@charset "UTF-8";

/* =========================================
   基本設定 & 変数 (Theme: Blue Sky / Sakura)
   Based on style copy.css
   ========================================= */
:root {
  --color-primary: #ff85a2; /* 優しい桜ピンク */
  --color-accent: #ffffff; /* アクセント（白） */
  --color-sky: #a0d8ef; /* 爽やかな青空の色 */
  --color-text-base: #444444; /* 基本のテキスト色（濃いグレー） */
  --color-card-bg: rgba(255, 255, 255, 0.9); /* 明るい半透明のカード背景 */
  --color-toc-bg: rgba(240, 248, 255, 0.95); /* 目次の背景（ごく薄い青） */
  --color-toc-border: #87ceeb; /* 目次のボーダー（スカイブルー） */
  --color-warn: #e74c3c;
}

html {
  font-size: 110%;
}

body {
  font-family: "Noto Sans JP", sans-serif;
  background-color: var(--color-sky);
  color: var(--color-text-base);
  line-height: 1.8;
  overflow-x: hidden;
  margin: 0;
  padding: 0;
}

/* =========================================
   桜アニメーション (Common)
   ========================================= */
#sakura-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 999;
}

.petal {
  position: absolute;
  background-color: var(--color-primary);
  opacity: 0;
  pointer-events: none;
  width: 15px;
  height: 20px;
  border-radius: 15% 80% 0 80%;
  box-shadow: inset 2px 2px 5px rgba(255, 255, 255, 0.8);
}

.petal.style-1 {
  animation: fall-continuous-1 linear infinite;
}
.petal.style-2 {
  animation: fall-continuous-2 linear infinite;
  background-color: #ffd1dc;
}
.petal.style-3 {
  animation: fall-continuous-3 linear infinite;
}

.pos-1 {
  left: 10%;
  animation-duration: 10s;
}
.pos-2 {
  left: 30%;
  animation-duration: 12s;
  animation-delay: 2s;
}
.pos-3 {
  left: 70%;
  animation-duration: 8s;
  animation-delay: 1s;
}
.pos-4 {
  left: 90%;
  animation-duration: 11s;
  animation-delay: 3s;
}

@keyframes fall-continuous-1 {
  0% {
    opacity: 0;
    transform: translate3d(0, -10vh, 0) rotate(0deg);
  }
  10% {
    opacity: 0.9;
  }
  100% {
    opacity: 0;
    transform: translate3d(10vw, 110vh, 0) rotate(360deg);
  }
}
@keyframes fall-continuous-2 {
  0% {
    opacity: 0;
    transform: translate3d(0, -10vh, 0) rotateX(0deg) rotateZ(0deg);
  }
  10% {
    opacity: 0.8;
  }
  100% {
    opacity: 0;
    transform: translate3d(-5vw, 110vh, 0) rotateX(720deg) rotateZ(360deg);
  }
}
@keyframes fall-continuous-3 {
  0% {
    opacity: 0;
    transform: translate3d(0, -10vh, 0) rotate(0deg);
  }
  10% {
    opacity: 0.8;
  }
  100% {
    opacity: 0;
    transform: translate3d(25vw, 110vh, 0) rotate(90deg);
  }
}

/* =========================================
   ヘッダー・ヒーローセクション
   ========================================= */
.header-hero {
  text-align: center;
  padding: 3vh 20px 2vh;
  background: linear-gradient(180deg, #ffffff 0%, var(--color-sky) 80%);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  position: relative;
  min-height: 65vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.header-hero h1 {
  font-family: "Shippori Mincho", serif;
  font-size: clamp(3rem, 10vw, 8rem);
  color: var(--color-primary);
  text-shadow: 0 2px 5px rgba(255, 133, 162, 0.3);
  margin: 0 0 1rem;
  letter-spacing: 3px;
  line-height: 1.1;
  width: 100%;
}

.header-hero h2 {
  font-size: clamp(1rem, 4vw, 1.5rem);
  color: #555;
  font-weight: 300;
  margin: 0;
}

.header-hero img {
  max-height: 60vh;
  max-width: 90%;
  height: auto;
  border-radius: 10px;
  margin-top: 1rem;
  box-shadow: 0 10px 30px rgba(255, 133, 162, 0.3);
  filter: brightness(1.05);
}

