:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --accent: #e11d48;
  --bg-body: #f8fafc;
  --bg-card: #ffffff;
  --text-main: #0f172a;
  --text-muted: #475569;
  --border: #e2e8f0;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
  background-color: var(--bg-body);
  color: var(--text-main);
  line-height: 1.75;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.pr-bar {
  background-color: #f1f5f9;
  color: #64748b;
  font-size: 0.78rem;
  text-align: center;
  padding: 6px 12px;
  border-bottom: 1px solid var(--border);
}

header {
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.header-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.site-logo {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.site-logo span {
  color: var(--primary);
}

nav {
  display: flex;
  gap: 20px;
  font-size: 0.92rem;
  font-weight: 600;
}

nav a {
  color: var(--text-muted);
}

nav a:hover {
  color: var(--primary);
  text-decoration: none;
}

.hero {
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  color: #ffffff;
  padding: 60px 20px;
  text-align: center;
}

.hero-inner {
  max-width: 820px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  background: rgba(37, 99, 235, 0.25);
  border: 1px solid #60a5fa;
  color: #93c5fd;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.hero h1 {
  font-size: 2.1rem;
  font-weight: 800;
  line-height: 1.35;
  margin-bottom: 16px;
}

.hero p {
  font-size: 1.05rem;
  color: #cbd5e1;
  margin-bottom: 24px;
}

.container {
  max-width: 1040px;
  margin: 40px auto;
  padding: 0 20px;
}

.section-title {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 24px;
  padding-left: 14px;
  border-left: 5px solid var(--primary);
}

/* Comparison Table */
.table-wrap {
  background: var(--bg-card);
  border-radius: 12px;
  box-shadow: var(--shadow);
  overflow-x: auto;
  margin-bottom: 48px;
  border: 1px solid var(--border);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 680px;
}

th, td {
  padding: 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}

th {
  background-color: #f8fafc;
  font-weight: 700;
  color: var(--text-muted);
}

tr:last-child td {
  border-bottom: none;
}

.badge-recommend {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  margin-left: 6px;
  vertical-align: middle;
}

/* Article Grid */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
  margin-bottom: 48px;
}

.card {
  background: var(--bg-card);
  border-radius: 12px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.08);
}

.card-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary);
  background: #eff6ff;
  padding: 3px 10px;
  border-radius: 4px;
  margin-bottom: 12px;
}

.card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 10px;
  color: var(--text-main);
}

.card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 18px;
}

.btn {
  display: inline-block;
  background-color: var(--primary);
  color: #ffffff;
  font-weight: 700;
  font-size: 0.9rem;
  padding: 10px 20px;
  border-radius: 8px;
  text-align: center;
  transition: background-color 0.2s;
}

.btn:hover {
  background-color: var(--primary-dark);
  text-decoration: none;
}

.btn-accent {
  background-color: var(--accent);
}

.btn-accent:hover {
  background-color: #be123c;
}

/* Article Page */
.article-container {
  max-width: 820px;
  margin: 40px auto;
  background: var(--bg-card);
  border-radius: 14px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  padding: 40px;
}

.article-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.article-container h1 {
  font-size: 1.85rem;
  font-weight: 800;
  line-height: 1.4;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--border);
}

.article-container h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin: 36px 0 16px;
  padding: 8px 14px;
  background: #f1f5f9;
  border-left: 4px solid var(--primary);
  border-radius: 0 6px 6px 0;
}

.article-container h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 24px 0 10px;
  color: var(--text-main);
}

.article-container p {
  margin-bottom: 16px;
  color: #1e293b;
}

.article-container ul, .article-container ol {
  margin: 0 0 20px 24px;
}

.article-container li {
  margin-bottom: 8px;
}

.info-box {
  background: #f8fafc;
  border: 1px solid #cbd5e1;
  border-radius: 10px;
  padding: 20px 24px;
  margin: 24px 0;
}

.info-box-title {
  font-weight: 800;
  color: var(--primary-dark);
  margin-bottom: 8px;
  font-size: 1.05rem;
}

.cta-box {
  background: #fff1f2;
  border: 2px solid #fecdd3;
  border-radius: 12px;
  padding: 28px;
  text-align: center;
  margin: 32px 0;
}

.cta-box h3 {
  margin-top: 0;
  color: #9f1239;
}

footer {
  background-color: #0f172a;
  color: #94a3b8;
  padding: 40px 20px;
  margin-top: 60px;
}

.footer-inner {
  max-width: 1040px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  text-align: center;
}

.footer-links {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  justify-content: center;
  font-size: 0.9rem;
}

.footer-links a {
  color: #cbd5e1;
}

@media (max-width: 640px) {
  .hero h1 { font-size: 1.55rem; }
  .article-container { padding: 24px 18px; margin: 20px 12px; }
  .article-container h1 { font-size: 1.45rem; }
}