/* 基本スタイル */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary-color: #0054A9;
  --accent-color1: #FE7A36;
  --accent-color2: #2AAA8A;
}

/* スクロールスムージング */
html {
  scroll-behavior: smooth;
}

body {
  font-family: 'M PLUS 1p', sans-serif;
  color: #333;
  line-height: 1.6;
  background-color: #f8f9fa;
  padding-top: 80px;
  overflow-x: hidden;
}

/* 全てのリンクの基本設定 */
a {
  text-decoration: none;
  color: inherit;
}

a:visited {
  color: inherit;
}

/* フェードイン アニメーション */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideInFromLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInFromRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* アニメーション適用クラス */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease-out;
}

.animate-on-scroll.animate {
  opacity: 1;
  transform: translateY(0);
}

/* ヘッダー - 改良版 */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.95);
  z-index: 1000;
  border-bottom: 1px solid rgba(0, 84, 169, 0.1);
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 15px 20px;
  height: 80px;
}

.logo-with-supported {
  display: flex;
  align-items: center;
  gap: 10px;
  animation: slideInFromLeft 0.8s ease-out;
}

.supported-by {
  font-size: 15px;
  color: #666;
  font-weight: 500;
}

.header-logo-image {
  height: 20px;
  width: auto;
  transition: transform 0.3s ease;
}

.header-logo-image:hover {
  transform: scale(1.05);
}

.header-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 30px;
}

.nav-link {
  text-decoration: none;
  color: #333;
  font-weight: 500;
  font-size: 15px;
  padding: 8px 12px;
  border-radius: 6px;
  border-bottom: 2px solid transparent;
  transition: all 0.3s ease;
  position: relative;
}

.nav-link:visited {
  color: #333;
}

.nav-link:hover {
  color: var(--primary-color);
  background-color: rgba(0, 84, 169, 0.05);
  transform: translateY(-2px);
}

.nav-link:hover:visited {
  color: var(--primary-color);
}

/* モバイルメニューボタン */
.mobile-menu-button {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 30px;
  height: 30px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
  transition: transform 0.3s ease;
}

.mobile-menu-button:hover {
  transform: scale(1.1);
}

.hamburger-line {
  width: 100%;
  height: 3px;
  background-color: var(--primary-color);
  transition: all 0.3s ease;
  border-radius: 2px;
}

.mobile-menu-button.active .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

.mobile-menu-button.active .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-menu-button.active .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(8px, -8px);
}

/* モバイルメニュー */
.mobile-menu {
  display: none;
  position: fixed;
  top: 80px;
  left: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 84, 169, 0.1);
  z-index: 999;
  opacity: 0;
  transform: translateY(-100%);
  transition: all 0.3s ease;
}

.mobile-menu.active {
  opacity: 1;
  transform: translateY(0);
}

.mobile-nav-list {
  list-style: none;
  padding: 20px;
  margin: 0;
}

.mobile-nav-link {
  display: block;
  padding: 15px 20px;
  text-decoration: none;
  color: #333;
  font-weight: 500;
  border-radius: 8px;
  transition: all 0.3s ease;
  margin-bottom: 5px;
}

.mobile-nav-link:visited {
  color: #333;
}

.mobile-nav-link:hover,
.mobile-nav-link:active {
  background-color: rgba(0, 84, 169, 0.1);
  color: var(--primary-color);
  transform: translateX(10px);
}

.mobile-nav-link:hover:visited,
.mobile-nav-link:active:visited {
  color: var(--primary-color);
}

/* コンテナレイアウト */
.container {
  display: flex;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0;
  gap: 30px;
  animation: fadeIn 0.8s ease-out;
}

.main-content {
  flex: 1;
  max-width: 850px;
}

/* セクション基本設定 */
section {
  margin-bottom: 30px;
}

.section-inner {
  background-color: white;
  padding: 40px;
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
}

.section-inner:hover {
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
  transform: translateY(-2px);
}