/* =========================================
   ナビゲーション (TOC)
   ========================================= */
#toc-nav {
  background-color: var(--color-toc-bg);
  border-bottom: 2px solid var(--color-toc-border);
  padding: 10px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  position: sticky;
  top: 0;
  z-index: 1000;
}

#toc-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

#toc-nav a {
  color: var(--color-text-base);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.9em;
  padding: 5px 8px;
  border-radius: 5px;
  transition: all 0.2s;
  white-space: nowrap;
}

#toc-nav a:hover {
  background-color: var(--color-primary);
  color: white;
}

/* =========================================
   メインレイアウト & 共通スタイル
   ========================================= */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
}

.title-section {
  font-family: "Shippori Mincho", serif;
  font-size: 2em;
  color: var(--color-text-base);
  border-bottom: 3px solid var(--color-primary);
  padding-bottom: 10px;
  margin: 40px 0 30px;
  text-align: center;
  text-shadow: none;
  scroll-margin-top: 80px;
}

.card-content {
  background-color: var(--color-card-bg);
  padding: 25px;
  border-radius: 15px;
  margin-bottom: 30px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.8);
  overflow-wrap: break-word;
}

#card-content-second {
  margin-top: 3rem;
}

.card-content h3 {
  font-size: 1.4em;
  color: var(--color-text-base);
  border-left: 5px solid var(--color-primary);
  padding-left: 15px;
  margin: 0 0 15px;
}

.card-content h4 {
  color: #666;
  margin-top: 25px;
  border-bottom: 1px dotted rgba(255, 133, 162, 0.5);
  padding-bottom: 5px;
}

.card-content h5 {
  color: var(--color-text-base);
  font-size: 1.1em;
  margin: 0 0 10px;
}

a {
  color: #0077cc;
  text-decoration: none;
  transition: color 0.3s;
}

a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.link-appeal {
  display: inline-block;
  font-weight: 700;
  color: #fff !important;
  background-color: var(--color-primary);
  padding: 8px 15px;
  border-radius: 5px;
  border: 1px solid var(--color-primary);
  box-shadow: 0 2px 5px rgba(255, 105, 180, 0.3);
  text-decoration: none !important;
  transition: all 0.3s ease;
}

.link-appeal:hover {
  background-color: #ff6b8e;
  transform: translateY(-2px);
  box-shadow: 0 5px 10px rgba(255, 105, 180, 0.5);
}

ul {
  list-style: none;
  padding-left: 0;
}

ul li {
  padding-left: 1.2em;
  position: relative;
  margin-bottom: 8px;
}

ul li::before {
  content: "◇";
  color: var(--color-primary);
  font-weight: bold;
  position: absolute;
  left: 0;
}

strong {
  color: var(--color-primary);
}

.text-warn {
  color: var(--color-warn);
  font-weight: bold;
}

.underline-warn {
  text-decoration: underline;
  text-decoration-color: var(--color-warn);
}

.box-appeal {
  text-align: center;
  margin-top: 30px;
  padding: 20px;
  border: 2px dashed var(--color-primary);
  border-radius: 10px;
  color: var(--color-text-base);
  background-color: rgba(255, 133, 162, 0.1);
  font-size: 1rem;
}

/* =========================================
   レイアウト: 概要 & アクセス
   ========================================= */
.layout-split {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  align-items: flex-start;
}

.layout-split > div {
  flex: 1;
}

.overview-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  height: 100%;
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(255, 133, 162, 0.3);
  border-radius: 10px;
  padding: 2rem;
  box-sizing: border-box;
}

.overview-text ul {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.overview-text li {
  font-size: 1.15rem;
  border-bottom: 1px dashed rgba(0, 0, 0, 0.1);
  padding-bottom: 0.5rem;
}

#section-overview .layout-split > div:first-child {
  min-width: 300px;
}
#section-overview .map-container-reset {
  flex: 0 0 400px;
}
#section-overview iframe {
  width: 100%;
  height: 400px;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.access-map-container {
  flex: 0 0 300px;
}
.access-map-container iframe {
  width: 100%;
  height: 300px;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.info-box {
  background-color: rgba(255, 255, 255, 0.6);
  padding: 15px;
  border-radius: 8px;
  border-left: 3px solid var(--color-primary);
}

/* =========================================
   持ち物リスト (Participation Grid)
   ========================================= */
.participation-grid {
  display: flex;
  gap: 20px;
  margin-top: 15px;
  flex-wrap: wrap;
}

