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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  background-color: #eef5ff;
  color: #0d2040;
  line-height: 1.8;
  font-size: 16px;
}

/* ===========================
   Header
=========================== */
header {
  background: linear-gradient(135deg, #1e6edb 0%, #0ea5e9 100%);
  border-bottom: none;
  height: 64px;
  padding: 0 24px;
  display: flex;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.app-title {
  font-size: 1.4rem;
  font-weight: 800;
  line-height: 1;
  color: #fff;
  -webkit-text-fill-color: #fff;
  background: none;
}

/* ===========================
   Language Toggle
=========================== */
.lang-toggle {
  display: flex;
  gap: 8px;
}

.lang-btn {
  background: transparent;
  border: 1.5px solid rgba(255, 255, 255, 0.6);
  color: #fff;
  padding: 6px 14px;
  border-radius: 20px;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  line-height: 1;
  transition: background 0.2s, color 0.2s;
}

.lang-btn:hover {
  background: rgba(255, 255, 255, 0.25);
  color: #fff;
}

.lang-btn.active {
  background: #fff;
  color: #1e6edb;
  border-color: #fff;
}

/* ===========================
   Hero
=========================== */
.hero {
  text-align: center;
  padding: 48px 24px 32px;
  background: linear-gradient(180deg, #d0e8ff 0%, #eef5ff 100%);
}

.hero-subtitle {
  font-size: 1.1rem;
  color: #1e6edb;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 8px;
}

.hero-date {
  font-size: 0.85rem;
  color: #7a9ab8;
}

/* ===========================
   Content
=========================== */
.content {
  max-width: 760px;
  margin: 0 auto 64px;
  padding: 0 24px;
}

/* ===========================
   Policy Sections
=========================== */
.policy-section {
  margin-bottom: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid #c8dff5;
}

.policy-section:last-child {
  border-bottom: none;
}

.policy-section h2 {
  font-size: 1.1rem;
  font-weight: 700;
  color: #1a4a8a;
  margin-bottom: 16px;
  padding-left: 12px;
  border-left: 3px solid #1e6edb;
}

.policy-section p {
  color: #2a4a6a;
  font-size: 0.93rem;
  margin-bottom: 12px;
}

.policy-section ul {
  list-style: none;
  padding: 0;
  margin: 12px 0;
}

.policy-section ul li {
  color: #2a4a6a;
  font-size: 0.93rem;
  padding: 6px 0 6px 20px;
  position: relative;
}

.policy-section ul li::before {
  content: "•";
  color: #1e6edb;
  position: absolute;
  left: 6px;
  font-size: 1rem;
}

/* ===========================
   Third Party Items
=========================== */
.third-party-item {
  background: #fff;
  border: 1px solid #b8d4f0;
  border-radius: 12px;
  padding: 18px 20px;
  margin-top: 14px;
}

.third-party-item h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: #1a4a8a;
  margin-bottom: 8px;
}

.third-party-item p {
  margin-bottom: 0;
  font-size: 0.9rem;
}

/* ===========================
   Contact Section
=========================== */
.contact-section {
  text-align: center;
  background: linear-gradient(135deg, #d0e8ff, #bfe0ff);
  border: 1px solid #90c4f0;
  border-radius: 16px;
  padding: 36px 32px;
  border-bottom: none;
}

.contact-section h2 {
  border-left: none;
  padding-left: 0;
  text-align: center;
}

.contact-email {
  display: inline-block;
  background: linear-gradient(135deg, #1e6edb, #0ea5e9);
  color: #fff;
  text-decoration: none;
  padding: 12px 28px;
  border-radius: 28px;
  font-weight: 700;
  font-size: 0.95rem;
  margin-top: 8px;
  transition: opacity 0.2s, transform 0.15s;
}

.contact-email:hover {
  opacity: 0.85;
  transform: translateY(-1px);
}

/* ===========================
   Footer
=========================== */
footer {
  border-top: 1px solid #c8dff5;
  padding: 28px 24px;
  background-color: #f5faff;
}

.footer-inner {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-copy {
  color: #7a9ab8;
  font-size: 0.82rem;
}

.footer-link {
  color: #4a7aaa;
  font-size: 0.85rem;
  text-decoration: none;
  transition: color 0.2s;
}

.footer-link:hover {
  color: #1e6edb;
}

/* ===========================
   Responsive
=========================== */
@media (max-width: 480px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .contact-section {
    padding: 24px 20px;
  }

  .policy-section h2 {
    font-size: 1rem;
  }
}