@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;700&family=Oswald:wght@400;700&display=swap');

:root {
  --bg-color: #0f1115;
  --surface-color: #1a1d24;
  --primary-color: #ff2a6d; /* Neon Pink */
  --secondary-color: #05d9e8; /* Cyan */
  --text-primary: #f8f9fa;
  --text-secondary: #adb5bd;
  --accent-color: #d1f7ff;
  --border-color: #2a2e37;
  --gradient-neon: linear-gradient(135deg, #ff2a6d, #05d9e8);
}

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

body {
  font-family: 'Noto Sans JP', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

header {
  background: rgba(26, 29, 36, 0.8);
  backdrop-filter: blur(10px);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border-color);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: 'Oswald', sans-serif;
  font-size: 1.8rem;
  font-weight: 700;
  text-decoration: none;
  color: var(--text-primary);
  letter-spacing: 1px;
}

.logo span {
  background: var(--gradient-neon);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 2rem;
}

nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 700;
  transition: color 0.3s ease;
}

nav a:hover {
  color: var(--secondary-color);
}

main {
  max-width: 1000px;
  margin: 100px auto 4rem;
  padding: 0 2rem;
}

.hero {
  text-align: center;
  padding: 4rem 0;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 4rem;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  background: var(--gradient-neon);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.article-header {
  margin-bottom: 3rem;
  text-align: center;
}

.article-header h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.article-meta {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.content-section {
  background: var(--surface-color);
  border-radius: 12px;
  padding: 2rem;
  margin-bottom: 2rem;
  border: 1px solid var(--border-color);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease;
}

.content-section:hover {
  transform: translateY(-5px);
}

.content-section h2 {
  font-size: 1.8rem;
  color: var(--secondary-color);
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 0.5rem;
  margin-bottom: 1.5rem;
}

.content-section p {
  margin-bottom: 1.5rem;
}

.affiliate-box {
  background: linear-gradient(145deg, #1e222b, #15171d);
  border-left: 4px solid var(--primary-color);
  padding: 2rem;
  border-radius: 8px;
  margin-top: 3rem;
  text-align: center;
}

.affiliate-box h3 {
  margin-bottom: 1rem;
  font-size: 1.5rem;
}

.cta-button {
  display: inline-block;
  background: var(--gradient-neon);
  color: #fff;
  text-decoration: none;
  padding: 1rem 2.5rem;
  border-radius: 30px;
  font-weight: bold;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(255, 42, 109, 0.4);
}

.cta-button:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 20px rgba(5, 217, 232, 0.5);
}

footer {
  text-align: center;
  padding: 3rem 0;
  border-top: 1px solid var(--border-color);
  color: var(--text-secondary);
  margin-top: 4rem;
}