.item-box {
  flex: 1;
  min-width: 280px;
  background: #f9f9f9;
  padding: 15px;
  border-radius: 10px;
  border: 1px solid #eee;
}

.item-box-required {
  border: 2px solid #ff4444;
  background: #fff5f5;
}

.item-box-recommended {
  border: 2px solid #ffcc00;
  background: #fffff5;
}

.item-box-yellow {
  border-top: 4px solid #ffd32a;
  background: linear-gradient(
    180deg,
    rgba(255, 211, 42, 0.1) 0%,
    rgba(255, 255, 255, 0.7) 100%
  );
}
.item-box-yellow h5 {
  color: #f39c12;
  border-bottom: 1px dashed rgba(255, 211, 42, 0.3);
  padding-bottom: 5px;
}

.item-box-blue {
  border-top: 4px solid #0fb9b1;
  background: linear-gradient(
    180deg,
    rgba(15, 185, 177, 0.1) 0%,
    rgba(255, 255, 255, 0.7) 100%
  );
}
.item-box-blue h5 {
  color: #008c8c;
  border-bottom: 1px dashed rgba(15, 185, 177, 0.3);
  padding-bottom: 5px;
}

.item-box-purple {
  border-top: 4px solid #a55eea;
  background: linear-gradient(
    180deg,
    rgba(165, 94, 234, 0.1) 0%,
    rgba(255, 255, 255, 0.7) 100%
  );
}
.item-box-purple h5 {
  color: #8e44ad;
  border-bottom: 1px dashed rgba(165, 94, 234, 0.3);
  padding-bottom: 5px;
}

/* =========================================
   企画カード (Plan Split)
   ========================================= */
.plan-split-container {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  margin: 20px 0 30px;
}

.plan-card-wrapper {
  flex: 1 1 calc(33.333% - 20px);
  min-width: 300px;
  position: relative;
  padding: 0;
  height: 0;
  padding-bottom: calc(33.333% - 20px);
}

.plan-card-square {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  padding: 25px;
  background-color: var(--color-card-bg);
  border-radius: 15px;
  overflow-y: auto;
  box-sizing: border-box;
}

.plan-style-1 {
  --plan-color: #ff6b81;
}
.plan-style-2 {
  --plan-color: #48dbfb;
}
.plan-style-3 {
  --plan-color: #2ecc71;
}
.plan-style-4 {
  --plan-color: #feca57;
}
.plan-style-5 {
  --plan-color: #a29bfe;
}

.plan-colored {
  border: 2px solid var(--plan-color) !important;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1),
    inset 0 0 20px rgba(255, 255, 255, 0.5) !important;
  transition: transform 0.3s;
  background-color: #fff !important;
}

.plan-colored:hover {
  transform: translateY(-5px);
}

.plan-colored h3 {
  border-left-color: var(--plan-color) !important;
  color: var(--plan-color) !important;
  text-shadow: none;
}

/* =========================================
   Details / Summary / Sub-entries
   ========================================= */
details {
  border: 1px solid rgba(255, 133, 162, 0.3);
  border-radius: 8px;
  padding: 10px;
  margin-bottom: 20px;
  background-color: rgba(255, 255, 255, 0.6);
  transition: background-color 0.3s;
}

details[open] {
  background-color: var(--color-card-bg);
}

summary {
  font-size: 1.2em;
  font-weight: bold;
  color: var(--color-text-base);
  cursor: pointer;
  list-style: none;
  padding-left: 25px;
  position: relative;
}

summary::before {
  content: "▶";
  color: var(--color-primary);
  font-size: 0.8em;
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  transition: transform 0.3s;
}

details[open] summary::before {
  content: "▼";
  transform: translateY(-50%) rotate(0deg);
}

.sub-entry-block {
  background-color: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(0, 0, 0, 0.05);
  border-left: 4px solid var(--color-primary);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 30px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.sub-entry-title {
  background: linear-gradient(90deg, rgba(255, 133, 162, 0.2), transparent);
  padding: 8px 15px;
  border-radius: 4px;
  margin: 0 0 1.5rem !important;
  border-bottom: none !important;
  font-size: 1.3em;
  font-weight: bold;
  color: var(--color-text-base);
  display: inline-block;
  width: 100%;
  box-sizing: border-box;
}

.sub-entry-block ul {
  background: rgba(0, 0, 0, 0.02);
  padding: 15px 15px 15px 25px;
  border-radius: 5px;
}

