600;
  transition: var(--transition);
}
.problem-tag:hover {
  background: rgba(245,158,11,.15);
  border-color: rgba(245,158,11,.3);
  color: var(--color-primary);
}
.problem-tag--accent {
  background: rgba(245,158,11,.15);
  border-color: rgba(245,158,11,.35);
  color: var(--color-primary);
}

/* ============================================================
   工具の紹介
============================================================ */
.tools-section { background: var(--color-dark); }
.tools-section .section-title { color: var(--color-white); }
.tools-section .section-desc  { color: rgba(255,255,255,.55); }

.tools-notice {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: rgba(245,158,11,.08);
  border: 1px solid rgba(245,158,11,.25);
  border-radius: var(--radius-md);
  padding: 18px 24px;
  margin-bottom: 40px;
}
.tools-notice i { color: var(--color-primary); font-size: 1.2rem; margin-top: 2px; flex-shrink: 0; }
.tools-notice p { font-size: .88rem; color: rgba(255,255,255,.65); line-height: 1.7; }
.tools-notice strong { color: var(--color-primary); }

.tools-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 36px;
}

.tool-card {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.09);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  transition: var(--transition);
  position: relative;
}
.tool-card:hover {
  border-color: rgba(245,158,11,.35);
  background: rgba(245,158,11,.06);
  transform: translateY(-3px);
}
.tool-icon {
  width: 48px; height: 48px;
  background: rgba(245,158,11,.12);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--color-primary);
  margin-bottom: 14px;
}
.tool-card h4 {
  font-size: .95rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 8px;
}
.tool-card p {
  font-size: .8rem;
  color: rgba(255,255,255,.5);
  line-height: 1.65;
  margin-bottom: 12px;
}

/* ---- 工具詳細リスト ---- */
.tool-detail {
  list-style: none;
  padding: 0;
  margin: 0 0 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.tool-detail li {
  font-size: .8rem;
  color: rgba(255,255,255,.58);
  line-height: 1.65;
  padding-left: 0;
}
.tool-detail-label {
  display: inline-block;
  background: rgba(245,158,11,.18);
  color: var(--color-primary);
  font-size: .7rem;
  font-weight: 700;
  padding: 1px 7px;
  border-radius: 4px;
  margin-right: 6px;
  vertical-align: middle;
  white-space: nowrap;
  letter-spacing: .04em;
}
.tool-tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 4px;
  font-size: .7rem;
  font-weight: 700;
  background: rgba(245,158,11,.2);
  color: var(--color-primary);
}
.tool-tag--rec {
  background: rgba(59,130,246,.2);
  color: #60a5fa;
}
.tool-tag--pro {
  background: linear-gradient(135deg, rgba(245,158,11,.35), rgba(249,115,22,.35));
  color: #fbbf24;
  border: 1px solid rgba(245,158,11,.4);
}

/* ---- プロ推奨工具 フィーチャーカード ---- */
@keyframes shimmer {
  0%   { transform: translateX(-100%) skewX(-15deg); }
  100% { transform: translateX(250%) skewX(-15deg); }
}
@keyframes glow-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(245,158,11,.5), 0 8px 40px rgba(245,158,11,.2); }
  50%       { box-shadow: 0 0 0 6px rgba(245,158,11,0), 0 8px 60px rgba(245,158,11,.4); }
}

.tool-feature-card {
  position: relative;
  background: linear-gradient(135deg, #1a1000 0%, #0f172a 45%, #0d1a10 100%);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 36px;
  animation: glow-pulse 3s ease-in-out infinite;
}
/* 斜めシマーライン */
.tool-feature-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 60px; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(245,158,11,.15), transparent);
  animation: shimmer 3.5s ease-in-out infinite 1s;
  pointer-events: none;
}