.section-title {
  font-family: 'IBM Plex Sans JP', sans-serif;
  font-size: 28px;
  margin-bottom: 30px;
  text-align: center;
  color: var(--primary-color);
  font-weight: 700;
  position: relative;
  padding-bottom: 15px;
  animation: fadeInUp 0.6s ease-out;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: var(--primary-color);
  animation: fadeIn 0.8s ease-out 0.3s both;
}

/* メインビジュアル */
.hero {
  background: linear-gradient(to right, rgba(0, 84, 169, 0.8), rgba(0, 84, 169, 0.7));
  color: white;
  padding: 40px 30px;
  text-align: center;
  position: relative;
  width: 100vw;
  margin-left: calc(-50vw + 50%);
  margin-bottom: 30px;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.2;
  animation: fadeIn 1.5s ease-out;
}

.hero-content {
  max-width: 600px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
  padding: 20px;
  animation: fadeInUp 1s ease-out 0.3s both;
}

.hero-inner {
  max-width: 1200px;
  margin: -80px auto 0;
  position: relative;
  z-index: 2;
  padding: 20px;
  animation: fadeInUp 1s ease-out 0.6s both;
}

.logo-container {
  margin-bottom: 40px;
  position: relative;
  display: inline-block;
  transform: translateY(15px);
  animation: fadeInUp 1.2s ease-out 0.2s both;
}

.logo-bubble {
  position: absolute;
  top: -50px;
  left: -130px;
  z-index: 4;
  max-width: 160px;
  transform: rotate(-10deg);
  animation: fadeInUp 1s ease-out 0.8s both;
}

.bubble-image {
  width: 100%;
  height: auto;
  filter: brightness(0) invert(1);
  transition: transform 0.3s ease;
}

.bubble-image:hover {
  transform: scale(1.1) rotate(-5deg);
}

.logo {
  max-width: 350px;
  height: auto;
  filter: brightness(0) invert(1);
  transition: transform 0.3s ease;
}

.logo:hover {
  transform: scale(1.05);
}

.intro-subtitle {
  font-size: 22px;
  font-weight: 700;
  margin: 20px 0;
  line-height: 1.5;
  animation: fadeInUp 1s ease-out 0.9s both;
}

.intro-description {
  font-size: 18px;
  line-height: 1.7;
  background-color: rgba(0, 0, 0, 0.2);
  padding: 20px 25px;
  border-radius: 16px;
  margin: 20px auto;
  font-weight: 500;
  max-width: 61%;
  animation: fadeInUp 1s ease-out 1.2s both;
  transition: all 0.3s ease;
}

.intro-description:hover {
  background-color: rgba(0, 0, 0, 0.3);
  transform: translateY(-3px);
}

/* 問題提起セクション */
.problems {
  padding: 20px 0;
  margin-top: -20px;
}

.problem-cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 25px;
}

.problem-card-vertical {
  background: white;
  padding: 30px 25px;
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  text-align: center;
  border-left: 4px solid var(--accent-color1);
  transition: all 0.3s ease;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.6s ease-out forwards;
}

.problem-card-vertical:nth-child(1) {
  animation-delay: 0.1s;
}

.problem-card-vertical:nth-child(2) {
  animation-delay: 0.2s;
  border-left-color: var(--accent-color2);
}

.problem-card-vertical:nth-child(3) {
  animation-delay: 0.3s;
  border-left-color: var(--primary-color);
}

.problem-card-vertical:nth-child(4) {
  animation-delay: 0.4s;
  border-left-color: var(--accent-color1);
}

.problem-card-vertical:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.problem-card-icon {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.problem-card-vertical:hover .problem-card-icon {
  transform: scale(1.1) rotate(5deg);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.problem-icon-image {
  width: 60px;
  height: 60px;
  object-fit: contain;
  transition: transform 0.3s ease;
}

.problem-title {
  font-family: 'IBM Plex Sans JP', sans-serif;
  font-size: 18px;
  color: var(--primary-color);
  font-weight: 600;
  margin-bottom: 15px;
  transition: color 0.3s ease;
}