.sub-entry-block p {
  margin-bottom: 1rem;
}

/* =========================================
   挨拶エリア (Day Theme Adaptation)
   ========================================= */
.greeting-box {
  margin: 40px auto 60px;
  max-width: 800px;
  text-align: center;
  font-family: "Shippori Mincho", serif;
  padding: 40px 20px;
  background: radial-gradient(
    circle,
    rgba(255, 255, 255, 0.9) 0%,
    rgba(255, 240, 245, 0.6) 70%
  );
  border-top: 1px solid rgba(255, 105, 180, 0.3);
  border-bottom: 1px solid rgba(255, 105, 180, 0.3);
  position: relative;
  border-radius: 20px;
}

.greeting-box::before,
.greeting-box::after {
  content: "❀";
  display: block;
  color: var(--color-primary);
  font-size: 1.5rem;
  opacity: 0.8;
  margin-bottom: 1rem;
  text-shadow: none;
}

.greeting-box::after {
  margin-bottom: 0;
  margin-top: 1rem;
}

.greeting-main {
  font-size: 1.25rem;
  font-weight: 800;
  line-height: 2;
  color: var(--color-text-base);
  margin-bottom: 2rem;
  text-shadow: none;
}

.greeting-sub {
  font-size: 1.1rem;
  line-height: 1.8;
  color: #555;
  margin-bottom: 3rem;
}

.greeting-footer {
  display: inline-block;
  text-align: right;
  width: 100%;
  max-width: 500px;
  border-top: 1px dotted rgba(255, 105, 180, 0.5);
  padding-top: 15px;
}

.greeting-comment {
  font-size: 0.95rem;
  font-style: italic;
  color: var(--color-primary);
  margin-bottom: 5px;
}

.greeting-sign {
  font-size: 1.1rem;
  font-weight: bold;
  color: var(--color-text-base);
}

/* =========================================
   配送・返品ガイド (Day Theme Adaptation)
   ========================================= */
.shipping-guide-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  justify-content: center;
  margin: 20px 0 30px;
}

.btn-guide {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 300px;
  padding: 15px 20px;
  border-radius: 10px;
  font-weight: bold;
  text-decoration: none;
  color: #fff;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.btn-guide:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
  color: #fff;
}

.btn-yamato {
  background: linear-gradient(135deg, #2d2d2d 0%, #1a1a1a 100%);
  border-left: 5px solid #fc0;
}

.btn-sagawa {
  background: linear-gradient(135deg, #0055aa 0%, #003366 100%);
  border-left: 5px solid #fff;
}

.return-info-box {
  background: rgba(255, 255, 255, 0.95);
  color: #333;
  border: 3px solid #ff69b4;
  border-radius: 12px;
  padding: 20px;
  margin-top: 25px;
  box-shadow: 0 0 15px rgba(255, 105, 180, 0.1);
}

.return-info-title {
  color: #c71585;
  font-size: 1.2em;
  font-weight: bold;
  border-bottom: 2px dashed #ff69b4;
  padding-bottom: 5px;
  margin-bottom: 15px;
  display: block;
}

.contact-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-item {
  background-color: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 8px;
  padding: 20px;
  transition: background-color 0.3s;
}

.contact-item:hover {
  background-color: rgba(255, 255, 255, 0.9);
}

.contact-item h5 {
  color: var(--color-primary);
  font-size: 1.1em;
  margin-top: 0;
  border-bottom: 1px dashed rgba(255, 182, 193, 0.5);
  padding-bottom: 8px;
  margin-bottom: 15px;
}

/* =========================================
   フッター・SNS (Day Theme)
   ========================================= */
footer {
  text-align: center;
  padding: 30px;
  color: #666;
  border-top: 1px solid rgba(0, 0, 0, 0.1);
  margin-top: 50px;
  background-color: rgba(255, 255, 255, 0.5);
}

.footer-sns {
  margin-bottom: 2rem;
  padding: 0 10px;
}

.footer-sns h3 {
  font-family: "Shippori Mincho", serif;
  font-size: 1.2rem;
  color: var(--color-primary);
  margin-bottom: 1.5rem;
  text-shadow: none;
}

