@charset "UTF-8";
/* ========================================
   リセット & ベーススタイル
======================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: "Helvetica Neue", "Arial", "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Meiryo", sans-serif;
  line-height: 1.8;
  color: #333;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  background-attachment: fixed;
  padding: 0;
  margin: 0;
}
img {
  max-width: 100%;
  height: auto;
  vertical-align: middle;
}
a {
  color: #ff6b6b;
  text-decoration: none;
  transition: all 0.3s ease;
}
a:hover {
  color: #ff4757;
  text-decoration: underline;
}
/* ========================================
   ヘッダー
======================================== */
.page-header {
  background: #fff;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  border-bottom: 4px solid #feca57;
}
.header-wrap {
  max-width: 700px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
}
.brand-logo {
  font-size: 1.2rem;
  background: linear-gradient(90deg, #ff6b6b, #feca57, #48dbfb, #ff6b6b);
  background-size: 300%;
  animation: rainbowMove 5s linear infinite;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
@keyframes rainbowMove {
  0% { background-position: 0% 50%; }
  100% { background-position: 100% 50%; }
}
.brand-logo a {
  color: inherit;
  background: inherit;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-visual {
  margin: 0;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  transform: rotate(1deg);
  transition: transform 0.3s ease;
}
.hero-visual:hover {
  transform: rotate(0deg) scale(1.02);
}
.visual-img {
  display: block;
  width: 100%;
}
/* ========================================
   メインコンテンツ
======================================== */
.main-content {
  max-width: 700px;
  margin: 2rem auto;
  padding: 0 1.5rem;
}
.primary-section {
  background: #fff;
  border-radius: 30px;
  padding: 2rem 1.5rem;
  box-shadow: 0 15px 50px rgba(0, 0, 0, 0.15);
  position: relative;
  overflow: hidden;
}
.primary-section::before {
  content: "";
  position: absolute;
  top: -50px;
  right: -50px;
  width: 150px;
  height: 150px;
  background: #feca57;
  border-radius: 50%;
  opacity: 0.1;
  z-index: 0;
}
.primary-section::after {
  content: "";
  position: absolute;
  bottom: -70px;
  left: -70px;
  width: 200px;
  height: 200px;
  background: #48dbfb;
  border-radius: 50%;
  opacity: 0.1;
  z-index: 0;
}
.article-block {
  position: relative;
  z-index: 1;
}
/* ========================================
   見出し
======================================== */
.section-heading {
  font-size: 1.8rem;
  color: #2d3436;
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 4px dotted #feca57;
  position: relative;
  transform: rotate(-1deg);
}
.section-heading::before {
  content: "";
  margin-right: 0.5rem;
}
h2 {
  font-size: 1.6rem;
  color: #2d3436;
  margin: 2.5rem 0 1rem;
  padding: 1rem 1rem 1rem 1.5rem;
  background: linear-gradient(135deg, #ff6b6b 0%, #feca57 100%);
  border-radius: 15px;
  box-shadow: 0 5px 15px rgba(255, 107, 107, 0.3);
  transform: rotate(-0.5deg);
  position: relative;
  color: #fff;
  font-weight: bold;
}
h2::before {
  content: "";
  margin-right: 0.5rem;
  color: #fff;
}
h3 {
  font-size: 1.3rem;
  color: #2d3436;
  margin: 2rem 0 1rem;
  padding: 0.8rem 1rem;
  background: #ffeaa7;
  border-left: 6px solid #fdcb6e;
  border-radius: 10px;
  box-shadow: 0 3px 10px rgba(253, 203, 110, 0.3);
}
h3::before {
  content: "";
  color: #fdcb6e;
  font-weight: bold;
}
h4 {
  font-size: 1.1rem;
  color: #2d3436;
  margin: 1.5rem 0 0.8rem;
  padding: 0.6rem 1rem;
  background: #dfe6e9;
  border-radius: 8px;
  border-bottom: 3px solid #74b9ff;
}
h4::before {
  content: "● ";
  color: #74b9ff;
}
/* ========================================
   段落
======================================== */
p {
  margin: 1.2rem 0;
  line-height: 1.9;
  font-size: 1rem;
}
/* ========================================
   リスト
======================================== */
ul, ol {
  margin: 1.5rem 0;
  padding-left: 2rem;
}
ul li, ol li {
  margin: 0.8rem 0;
  padding-left: 0.5rem;
  line-height: 1.8;
}
/* 共通設定 */
ul, ol {
  list-style: none;
}
/* ulの装飾（olと同色） */
ul li {
  position: relative;
}
ul li::before {
  content: "\25CF"; /* ●（黒丸） */
  color: #ff6b6b;   /* オレンジ寄りの赤（お好みで変更可）*/
  font-size: 0.8rem; /* サイズ調整（小さめ）*/
  margin-right: 0.5rem;
}
/* olの装飾 */
ol {
  counter-reset: list-counter;
}
ol li {
  counter-increment: list-counter;
  position: relative;
}
ol li::before {
  content: counter(list-counter);
  display: inline-block;
  width: 1.8rem;
  height: 1.8rem;
  line-height: 1.8rem;
  text-align: center;
  background: #ff6b6b;
  color: #fff;
  border-radius: 50%;
  font-weight: bold;
  font-size: 0.85rem;
  margin-right: 0.5rem;
  margin-left: -2.5rem;
}
/* ========================================
   テーブル
======================================== */
table {
  width: 100%;
  margin: 2rem 0;
  border-collapse: separate;
  border-spacing: 0;
  background: #fff;
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}
thead {
  background: linear-gradient(135deg, #a29bfe 0%, #6c5ce7 100%);
}
thead th {
  color: #fff;
  font-weight: bold;
  padding: 1rem;
  text-align: left;
  font-size: 0.95rem;
}
tbody tr {
  transition: background 0.3s ease;
}
tbody tr:nth-child(odd) {
  background: #f8f9fa;
}
tbody tr:nth-child(even) {
  background: #fff;
}
tbody tr:hover {
  background: #ffeaa7;
}
tbody td {
  padding: 0.9rem 1rem;
  border-bottom: 1px solid #e9ecef;
  font-size: 0.95rem;
}
tbody tr:last-child td {
  border-bottom: none;
}
/* テーブルのレスポンシブ対応 */
@media (max-width: 600px) {
  table {
    font-size: 0.85rem;
  }
  