.problem-card-vertical:hover .problem-title {
  color: var(--accent-color1);
}

.problem-description {
  font-size: 14px;
  line-height: 1.6;
  color: #666;
  transition: color 0.3s ease;
}

.problem-card-vertical:hover .problem-description {
  color: #333;
}

/* ビジネスコミュニティとは？ */
.about {
  padding: 20px 0;
}

.about-header-image {
  width: 80%;
  margin: 0 auto 30px;
}

.about-image {
  width: 100%;
  height: 300px;
  object-fit: cover;
  border-radius: 8px;
}

.about-text p {
  margin-bottom: 20px;
  font-size: 16px;
  line-height: 1.8;
}

.about-text p:nth-child(1) {
  padding: 15px 20px;
  background-color: rgba(0, 84, 169, 0.05);
  border-left: 3px solid var(--primary-color);
  border-radius: 0 8px 8px 0;
}

.about-text p:nth-child(2) {
  padding: 10px 0 10px 30px;
  position: relative;
}

.about-text p:nth-child(2)::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 10px;
  color: var(--accent-color2);
  font-weight: bold;
}

.about-text p:nth-child(3) {
  padding: 18px;
  background-color: rgba(42, 170, 138, 0.1);
  border-radius: 8px;
  border: 2px solid var(--accent-color2);
  font-weight: 500;
  margin-top: 25px;
}

/* イベントリニューアル */
.renewal-section {
  margin-top: 30px;
}

.renewal-section-title {
  font-family: 'IBM Plex Sans JP', sans-serif;
  font-size: 24px;
  margin-bottom: 20px;
  color: var(--primary-color);
  font-weight: 700;
  display: flex;
  align-items: center;
  border-bottom: 2px dashed rgba(0, 84, 169, 0.2);
  padding-bottom: 15px;
}

.icon-image-title {
  width: 50px;
  height: 50px;
  margin-right: 12px;
}

.renewal-content {
  background-color: rgba(254, 122, 54, 0.08);
  padding: 30px;
  border-radius: 12px;
  border-left: 3px solid var(--accent-color1);
}

.renewal-catchcopy p {
  font-size: 17px;
  line-height: 1.8;
}

.renewal-catchcopy strong {
  color: var(--accent-color1);
  font-weight: 700;
  background: rgba(254, 122, 54, 0.2);
  padding: 2px 4px;
  border-radius: 3px;
}

/* 参加メリット - 大幅改善 */
.benefits {
  padding: 20px 0;
}

.benefit-container {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.benefit-group {
  position: relative;
  background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
  border-radius: 20px;
  padding: 30px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
  border: 2px solid transparent;
  overflow: hidden;
  transition: all 0.3s ease;
}

.benefit-group::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color2));
}

.benefit-group:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}

.benefit-primary::before {
  background: linear-gradient(90deg, var(--primary-color), #0066cc);
}

.benefit-secondary::before {
  background: linear-gradient(90deg, var(--accent-color1), #ff9955);
}

.benefit-tertiary::before {
  background: linear-gradient(90deg, var(--accent-color2), #33cc99);
}

.benefit-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 20px;
}

.benefit-icon {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-color), #0066cc);
  color: white;
  font-weight: bold;
  box-shadow: 0 4px 15px rgba(0, 84, 169, 0.3);
  flex-shrink: 0;
}

.benefit-secondary .benefit-icon {
  background: linear-gradient(135deg, var(--accent-color1), #ff9955);
  box-shadow: 0 4px 15px rgba(254, 122, 54, 0.3);
}

.benefit-tertiary .benefit-icon {
  background: linear-gradient(135deg, var(--accent-color2), #33cc99);
  box-shadow: 0 4px 15px rgba(42, 170, 138, 0.3);
}

.benefit-number {
  font-size: 24px;
  font-weight: 800;
  line-height: 1;
}

.benefit-number-small {
  font-size: 18px !important;
  font-weight: 700 !important;
  line-height: 1 !important;
}