.sns-links {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.btn-sns {
  display: inline-block;
  min-width: 160px;
  padding: 12px 25px;
  border: 1px solid var(--color-primary);
  border-radius: 50px;
  background: rgba(255, 255, 255, 0.7);
  color: var(--color-text-base);
  font-weight: bold;
  text-decoration: none;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.btn-sns:hover {
  background-color: var(--color-primary);
  color: #fff;
  box-shadow: 0 5px 15px rgba(255, 133, 162, 0.4);
  transform: translateY(-3px);
  text-decoration: none;
  border-color: transparent;
}

.copyright {
  margin-top: 20px;
  font-size: 0.9rem;
  opacity: 0.7;
}

.sns-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
}

.sns-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  background-color: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(0, 0, 0, 0.05);
  border-radius: 12px;
  padding: 20px;
  width: 160px;
  text-decoration: none;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  color: var(--color-text-base);
}

.sns-item:hover {
  transform: translateY(-5px);
  text-decoration: none;
}

.sns-img-box {
  width: 60px;
  height: 60px;
  margin-bottom: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(0, 0, 0, 0.03);
  border-radius: 50%;
  padding: 10px;
}

.sns-img-box img {
  width: 90%;
  height: 90%;
  object-fit: contain;
}

.sns-label {
  font-weight: bold;
  color: var(--color-text-base);
  font-size: 1.1em;
  margin-bottom: 5px;
  transition: color 0.3s;
}

.sns-id {
  font-size: 0.85em;
  color: #888;
  word-break: break-all;
}

/* SNS Hover Colors */
.item-x:hover {
  border-color: #000;
  background-color: #000;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}
.item-discord:hover {
  border-color: #5865f2;
  background-color: #5865f2;
  box-shadow: 0 5px 15px rgba(88, 101, 242, 0.3);
}
.item-youtube:hover {
  border-color: #f00;
  background-color: #f00;
  box-shadow: 0 5px 15px rgba(255, 0, 0, 0.3);
}
.item-web:hover {
  border-color: #ffa500;
  background-color: #ffa500;
  box-shadow: 0 5px 15px rgba(255, 165, 0, 0.3);
}
.item-mail:hover {
  border-color: #00bfff;
  background-color: #00bfff;
  box-shadow: 0 5px 15px rgba(0, 191, 255, 0.3);
}

.item-x:hover .sns-label,
.item-x:hover .sns-id,
.item-discord:hover .sns-label,
.item-discord:hover .sns-id,
.item-youtube:hover .sns-label,
.item-youtube:hover .sns-id,
.item-web:hover .sns-label,
.item-web:hover .sns-id,
.item-mail:hover .sns-label,
.item-mail:hover .sns-id {
  color: #fff;
}

