body {
  margin: 0;
  padding: 0;
  background: #f5f7fa;
  color: #222;
  font-family: "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;
  line-height: 1.8;
}

header {
  background: linear-gradient(135deg, #111827, #374151);
  color: #fff;
  padding: 70px 20px 60px;
  text-align: center;
}

header .site-name {
  font-size: 16px;
  letter-spacing: 0.18em;
  color: #bfdbfe;
  font-weight: bold;
  margin-bottom: 14px;
}

header h1 {
  font-size: 42px;
  line-height: 1.4;
  margin: 0 0 20px;
}

header p {
  font-size: 18px;
  opacity: 0.95;
  margin: 0 auto 28px;
  max-width: 760px;
}

.main-nav {
  background: #1f2937;
  text-align: center;
  box-shadow: 0 2px 5px rgba(0,0,0,.1);
}

.main-nav a {
  display: inline-block;
  color: #fff;
  text-decoration: none;
  padding: 16px 20px;
  font-weight: bold;
  transition: .2s;
}

.main-nav a:hover {
  background: #2563eb;
}

.hero-badges {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin: 24px 0 0;
}

.hero-badges span {
  width: 180px;
  box-sizing: border-box;
  text-align: center;

  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.25);
  color: #fff;

  padding: 10px 12px;
  border-radius: 999px;

  font-size: 14px;
  font-weight: bold;
}

.hero-buttons {
  margin-top: 30px;
}

.hero-buttons a {
  display: inline-block;
  background: #dc2626;
  color: #fff;
  text-decoration: none;
  padding: 14px 24px;
  border-radius: 8px;
  font-weight: bold;
  margin: 6px;
}

.hero-buttons a.secondary {
  background: #2563eb;
}

.hero-buttons a:hover {
  opacity: 0.9;
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  background: #fff;
  padding: 24px;
}

.notice {
  background: #fff7ed;
  border-left: 6px solid #f97316;
  padding: 18px;
  margin: 30px 0;
  font-size: 14px;
}

.lead-box {
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: 14px;
  padding: 24px;
  margin: 30px 0 40px;
}

h2 {
  font-size: 28px;
  margin-top: 60px;
  margin-bottom: 24px;
  border-bottom: 3px solid #2563eb;
  padding-bottom: 10px;
}

h3 {
  font-size: 22px;
  margin: 0 0 12px;
  color: #111827;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin: 30px 0 40px;
}

.summary-card {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 16px;
  padding: 22px;
  box-shadow: 0 4px 14px rgba(0,0,0,0.05);
}

.summary-card strong {
  display: block;
  font-size: 13px;
  color: #4b5563;
  margin-bottom: 8px;
}

.summary-card .amount {
  font-size: 30px;
  line-height: 1.3;
  font-weight: bold;
  color: #111827;
}

.summary-card.main {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  border: none;
}

.summary-card.main strong,
.summary-card.main .amount {
  color: #fff;
}

.content-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin: 30px 0 40px;
}

.content-card,
.profile-box,
.history-box,
.warning-box,
.ranking-box,
.card-box,
.result-box,
.analysis-box,
.policy-box,
.form-box,
.faq-box {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 14px;
  padding: 24px;
  box-shadow: 0 4px 14px rgba(0,0,0,0.05);
}

.content-card p,
.ranking-box p {
  margin-top: 0;
}

.content-card .tag {
  display: inline-block;
  background: #eff6ff;
  color: #1d4ed8;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: bold;
  margin-bottom: 12px;
}

.btn {
  display: inline-block;
  margin-top: 14px;
  background: #dc2626;
  color: #fff;
  text-decoration: none;
  padding: 12px 22px;
  border-radius: 8px;
  font-weight: bold;
}

.btn.blue {
  background: #2563eb;
}

.btn.gray {
  background: #374151;
}

.btn:hover {
  opacity: 0.9;
}

.history {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
}

.history li {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 18px;
  padding: 18px 0;
  border-bottom: 1px solid #e5e7eb;
}

.history li:last-child {
  border-bottom: none;
}

.history .year {
  font-weight: bold;
  color: #2563eb;
}

.article-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.article-item {
  background: #f9fafb;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 18px;
}

.article-item a {
  color: #111827;
  font-weight: bold;
  text-decoration: none;
}

.article-item a:hover {
  color: #2563eb;
  text-decoration: underline;
}

.ranking-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.ranking-box .label {
  display: inline-block;
  background: #111827;
  color: #fff;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: bold;
  margin-bottom: 12px;
}

.table-wrap {
  overflow-x: auto;
  margin-top: 20px;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  border: 1px solid #ddd;
  padding: 12px;
  vertical-align: top;
  font-size: 15px;
}

th {
  background: #f3f4f6;
  text-align: left;
}

.comparison-table {
  min-width: 760px;
}

.comparison-table th {
  background: #2563eb;
  color: #fff;
}

.comparison-table td:first-child {
  font-weight: bold;
}

.total-row td {
  background: #eff6ff;
  font-weight: bold;
}

.status-ok {
  color: #dc2626;
  font-weight: bold;
}

.status-ng {
  color: #374151;
  font-weight: bold;
}

.card-image {
  text-align: center;
  margin-bottom: 24px;
}

.card-image img {
  width: 100%;
  max-width: 420px;
  border-radius: 14px;
  border: 1px solid #ddd;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  background: #fff;
}

.point-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.point-list li {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 14px;
  font-weight: bold;
}

.card-summary {
  background: #f9fafb;
  border-radius: 12px;
  padding: 18px;
  margin: 18px 0;
}