.benefit-unit {
  font-size: 12px;
  font-weight: 500;
  margin-top: 2px;
}

.benefit-title {
  font-family: 'IBM Plex Sans JP', sans-serif;
  font-size: 20px;
  color: var(--primary-color);
  font-weight: 700;
  margin: 0;
  line-height: 1.3;
}

.benefit-description {
  font-size: 16px;
  line-height: 1.8;
  color: #555;
  margin: 0;
  padding: 20px;
  background: rgba(255, 255, 255, 0.7);
  border-radius: 12px;
  border-left: 4px solid var(--primary-color);
}

.benefit-secondary .benefit-description {
  border-left-color: var(--accent-color1);
}

.benefit-tertiary .benefit-description {
  border-left-color: var(--accent-color2);
}

/* コミュニティ概要 */
.overview {
  padding: 20px 0;
}

.overview-heading {
  text-align: center;
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 40px;
  color: var(--accent-color1);
}

.overview-cards {
  display: flex;
  gap: 30px;
}

.overview-card {
  flex: 1;
  background: white;
  padding: 35px 25px 25px;
  border-radius: 20px;
  box-shadow: 0 5px 15px rgba(0, 84, 169, 0.08);
  border-left: 3px solid var(--primary-color);
}

.overview-card-image {
  margin: -40px -30px 20px;
  height: 180px;
  text-align: center;
  padding-top: 35px;
}

.card-image {
  height: 80%;
  max-width: 85%;
  object-fit: contain;
}

.overview-card h3 {
  font-family: 'IBM Plex Sans JP', sans-serif;
  font-size: 20px;
  margin-bottom: 15px;
  color: var(--primary-color);
  border-bottom: 2px dashed rgba(0, 84, 169, 0.2);
  padding-bottom: 12px;
}

.catchphrase {
  font-size: 15px;
  line-height: 1.6;
  padding: 15px;
  margin-top: 15px;
  color: var(--accent-color1);
  font-weight: 600;
  background-color: rgba(254, 122, 54, 0.08);
  border-radius: 8px;
  text-align: center;
}

/* 第2週・第4週詳細セクション */
.week-detail {
  padding: 20px 0;
  margin-top: 30px;
}

.week-detail .section-inner {
  padding: 50px;
  border-radius: 20px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

/* 第2週セクション */
.second-week .section-inner {
  background: rgba(42, 170, 138, 0.05);
  border: 3px solid var(--accent-color2);
}

.second-week .section-title {
  background: var(--accent-color2);
  color: white !important;
  padding: 20px 40px;
  border-radius: 15px;
  font-size: 30px;
  font-weight: 800;
  margin-bottom: 40px;
}

.second-week .section-title::after {
  display: none;
}

/* 第4週セクション */
.fourth-week .section-inner {
  background: rgba(254, 122, 54, 0.05);
  border: 3px solid var(--accent-color1);
}

.fourth-week .section-title {
  background: var(--accent-color1);
  color: white !important;
  padding: 20px 40px;
  border-radius: 15px;
  font-size: 30px;
  font-weight: 800;
  margin-bottom: 40px;
}

.fourth-week .section-title::after {
  display: none;
}

/* 週詳細内のサブセクション */
.week-section-title {
  font-family: 'IBM Plex Sans JP', sans-serif;
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 20px;
  padding: 15px 25px;
  background: rgba(0, 84, 169, 0.08);
  border-left: 5px solid var(--primary-color);
  border-radius: 8px;
  color: var(--primary-color);
}

.week-overview {
  margin-bottom: 30px;
  padding: 25px;
  background: white;
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.event-heading {
  display: flex;
  align-items: flex-start;
  gap: 15px;
  margin-bottom: 20px;
}

.event-heading h4 {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-color);
  line-height: 1.4;
}

.event-icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

.icon-image {
  width: 100%;
  height: auto;
}

.event-description {
  font-size: 16px;
  line-height: 1.7;
  color: #444;
  font-weight: 500;
}

.event-description strong {
  color: var(--accent-color2);
  font-weight: 700;
  background: rgba(42, 170, 138, 0.2);
  padding: 2px 4px;
  border-radius: 3px;
}

