:root { --primary: #06BBCC; --light: #F0FBFC; --dark: #181d38; }
html, body { overflow-x: hidden; }
body { font-family: 'Noto Sans JP', sans-serif; color: #333; }
h1,h2,h3,h4,h5,h6,.btn { font-family: 'Noto Sans JP', sans-serif; }
.btn { font-weight: 700; transition: .3s; }
.btn-primary { background-color: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background-color: #05a8b8; border-color: #05a8b8; color: #fff; }
.btn-outline-primary { border-color: var(--primary); color: var(--primary); }
.btn-outline-primary:hover { background-color: var(--primary); color: #fff; }
.text-primary { color: var(--primary) !important; }
.bg-light-primary { background: var(--light); }
.bg-light-gray { background: #f5f5f5; }
.section-py { padding: 80px 0; }

/* Section title label */
.section-label {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 10px;
}

/* Hero */
.about-hero {
  background: linear-gradient(135deg, rgba(24,29,56,.65) 0%, rgba(6,50,80,.55) 100%),
    url('../img/bg_focus.jpg') center/cover no-repeat;
  padding: 110px 0 90px;
  color: #fff;
}
.about-hero h1 { font-size: 2.8rem; font-weight: 900; line-height: 1.2; margin-bottom: 20px; }
.about-hero p { font-size: 1.1rem; opacity: .9; max-width: 600px; }
@media (max-width: 767px) {
  .about-hero { padding: 70px 0 60px; }
  .about-hero h1 { font-size: 2rem; }
}

/* Lead text */
.lead-text { font-size: 1.05rem; line-height: 2; color: #444; }

/* Problem items (BACKGROUND section) */
.problem-item {
  display: flex;
  gap: 28px;
  padding: 28px 0;
  border-bottom: 1px solid #c8e9ed;
  align-items: flex-start;
}
.problem-item--last { border-bottom: none; }
.problem-num {
  font-size: 2rem;
  font-weight: 900;
  color: var(--primary);
  opacity: .3;
  line-height: 1;
  flex-shrink: 0;
  min-width: 44px;
  font-family: 'Poppins', sans-serif;
}

/* Approach cards (OUR APPROACH section) */
.approach-card {
  background: #fff;
  border: 1.5px solid #c8e9ed;
  border-radius: 12px;
  padding: 36px 28px;
  height: 100%;
  transition: .3s;
  font-size: .9rem;
  line-height: 1.9;
  color: #555;
}
.approach-card:hover {
  box-shadow: 0 8px 28px rgba(6,187,204,.15);
  transform: translateY(-4px);
  border-color: var(--primary);
}
.approach-card-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 16px;
}
.approach-card-header h5 { color: var(--primary); }
.approach-icon {
  font-size: 1.6rem;
  color: var(--primary);
  flex-shrink: 0;
}

/* CEO profile */
@media (min-width: 992px) {
  .ceo-container { padding-left: 120px; padding-right: 120px; }
}
.ceo-photo {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0,0,0,.12);
}
.ceo-photo img { width: 100%; display: block; }
.ceo-label { font-size: 11px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--primary); }
.ceo-name { font-size: 1.6rem; font-weight: 900; margin-bottom: 4px; }
.ceo-title { font-size: 0.9rem; color: #888; margin-bottom: 20px; }
.ceo-quote {
  border-left: 4px solid var(--primary);
  padding: 16px 20px;
  background: var(--light);
  border-radius: 0 8px 8px 0;
  font-size: 1rem;
  line-height: 1.8;
  color: #444;
  margin: 24px 0;
  font-style: italic;
}

/* Career list */
.career-list { list-style: none; padding: 0; margin: 0; }
.career-list li {
  padding: 8px 0 8px 20px;
  position: relative;
  border-bottom: 1px solid #eee;
  font-size: 0.9rem;
  color: #555;
}
.career-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
}

/* Book cards */
.book-card {
  background: #fff;
  border: 1px solid #e0f5f7;
  border-radius: 10px;
  padding: 28px 22px;
  height: 100%;
  transition: .3s;
  display: flex !important;
  flex-direction: column;
}
.book-card:hover {
  box-shadow: 0 6px 20px rgba(6,187,204,.15);
  transform: translateY(-3px);
  border-color: var(--primary);
}
.book-img-wrap {
  text-align: center;
  margin-bottom: 36px;
}
.book-img-wrap img {
  max-height: 180px;
  width: auto;
  border-radius: 4px;
  box-shadow: 0 4px 12px rgba(0,0,0,.15);
}
.book-link {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--primary);
  display: block;
  text-align: right;
  margin-top: auto;
  padding-top: 12px;
}
.book-card:hover .book-link { color: #05a8b8; }
.book-num {
  display: inline-block;
  width: 28px;
  height: 28px;
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  border-radius: 50%;
  text-align: center;
  line-height: 28px;
  margin-bottom: 12px;
}
.book-title { font-size: 0.95rem; font-weight: 700; color: #1a3a4c; margin-bottom: 8px; line-height: 1.5; }
.book-desc { font-size: 0.82rem; color: #777; line-height: 1.7; flex-grow: 1; }

/* CTA */
.about-cta {
  background: linear-gradient(135deg, var(--dark) 0%, #0a4060 100%);
  padding: 80px 0;
  text-align: center;
  color: #fff;
}
.about-cta h2 { font-size: 2rem; font-weight: 900; margin-bottom: 16px; }
.about-cta p { font-size: 1rem; opacity: .85; margin-bottom: 32px; }

/* Section divider image */
.section-img {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0,0,0,.1);
}
.section-img img { width: 100%; display: block; }

a { color: var(--primary); font-size: inherit; }
a:hover { color: #05a8b8; }