* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  background: #f5f7fb;
  color: #1f2933;
}
a { text-decoration: none; color: inherit; }

.notice-bar {
  background: #0b3a7a;
  color: #f9fafb;
  text-align: center;
  font-size: 0.85rem;
  padding: 0.35rem 1rem;
}

header {
  background: #ffffff;
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid #e5e7eb;
}

.nav-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0.55rem 0.75rem;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 1.5rem;
}

.nav-container > nav {
  margin-left: 1.5rem;
}

.nav-container > .btn-primary {
  margin-left: auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.logo-img {
  height: 48px;
  width: 48px;
  border-radius: 999px;
  background: #ffffff;
  object-fit: cover;
}

.logo-text-main {
  font-weight: 800;
  font-size: 1rem;
  color: #0b3a7a;
  line-height: 1.2;
  white-space: nowrap;
}

.logo-text-sub {
  display: block;
  font-size: 0.7rem;
  font-weight: 500;
  color: #6b7280;
}

nav ul {
  display: flex;
  gap: 0.7rem;
  list-style: none;
  font-size: 0.85rem;
}

nav a {
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
}

nav a:hover,
nav a.active {
  background: #e0ebff;
}

nav .nav-toggle,
.nav-toggle {
  display: none;
  background: transparent;
  border: none;
  font-size: 1.4rem;
  cursor: pointer;
  margin-left: auto;
  color: #0b3a7a;
}

.btn-primary {
  background: #0b3a7a;
  color: #ffffff;
  padding: 0.45rem 1rem;
  border-radius: 999px;
  font-size: 0.9rem;
  border: none;
  cursor: pointer;
  display: inline-block;
}

.btn-primary:hover {
  background: #062a56;
}

.hero {
  background: linear-gradient(135deg, #0b3a7a, #06b6d4);
  color: #ffffff;
  padding: 3rem 1rem 3.5rem;
}

.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2rem;
  align-items: center;
}

.hero h1 {
  font-size: 2.2rem;
  margin-bottom: 0.75rem;
}

.hero p {
  font-size: 0.95rem;
  max-width: 30rem;
  margin-bottom: 1.5rem;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.badge {
  background: rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero-card {
  background: rgba(15, 23, 42, 0.15);
  border-radius: 1rem;
  padding: 1rem 1.25rem;
  border: 1px solid rgba(148, 163, 184, 0.4);
  backdrop-filter: blur(4px);
}

.hero-card h2 {
  font-size: 1.1rem;
  margin-bottom: 0.4rem;
}

.hero-list {
  margin-left: 1.1rem;
  margin-bottom: 0.6rem;
  font-size: 0.9rem;
}

.main {
  max-width: 1100px;
  margin: 2.5rem auto;
  padding: 0 1rem 3rem;
}

.main h1 {
  font-size: 1.6rem;
  margin-bottom: 0.75rem;
  color: #111827;
}

.main h2 {
  font-size: 1.3rem;
  margin-bottom: 0.6rem;
  color: #111827;
}

.main p {
  font-size: 0.95rem;
  color: #4b5563;
  margin-bottom: 0.75rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-top: 1.25rem;
}

.card {
  background: #ffffff;
  border-radius: 1rem;
  padding: 1rem;
  border: 1px solid #e5e7eb;
  box-shadow: 0 4px 10px rgba(15, 23, 42, 0.05);
  font-size: 0.9rem;
}

.card h3 {
  font-size: 1rem;
  margin-bottom: 0.4rem;
  color: #111827;
}

.branch-tag {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  font-size: 0.7rem;
  border-radius: 999px;
  background: #eff6ff;
  color: #0b3a7a;
  margin-bottom: 0.4rem;
}

.form-group {
  margin-bottom: 0.75rem;
}

.form-label {
  font-size: 0.85rem;
  display: block;
  margin-bottom: 0.25rem;
  color: #374151;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.5rem 0.6rem;
  border-radius: 0.5rem;
  border: 1px solid #d1d5db;
  font-size: 0.9rem;
  outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: #0b3a7a;
  box-shadow: 0 0 0 1px rgba(11, 58, 122, 0.2);
}

.form-textarea {
  min-height: 90px;
  resize: vertical;
}

.form-helper {
  font-size: 0.75rem;
  color: #6b7280;
  margin-top: 0.15rem;
}

.footer {
  background: #111827;
  color: #e5e7eb;
  margin-top: 2.5rem;
  padding: 1.75rem 1rem;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  font-size: 0.85rem;
}

.footer-columns {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
}

.footer h4 {
  font-size: 0.95rem;
  margin-bottom: 0.3rem;
  color: #f9fafb;
}

.notice-list li {
  margin-left: 1rem;
  margin-bottom: 0.25rem;
}

/* Floating chat button */
.chat-float {
  position: fixed;
  bottom: 18px;
  right: 18px;
  background: #0b3a7a;
  color: #ffffff;
  border-radius: 999px;
  padding: 0.6rem 1rem;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  box-shadow: 0 4px 10px rgba(15, 23, 42, 0.3);
  z-index: 70;
  border: none;
  cursor: pointer;
}
.chat-float span.icon {
  font-size: 1.1rem;
}
.chat-float:hover {
  background: #062a56;
}

/* Chat box */
.chat-box {
  position: fixed;
  bottom: 70px;
  right: 18px;
  width: 320px;
  max-width: calc(100% - 40px);
  background: #ffffff;
  border-radius: 1rem;
  box-shadow: 0 10px 25px rgba(15, 23, 42, 0.25);
  border: 1px solid #e5e7eb;
  z-index: 69;
  display: none;
  overflow: hidden;
}
.chat-box-header {
  background: #0b3a7a;
  color: #ffffff;
  padding: 0.6rem 0.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.9rem;
}
.chat-box-body {
  padding: 0.75rem;
  font-size: 0.85rem;
  color: #374151;
}
.chat-box-body p {
  margin-bottom: 0.4rem;
}
.chat-box textarea {
  width: 100%;
  padding: 0.45rem 0.6rem;
  border-radius: 0.6rem;
  border: 1px solid #d1d5db;
  resize: vertical;
  min-height: 70px;
  font-size: 0.85rem;
}
.chat-box button {
  margin-top: 0.5rem;
  width: 100%;
  font-size: 0.85rem;
}

.chat-box-close {
  background: transparent;
  border: none;
  color: #e5e7eb;
  cursor: pointer;
  font-size: 1rem;
}

/* Mobile adjustments */
@media (max-width: 768px) {
  .nav-container {
    flex-wrap: wrap;
    gap: 0.6rem;
    align-items: center;
  }
  .nav-toggle {
    display: block;
  }
  .nav-container nav {
    width: 100%;
  }
  nav ul {
    display: none;
    flex-direction: column;
    width: 100%;
    margin-top: 0.5rem;
    gap: 0.4rem;
  }
  header.nav-open nav ul {
    display: flex;
  }
  .logo-img {
    height: 40px;
    width: 40px;
  }
  .logo-text-main {
    font-size: 0.95rem;
  }
  .hero {
    padding: 2rem 1rem 2.5rem;
  }
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero h1 {
    font-size: 1.6rem;
    margin-bottom: 0.6rem;
  }
  .hero p {
    font-size: 0.95rem;
    max-width: 100%;
    margin: 0 auto 1.25rem;
  }
  .hero-badges {
    justify-content: center;
  }
  .hero-card {
    margin-top: 1.25rem;
    text-align: left;
  }
  .btn-primary {
    font-size: 0.85rem;
    padding: 0.4rem 0.9rem;
  }
  .main {
    margin-top: 2rem;
  }
}