.fourth-week .event-description strong {
  color: var(--accent-color1);
  background: rgba(254, 122, 54, 0.2);
}

/* 参加メリットセクション - カード形式に改善 */
.week-benefits-section {
  margin-bottom: 30px;
  padding: 25px;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 12px;
}

.week-benefit-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.week-benefit-card {
  background: white;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
  border-left: 4px solid var(--accent-color2);
  transition: all 0.3s ease;
  text-align: center;
}

.week-benefit-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.fourth-week .week-benefit-card {
  border-left-color: var(--accent-color1);
}

.week-benefit-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  background: rgba(42, 170, 138, 0.1);
  border-radius: 50%;
  margin: 0 auto 15px;
}

.fourth-week .week-benefit-icon {
  background: rgba(254, 122, 54, 0.1);
}

.benefit-emoji {
  font-size: 24px;
}

.benefit-icon-image {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.week-benefit-card p {
  font-size: 15px;
  line-height: 1.6;
  margin: 0;
  color: #555;
}

/* 変更内容セクション - バッジ追加 */
.week-changes-section {
  margin-bottom: 30px;
  padding: 25px;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 12px;
}

.comparison-box {
  display: flex;
  gap: 20px;
}

.comparison-col {
  flex: 1;
  padding: 20px;
  background-color: white;
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  position: relative;
}

.comparison-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 15px;
}

.old-style {
  opacity: 0.8;
  background-color: #f8f9fa;
}

.new-style {
  background: rgba(42, 170, 138, 0.05);
  border: 2px solid var(--accent-color2);
}

.fourth-week .new-style {
  background: rgba(254, 122, 54, 0.05);
  border: 2px solid var(--accent-color1);
}

.old-badge, .new-badge {
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}

.old-badge {
  background: #999;
  color: white;
}

.new-badge {
  background: var(--accent-color2);
  color: white;
}

.fourth-week .new-badge {
  background: var(--accent-color1);
}

.comparison-col h5 {
  font-size: 18px;
  margin: 0;
  font-weight: 700;
}

.new-style h5 {
  color: var(--accent-color2);
}

.fourth-week .new-style h5 {
  color: var(--accent-color1);
}

.comparison-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.comparison-col li {
  position: relative;
  padding-left: 25px;
  margin-bottom: 12px;
  line-height: 1.6;
}

.comparison-col li::before {
  content: '•';
  position: absolute;
  left: 0;
  top: 3px;
  font-weight: bold;
}

.old-style li::before {
  color: #999;
}

.new-style li::before {
  color: var(--accent-color2);
}

.fourth-week .new-style li::before {
  color: var(--accent-color1);
}

.new-style li strong {
  font-weight: 700;
  color: var(--accent-color2);
}

.fourth-week .new-style li strong {
  color: var(--accent-color1);
}

/* タイムスケジュール - タイムライン形式に改善 */
.week-timetable-section {
  padding: 25px;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 12px;
}

.timetable-single {
  background: white;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  border: 2px solid var(--accent-color2);
}

.timetable-double {
  display: flex;
  gap: 30px;
}

.timetable-part {
  flex: 1;
  background: white;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  border: 2px solid var(--accent-color1);
}

.timetable-subtitle {
  font-size: 18px;
  margin: 0 0 25px;
  color: #444;
  font-weight: 700;
  padding: 12px 20px;
  background: rgba(254, 122, 54, 0.08);
  border-left: 4px solid var(--accent-color1);
  border-radius: 8px;
  text-align: center;
}

.second-week .timetable-subtitle {
  background: rgba(42, 170, 138, 0.08);
  border-left-color: var(--accent-color2);
}

.timeline-container {
  position: relative;
}

.timeline-container::before {
  content: '';
  position: absolute;
  left: 25px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent-color1), rgba(254, 122, 54, 0.3));
}

.second-week .timeline-container::before {
  background: linear-gradient(to bottom, var(--accent-color2), rgba(42, 170, 138, 0.3));
}