  thead th, tbody td {
    padding: 0.6rem 0.5rem;
  }
}
/* ========================================
   画像（中央寄せ）
======================================== */
.article-block img,
.article-block figure {
  display: block;
  margin: 2rem auto;
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
  max-width: 100%;
}
figure {
  text-align: center;
}
figcaption {
  margin-top: 0.8rem;
  font-size: 0.9rem;
  color: #636e72;
  font-style: italic;
}
/* ========================================
   フッター
======================================== */
.page-footer {
  background: rgba(255, 255, 255, 0.95);
  margin-top: 3rem;
  padding: 2rem 0;
  border-top: 4px solid #feca57;
}
.footer-wrap {
  max-width: 700px;
  margin: 0 auto;
  padding: 0 1.5rem;
  text-align: center;
}
.footer-navigation {
  margin-bottom: 1.5rem;
}
.nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
}
.nav-item {
  margin: 0;
}
.nav-item::before {
  content: none;
}
.nav-link {
  display: inline-block;
  padding: 0.6rem 1.2rem;
  background: #74b9ff;
  color: #fff;
  border-radius: 20px;
  font-weight: bold;
  transition: all 0.3s ease;
  box-shadow: 0 3px 10px rgba(116, 185, 255, 0.3);
}
.nav-link:hover {
  background: #0984e3;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(116, 185, 255, 0.5);
  text-decoration: none;
}
.footer-meta {
  font-size: 0.9rem;
  color: #636e72;
}
.sitemap-link {
  margin-bottom: 0.5rem;
}
.link-text {
  color: #0984e3;
  text-decoration: underline;
}
.copyright-notice {
  margin-top: 0.5rem;
}
.brand-link {
  color: #2d3436;
  font-weight: bold;
}
/* ========================================
   レスポンシブ調整
======================================== */
@media (min-width: 768px) {
  html {
    font-size: 17px;
  }
  
  .header-wrap,
  .main-content,
  .footer-wrap {
    max-width: 700px;
  }
  
  .primary-section {
    padding: 3rem 2.5rem;
  }
  
  h2 {
    font-size: 1.8rem;
  }
  
  h3 {
    font-size: 1.4rem;
  }
}
@media (max-width: 480px) {
  .brand-logo {
    font-size: 1.3rem;
  }
  
  .section-heading {
    font-size: 1.5rem;
  }
  
  h2 {
    font-size: 1.4rem;
    padding: 0.8rem 1rem;
  }
  
  h3 {
    font-size: 1.2rem;
    padding: 0.6rem 0.8rem;
  }
  
  h4 {
    font-size: 1rem;
    padding: 0.5rem 0.8rem;
  }
  
  .primary-section {
    padding: 1.5rem 1rem;
    border-radius: 20px;
  }
  
  ul, ol {
    padding-left: 1.5rem;
  }
}