/* =========================================
   Yamato Specific Styles (Extracted from HTML)
   ========================================= */
.header-short {
  min-height: 15vh;
}
.text-yamato {
  color: #eaaf19;
}
.header-sub {
  color: #666;
  text-shadow: none;
}
.main-content {
  margin-top: 40px;
}
.critical-alert {
  background: #fff0f0;
  border: 3px solid #ff4444;
  color: #d32f2f;
  padding: 20px;
  border-radius: 10px;
  text-align: center;
  margin-bottom: 40px;
  box-shadow: 0 4px 15px rgba(255, 0, 0, 0.1);
  animation: pulse-border 2s infinite;
}
.critical-alert h2 {
  margin: 0 0 10px 0;
  font-size: 1.8rem;
  font-weight: 900;
  color: #d32f2f;
  border-bottom: 2px dashed #ff4444;
  display: inline-block;
  padding-bottom: 5px;
}
.critical-alert p {
  font-size: 1.1rem;
  font-weight: bold;
  margin: 0;
}
@keyframes pulse-border {
  0% {
    box-shadow: 0 0 5px rgba(255, 0, 0, 0.1);
  }
  50% {
    box-shadow: 0 0 15px rgba(255, 0, 0, 0.2);
  }
  100% {
    box-shadow: 0 0 5px rgba(255, 0, 0, 0.1);
  }
}
.text-alert-bg {
  font-size: 1.5em;
  background: #ffffaa;
  padding: 0 5px;
  color: #d32f2f;
}
.text-note {
  margin-top: 10px;
  font-size: 0.9rem;
}
.step-card {
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(255, 105, 180, 0.3);
  border-radius: 15px;
  padding: 25px;
  margin-bottom: 30px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
  color: #444;
}
.step-number {
  font-family: "Shippori Mincho", serif;
  font-size: 4rem;
  color: rgba(255, 105, 180, 0.15);
  position: absolute;
  top: -10px;
  right: 10px;
  font-weight: bold;
  pointer-events: none;
}
.step-header {
  display: flex;
  align-items: center;
  margin-bottom: 15px;
  border-bottom: 2px solid var(--color-primary);
  padding-bottom: 10px;
}
.step-badge {
  background: var(--color-primary);
  color: #fff;
  padding: 5px 15px;
  border-radius: 20px;
  font-weight: bold;
  margin-right: 15px;
  font-size: 1.1em;
  white-space: nowrap;
  box-shadow: 0 2px 5px rgba(255, 105, 180, 0.4);
}
.step-title {
  font-size: 1.3em;
  font-weight: bold;
  color: #333;
  margin: 0;
  line-height: 1.4;
}
.badge-step0 {
  background: #e60012;
}
.text-danger-bold {
  color: #e60012;
  font-weight: bold;
}
.center-btn-area {
  text-align: center;
  margin-top: 15px;
}
.btn-external {
  display: inline-block;
  margin-top: 10px;
  padding: 10px 25px;
  background-color: #555;
  color: #fff;
  border-radius: 50px;
  font-size: 0.9em;
  text-decoration: none;
  transition: all 0.3s;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
}
.btn-external:hover {
  background-color: var(--color-primary);
  text-decoration: none;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 5px 10px rgba(255, 105, 180, 0.4);
}
.btn-red {
  background: #e60012;
  font-weight: bold;
}
.step-card-recommend {
  border-color: #ffcc00;
  background: rgba(255, 255, 255, 0.95);
}
.step-header-recommend {
  border-bottom-color: #ffcc00;
}
.badge-recommend {
  background: #ffcc00;
  color: #333;
}
.title-recommend {
  color: #b8860b;
}
.service-compact-hero {
  background: #fffff0;
  border-top: 5px solid #ffcc00;
  padding: 20px;
  border-radius: 10px;
  color: #333;
  margin-top: 15px;
  border-left: 1px solid #eee;
  border-right: 1px solid #eee;
  border-bottom: 1px solid #eee;
}
.compact-title {
  font-size: 1.4em;
  font-weight: bold;
  color: #333;
  margin-bottom: 15px;
  display: flex;
  align-items: center;
}
.compact-title::before {
  content: "★";
  color: #ffcc00;
  margin-right: 8px;
  font-size: 1.2em;
}
.compact-desc {
  font-size: 0.95em;
  margin-bottom: 10px;
}
.text-danger {
  color: #e60012;
}
.box-types {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
  margin: 15px 0;
}
.box-type-card {
  flex: 1;
  min-width: 200px;
  max-width: 100%;
  box-sizing: border-box;
  background: #fff;
  border: 2px solid #f0f0f0;
  border-radius: 8px;
  padding: 15px;
  transition: transform 0.2s;
  color: #333;
}
.box-type-card:hover {
  transform: translateY(-2px);
  border-color: #ffcc00;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}
.box-type-card strong {
  display: block;
  color: #d68a00;
  font-size: 1.1em;
  margin-bottom: 5px;
  border-bottom: 1px solid #eee;
  padding-bottom: 5px;
}
.box-desc {
  font-size: 0.9em;
  margin: 0;
}
.center-btn-area-sm {
  text-align: center;
  margin-top: 10px;
}
.btn-dark {