.timeline-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 20px;
  position: relative;
  padding-left: 60px;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: 19px;
  top: 8px;
  width: 12px;
  height: 12px;
  background: var(--accent-color1);
  border-radius: 50%;
  border: 3px solid white;
  box-shadow: 0 0 0 2px var(--accent-color1);
}

.second-week .timeline-item::before {
  background: var(--accent-color2);
  box-shadow: 0 0 0 2px var(--accent-color2);
}

.timeline-item.highlight::before {
  background: white;
  box-shadow: 0 0 0 3px var(--accent-color1);
  transform: scale(1.2);
}

.second-week .timeline-item.highlight::before {
  box-shadow: 0 0 0 3px var(--accent-color2);
}

.timeline-time {
  color: var(--accent-color1);
  font-weight: bold;
  margin-right: 15px;
  min-width: 70px;
  font-size: 14px;
}

.second-week .timeline-time {
  color: var(--accent-color2);
}

.timeline-content h5 {
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 5px;
  color: #333;
}

.timeline-content p {
  font-size: 14px;
  color: #666;
  margin: 0;
  line-height: 1.4;
}

/* マッチングシステムについて */
.matching-system {
  padding: 20px 0;
}

.matching-system-content {
  background-color: #f8f9fa;
  padding: 40px;
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.matching-system-image-container {
  width: 100%;
  margin-bottom: 30px;
}

.matching-system-image {
  width: 100%;
  height: auto;
  border-radius: 8px;
}

.matching-system-text p {
  margin-bottom: 20px;
  font-size: 16px;
  line-height: 1.8;
}

.matching-system-text p:nth-child(1) {
  padding: 15px 20px;
  background-color: rgba(0, 84, 169, 0.05);
  border-left: 3px solid var(--primary-color);
  border-radius: 0 8px 8px 0;
}

.matching-system-text p:nth-child(2) {
  padding: 10px 0 10px 30px;
  position: relative;
}

.matching-system-text p:nth-child(2)::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 10px;
  color: var(--accent-color2);
  font-weight: bold;
}

.matching-system-text p:nth-child(3) {
  padding: 18px;
  background-color: rgba(42, 170, 138, 0.1);
  border-radius: 8px;
  border: 2px solid var(--accent-color2);
  font-weight: 500;
  margin-top: 25px;
}

/* 参加登録までのステップ */
.registration {
  padding: 20px 0;
}

.registration-heading {
  text-align: center;
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 30px;
  color: var(--accent-color1);
}

.steps-container {
  display: flex;
  flex-direction: column;
  gap: 25px;
  max-width: 750px;
  margin: 0 auto;
  position: relative;
}

.steps-container::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 36px;
  width: 1px;
  background: rgba(0, 84, 169, 0.2);
}

.step {
  display: flex;
  align-items: flex-start;
  background-color: white;
  padding: 25px;
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  position: relative;
  z-index: 1;
}

.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  background: var(--primary-color);
  color: white;
  border-radius: 50%;
  font-weight: bold;
  font-size: 20px;
  margin-right: 20px;
  flex-shrink: 0;
}

.step-text {
  font-size: 16px;
  line-height: 1.7;
  padding-top: 14px;
}

.step-text-center {
  text-align: center;
}

.registration-cta {
  text-align: center;
  margin-top: 40px;
}

.btn-cta {
  background: var(--accent-color1);
  color: white;
  padding: 15px 40px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 16px;
  box-shadow: 0 2px 8px rgba(254, 122, 54, 0.2);
  display: inline-block;
  transition: all 0.3s ease;
}

.btn-cta:hover {
  background: #e56830;
  box-shadow: 0 4px 12px rgba(254, 122, 54, 0.3);
}

/* サイドバー */
.sidebar {
  width: 300px;
  position: sticky;
  top: 110px;
  align-self: flex-start;
  height: max-content;
  animation: slideInFromRight 0.8s ease-out;
}

.sidebar-inner {
  background-color: white;
  padding: 30px 25px;
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
}