/* ---- リボン帯 ---- */
.tool-feature-ribbon {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  background: linear-gradient(90deg, #b45309, var(--color-primary), #f97316, var(--color-primary), #b45309);
  background-size: 300% 100%;
  animation: shimmer-bg 4s linear infinite;
  padding: 10px 20px;
  text-align: center;
}
@keyframes shimmer-bg {
  0%   { background-position: 0% 50%; }
  100% { background-position: 300% 50%; }
}
.tool-feature-ribbon-text {
  font-size: .95rem;
  font-weight: 900;
  color: var(--color-dark);
  letter-spacing: .1em;
  white-space: nowrap;
}
.tool-feature-ribbon-stars {
  display: flex;
  gap: 4px;
  color: var(--color-dark);
  font-size: .75rem;
}

/* ---- 内部レイアウト ---- */
.tool-feature-inner {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 0;
}

/* ---- 画像エリア ---- */
.tool-feature-img-wrap {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: #ffffff;
  padding: 28px 20px 16px;
  min-height: 280px;
  overflow: hidden;
}
.tool-feature-img-glow {
  position: absolute;
  width: 180px; height: 180px;
  background: radial-gradient(circle, rgba(245,158,11,.25), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.tool-feature-img-wrap img {
  position: relative;
  width: 100%;
  max-width: 200px;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 6px 24px rgba(0,0,0,.22));
  transition: transform .4s ease;
  z-index: 1;
}
.tool-feature-card:hover .tool-feature-img-wrap img {
  transform: scale(1.06) translateY(-4px);
}
.tool-feature-img-label {
  position: relative;
  z-index: 1;
  margin-top: 10px;
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .12em;
  color: #b45309;
  text-transform: uppercase;
}

/* ---- テキストエリア ---- */
.tool-feature-body {
  padding: 24px 28px 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  border-left: 1px solid rgba(245,158,11,.2);
}

.tool-feature-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.tool-feature-brand {
  font-size: .75rem;
  font-weight: 700;
  color: rgba(255,255,255,.45);
  letter-spacing: .1em;
  text-transform: uppercase;
}

.tool-feature-name {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--color-white);
  line-height: 1.2;
  margin: 0;
}
.tool-feature-name span {
  color: var(--color-primary);
  font-size: 1.9rem;
}

.tool-feature-catch {
  font-size: .88rem;
  color: rgba(255,255,255,.6);
  line-height: 1.65;
  margin: 0;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(245,158,11,.18);
}
.tool-feature-catch strong {
  color: var(--color-primary);
}

/* ---- ポイントバッジ3連 ---- */
.tool-feature-points {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.tool-feature-point {
  flex: 1;
  min-width: 80px;
  background: rgba(245,158,11,.12);
  border: 1px solid rgba(245,158,11,.3);
  border-radius: var(--radius-sm);
  padding: 10px 8px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  transition: background var(--transition);
}
.tool-feature-point:hover {
  background: rgba(245,158,11,.22);
}
.tool-feature-point i {
  font-size: 1.1rem;
  color: var(--color-primary);
}
.tool-feature-point span {
  font-size: .72rem;
  font-weight: 700;
  color: rgba(255,255,255,.8);
  line-height: 1.4;
}

.tool-detail--feature {
  gap: 12px;
}
.tool-detail--feature li {
  color: rgba(255,255,255,.62);
  font-size: .82rem;
}

@media (max-width: 768px) {
  .tool-feature-inner {
    grid-template-columns: 1fr;
  }
  .tool-feature-img-wrap {
    min-height: 200px;
    padding: 20px;
    border-left: none;
    border-bottom: 1px solid rgba(245,158,11,.2);
  }
  .tool-feature-body {
    padding: 20px 20px 24px;
    border-left: none;
  }
  .tool-feature-name {
    font-size: 1.25rem;
  }
  .tool-feature-name span {
    font-size: 1.55rem;
  }
  .tool-feature-ribbon-text {
    font-size: .82rem;
  }
}

.tools-tip {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
}
.tools-tip-icon {
  width: 48px; height: 48px;
  background: rgba(245,158,11,.15);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--color-primary);
  flex-shrink: 0;
}
.tools-tip h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 10px;
}
.tools-tip p {
  font-size: .88rem;
  color: rgba(255,255,255,.6);
  line-height: 1.8;
}
.tools-tip strong { color: var(--color-white); }