  background-color: #333;
}
.mt-20 {
  margin-top: 20px;
}
.item-title-green {
  margin-top: 0;
  color: #27ae60;
  font-size: 1.1em;
  font-weight: bold;
  margin-bottom: 10px;
}
.text-sm {
  font-size: 0.9em;
}
.text-center {
  text-align: center;
}
.btn-green {
  background-color: #27ae60;
}
.item-title-dark {
  margin-top: 0;
  color: #444;
  font-size: 1.1em;
  font-weight: bold;
  margin-bottom: 10px;
}
.text-warn-bold {
  color: #ff4444;
  font-weight: bold;
}
.address-box {
  background: #f0f8ff;
  color: #333;
  padding: 20px;
  border-radius: 8px;
  margin: 15px 0;
  font-family: sans-serif;
  position: relative;
  border: 2px dashed #87ceeb;
}
.address-label {
  font-size: 0.8em;
  color: #666;
  margin-bottom: 5px;
}
.address-val {
  font-size: 1.1em;
  color: #000;
}
.address-note {
  font-size: 0.8em;
  color: #666;
  display: block;
  margin-top: 5px;
}
.item-title-red {
  color: #ff4757;
  margin-top: 0;
  font-size: 1.1em;
  font-weight: bold;
  margin-bottom: 10px;
  border-bottom: 1px dashed rgba(255, 71, 87, 0.5);
  padding-bottom: 5px;
}
.text-md {
  font-size: 1.1em;
}
.highlight-date {
  color: #e60012;
  font-weight: bold;
  font-size: 1.2em;
  background: #fff;
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid #ffcccc;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}
.text-sm-gray {
  font-size: 0.9em;
  margin-bottom: 0;
  color: #555;
}
.flex-row {
  display: flex;
}
.item-box-center {
  flex: 1;
  text-align: center;
}
.search-title {
  color: #d63384;
  margin-bottom: 15px;
  border-bottom: none;
  font-size: 1.1em;
  font-weight: bold;
}
.search-desc {
  margin-bottom: 20px;
}
.btn-pink {
  background-color: #d63384;
}
.center-warn {
  text-align: center;
  margin-top: 15px;
  color: #ff4444;
  font-weight: bold;
}
.return-card {
  background: #fff;
  border: 3px solid var(--color-primary);
  border-radius: 15px;
  padding: 25px;
  margin-bottom: 30px;
  color: #333;
  box-shadow: 0 5px 20px rgba(255, 105, 180, 0.2);
}
.return-header {
  text-align: center;
  border-bottom: 2px dashed var(--color-primary);
  padding-bottom: 15px;
  margin-bottom: 20px;
}
.return-header h3 {
  color: #c71585;
  font-size: 1.6em;
  margin: 0;
}
.return-desc {
  margin-bottom: 0;
  font-weight: bold;
  color: #555;
}
.return-options {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}
.return-option {
  flex: 1;
  min-width: 280px;
  background: #fff0f5;
  padding: 15px;
  border-radius: 10px;
  border: 1px solid rgba(255, 105, 180, 0.2);
}
.return-option h4 {
  color: #c71585;
  margin-top: 0;
  border-left: 5px solid var(--color-primary);
  padding-left: 10px;
}
.text-black {
  color: #000;
}
.text-red-char {
  color: red;
}
.text-danger-lg {
  color: #d32f2f;
  font-size: 1.1em;
}
.text-sm-blue {
  font-size: 0.9em;
  color: #0055aa;
}
.btn-back {
  display: inline-block;
  margin-top: 30px;
  padding: 12px 40px;
  background: rgba(255, 255, 255, 0.8);
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
  border-radius: 50px;
  font-weight: bold;
  transition: all 0.3s;
}
.btn-back:hover {
  background: var(--color-primary);
  color: #fff;
  text-decoration: none;
  box-shadow: 0 0 15px rgba(255, 105, 180, 0.5);
}
.footer-margin {
  margin-top: 40px;
}
.footer-contact {
  margin-bottom: 20px;
}
.contact-label {
  margin-bottom: 5px;
  font-weight: bold;
}
.contact-val {
  margin: 0;
}
.contact-link {
  color: #c71585;
  text-decoration: underline;
}

/* レスポンシブ (Yamato Specific) */
@media screen and (max-width: 768px) {
  html {
    font-size: 85%;
  }
  .container {
    padding: 0 15px;
  }
  .header-short {
    min-height: auto;
    padding: 2vh 10px;
  }
  .layout-split {
    flex-direction: column;
  }
  .participation-grid {
    flex-direction: column;
  }
  .item-box {
    width: 100%;
    box-sizing: border-box;
  }
  .return-options {
    flex-direction: column; /* 修正：縦に並べる */
    gap: 15px;
  }
  .return-option {
    min-width: 0; /* 修正：最小幅を解除 */
    width: 100%; /* 修正：横幅いっぱい */
    box-sizing: border-box; /* 修正：パディングを含める */
  }
  .plan-split-container {
    display: block;
  }
  .plan-card-wrapper {
    height: auto;
    padding-bottom: 0;
    margin-bottom: 20px;
  }
  .plan-card-square {
    position: static;
    width: auto;
    height: auto;
    overflow-y: visible;
  }
  #sakura-bg {
    display: none;
  }
  .card-content {
    padding: 15px;
  }
}