.question {
  font-size: 20px;
  font-weight: bold;
  color: #111827;
  margin-bottom: 14px;
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.question span {
  display: inline-block;
  background: #2563eb;
  color: #fff;
  font-size: 14px;
  padding: 3px 9px;
  border-radius: 999px;
  margin-top: 2px;
  flex-shrink: 0;
}

.answer {
  color: #333;
  margin: 0;
}

input,
textarea {
  width: 100%;
  box-sizing: border-box;
  padding: 12px;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  font-size: 15px;
  font-family: inherit;
}

textarea {
  min-height: 200px;
  resize: vertical;
}

label {
  display: block;
  margin-top: 18px;
  margin-bottom: 6px;
  font-weight: bold;
}

button {
  display: inline-block;
  margin-top: 24px;
  background: #2563eb;
  color: #fff;
  border: none;
  padding: 14px 30px;
  border-radius: 8px;
  font-weight: bold;
  font-size: 16px;
  cursor: pointer;
}

button:hover {
  background: #1d4ed8;
}

.success {
  background: #ecfdf5;
  border-left: 6px solid #10b981;
  color: #065f46;
  padding: 16px;
  border-radius: 8px;
  margin-bottom: 24px;
  font-weight: bold;
}

.error {
  background: #fef2f2;
  border-left: 6px solid #dc2626;
  color: #991b1b;
  padding: 16px;
  border-radius: 8px;
  margin-bottom: 24px;
  font-weight: bold;
}

.small {
  font-size: 13px;
  color: #666;
  margin-top: 18px;
}

ul {
  padding-left: 20px;
}

footer {
  text-align: center;
  padding: 40px 20px;
  margin-top: 60px;
  background: #111827;
  color: #d1d5db;
  font-size: 14px;
}

.footer-links {
  margin-top: 15px;
}

.footer-links a {
  color: #93c5fd;
  text-decoration: none;
  margin: 0 12px;
  transition: all 0.2s ease;
}

.footer-links a:hover {
  color: #ffffff;
  text-decoration: underline;
}

.footer-separator {
  color: #6b7280;
}

@media (max-width: 900px) {
  .summary-grid,
  .content-grid,
  .ranking-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .main-nav {
    overflow-x: auto;
    white-space: nowrap;
  }

  .main-nav a {
    padding: 14px 16px;
    font-size: 14px;
  }
}

@media (max-width: 600px) {
  header {
    padding: 50px 16px;
  }

  header h1 {
    font-size: 28px;
  }

  header p {
    font-size: 16px;
  }

  h2 {
    font-size: 22px;
  }

  .container {
    padding: 16px;
  }

  .summary-grid,
  .content-grid,
  .ranking-grid,
  .article-list,
  .point-list {
    grid-template-columns: 1fr;
  }

  .summary-card .amount {
    font-size: 26px;
  }

  .history li {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .footer-links a {
    display: inline-block;
    margin: 4px 8px;
  }
}

.hero-buttons {
  margin-top: 30px;
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.hero-buttons a {
  width: 280px;
  text-align: center;
  box-sizing: border-box;
}




/* ===== main-nav dropdown menu ===== */

.main-nav {
  background: #1f2937;
  color: #fff;
  text-align: center;
  box-shadow: 0 2px 5px rgba(0,0,0,.1);
  position: relative;
  z-index: 1000;
}

.main-nav ul {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0;
  list-style: none;
  display: flex;
  justify-content: center;
}

.main-nav ul li {
  position: relative;
  background: #1f2937;
  margin: 0;
  padding: 0;
}

.main-nav > ul > li > a {
  display: block;
  color: #fff;
  text-decoration: none;
  padding: 16px 14px;
  font-weight: bold;
  transition: .2s;
  white-space: nowrap;
}

.main-nav > ul > li > a:hover {
  background: #2563eb;
}

.main-nav ul li.child > a {
  padding-left: 28px;
}

.main-nav ul li.child::before {
  content: '';
  position: absolute;
  left: 12px;
  top: 22px;
  width: 6px;
  height: 6px;
  border-top: 2px solid #fff;
  border-right: 2px solid #fff;
  transform: rotate(135deg);
  z-index: 2;
}

.main-nav ul li ul {
  display: none;
  width: 260px;
  position: absolute;
  left: 0;
  top: 100%;
  z-index: 9999;
  margin: 0;
  padding: 0;
  list-style: none;
  box-shadow: 0 8px 18px rgba(0,0,0,.18);
}

.main-nav ul li.child:hover > ul,
.main-nav ul li.child:active > ul {
  display: block;
}

.main-nav ul li ul li {
  width: 100%;
  background: #374151;
  border-bottom: 1px solid rgba(255,255,255,.18);
}

.main-nav ul li ul li a {
  display: block;
  color: #fff;
  text-decoration: none;
  padding: 12px 14px;
  font-weight: bold;
  text-align: left;
  white-space: normal;
}

.main-nav ul li ul li a:hover,
.main-nav ul li ul li a:active {
  background: #2563eb;
}

@media (max-width: 768px) {
  .main-nav {
    overflow-x: auto;
    white-space: nowrap;
  }

  .main-nav ul {
    justify-content: flex-start;
    min-width: max-content;
  }

  .main-nav > ul > li > a {
    padding: 14px 12px;
    font-size: 14px;
  }

  .main-nav ul li.child::before {
    top: 20px;
  }

  .main-nav ul li ul {
    width: 240px;
  }
}

/* ===== /main-nav dropdown menu ===== */