/* ============================================================
   BACK TO TOP
============================================================ */
.back-to-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 44px; height: 44px;
  background: var(--color-primary);
  color: var(--color-dark);
  border: none;
  border-radius: 50%;
  font-size: .9rem;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  z-index: 999;
}
.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.back-to-top:hover {
  background: var(--color-primary-dark);
  transform: translateY(-3px);
}

/* ============================================================
   RESPONSIVE
============================================================ */
@media (max-width: 1024px) {
  .reason-cards { grid-template-columns: repeat(2, 1fr); }
  .hero-content { grid-template-columns: 1fr; gap: 40px; }
  .hero-image-wrap { grid-column: 1; grid-row: auto; max-width: 520px; margin: 0 auto; }
  .hero-badge, .hero-title, .hero-sub, .hero-stats, .hero-actions { text-align: center; }
  .hero-stats { justify-content: center; }
  .hero-actions { justify-content: center; }
}

@media (max-width: 900px) {
  .contact-wrap { grid-template-columns: 1fr; }
  .stats-highlight { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
  :root { --header-h: 60px; }
  .section { padding: 72px 0; }
  /* 欠陥・試験・工具のレスポンシブ */
  .defects-grid { grid-template-columns: 1fr; }
  .exam-info-cards { grid-template-columns: repeat(2, 1fr); }
  .exam-steps { flex-direction: column; }
  .exam-step-arrow { transform: rotate(90deg); padding-top: 0; align-self: center; }
  .exam-flow { padding: 24px; }
  .exam-problems { padding: 24px; }
  .tools-grid { grid-template-columns: repeat(2, 1fr); }
  .defect-alert { flex-direction: column; gap: 12px; }
  .defect-point-box { flex-direction: column; }
  .tools-tip { flex-direction: column; }

  /* Nav */
  .main-nav {
    position: fixed;
    top: 0; right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background: var(--color-dark);
    flex-direction: column;
    justify-content: flex-start;
    padding: calc(var(--header-h) + 24px) 24px 40px;
    transition: right var(--transition);
    border-left: 1px solid rgba(255,255,255,.08);
    z-index: 999;
    overflow-y: auto;
  }
  .main-nav.open { right: 0; }
  .nav-list { flex-direction: column; gap: 4px; width: 100%; }
  .nav-link { width: 100%; padding: 14px 16px; font-size: 1rem; }

  .menu-toggle { display: flex; z-index: 1001; }

  /* Nav overlay */
  .nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.5);
    z-index: 998;
  }
  .nav-overlay.active { display: block; }

  /* Hero */
  .hero { min-height: auto; padding-top: var(--header-h); }
  .hero-content { padding-bottom: 48px; }

  /* Feature cards */
  .feature-card,
  .feature-card--reverse {
    grid-template-columns: 1fr;
  }
  .feature-card--reverse .feature-img-wrap,
  .feature-card--reverse .feature-body { order: unset; }
  .feature-img-wrap { height: 220px; }
  .feature-body, .feature-card--reverse .feature-body { padding: 28px; }

  /* Reason */
  .reason-cards { grid-template-columns: 1fr 1fr; }

  /* Schedule */
  .schedule-table th { display: table-cell; }

  /* Points */
  .points-list { grid-template-columns: 1fr; }
  .points-box { padding: 28px; }

  /* Stats */
  .stats-highlight { grid-template-columns: 1fr; gap: 16px; }

  /* Form */
  .form-row { grid-template-columns: 1fr; }

  /* Hero image */
  .hero-img-badge { bottom: -10px; right: -10px; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .reason-cards { grid-template-columns: 1fr; }
  .hero-stats { flex-direction: column; gap: 16px; }
  .stat-divider { width: 80px; height: 1px; }
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .section-title { font-size: 1.5rem; }
  .contact-form { padding: 24px 20px; }
  .sp-hide { display: none; }
  .exam-info-cards { grid-template-columns: 1fr 1fr; }
  .tools-grid { grid-template-columns: 1fr; }
}