.sidebar-inner:hover {
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
  transform: translateY(-3px);
}

.sidebar-logo {
  text-align: center;
  margin-bottom: 20px;
}

.sidebar-logo-image {
  max-width: 130px;
  height: auto;
  transition: transform 0.3s ease;
}

.sidebar-logo-image:hover {
  transform: scale(1.05);
}

.sidebar-title {
  font-family: 'IBM Plex Sans JP', sans-serif;
  font-size: 17px;
  margin-bottom: 20px;
  color: var(--primary-color);
  text-align: center;
  line-height: 1.6;
  animation: fadeIn 0.8s ease-out 0.3s both;
}

.sidebar-buttons {
  display: flex;
  flex-direction: column;
  gap: 15px;
  margin-bottom: 25px;
}

.btn {
  display: block;
  text-align: center;
  text-decoration: none;
  padding: 15px;
  border-radius: 8px;
  font-weight: 600;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.btn:visited {
  text-decoration: none;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: var(--primary-color);
  color: white;
  box-shadow: 0 2px 8px rgba(0, 84, 169, 0.2);
  transform: translateY(0);
}

.btn-primary:visited {
  color: white;
}

.btn-primary:hover {
  background: #003d7a;
  box-shadow: 0 6px 20px rgba(0, 84, 169, 0.4);
  transform: translateY(-2px);
}

.btn-primary:hover:visited {
  color: white;
}

.btn-cta {
  background: var(--accent-color1);
  color: white;
  padding: 15px 40px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 16px;
  box-shadow: 0 2px 8px rgba(254, 122, 54, 0.2);
  display: inline-block;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.btn-cta:visited {
  color: white;
  text-decoration: none;
}

.btn-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.btn-cta:hover::before {
  left: 100%;
}

.btn-cta:hover {
  background: #e56830;
  box-shadow: 0 6px 20px rgba(254, 122, 54, 0.4);
  transform: translateY(-3px);
}

.btn-cta:hover:visited {
  color: white;
}

.sidebar-note {
  font-size: 14px;
  color: #555;
  margin-top: 15px;
  line-height: 1.6;
  padding-left: 20px;
  position: relative;
  opacity: 0.8;
  transition: opacity 0.3s ease;
}

.sidebar-note:hover {
  opacity: 1;
}

.sidebar-note::before {
  content: '※';
  position: absolute;
  left: 0;
  color: var(--primary-color);
}

/* レスポンシブ対応 - 改良版 */

/* タブレット (1024px以下) */
@media (max-width: 1024px) {
  .container {
    max-width: 95%;
    gap: 20px;
  }
  
  .section-inner {
    padding: 30px 25px;
  }
  
  .hero-inner {
    padding: 15px;
  }
  
  .intro-description {
    max-width: 80%;
  }
  
  .nav-list {
    gap: 20px;
  }
  
  .nav-link {
    font-size: 14px;
  }
}

/* タブレット縦向き (768px以下) */
@media (max-width: 768px) {
  body {
    padding-top: 80px;
  }
  
  .header-nav {
    display: none;
  }
  
  .mobile-menu-button {
    display: flex;
  }
  
  .mobile-menu {
    display: block;
  }
  
  .container {
    flex-direction: column;
    padding: 0 15px;
    gap: 20px;
  }
  
  .sidebar {
    width: 100%;
    position: static;
    margin-top: 20px;
    animation: fadeInUp 0.6s ease-out;
  }
  
  .section-inner {
    padding: 25px 20px;
  }
  
  .section-title {
    font-size: 24px;
    margin-bottom: 25px;
  }
  
  .hero {
    padding: 30px 20px;
  }
  
  .hero-inner {
    margin: -60px auto 0;
    padding: 15px;
  }
  
  .intro-subtitle {
    font-size: 20px;
  }
  
  .intro-description {
    font-size: 16px;
    max-width: 90%;
    padding: 18px 20px;
  }
  
  .logo {
    max-width: 280px;
  }
  
  .logo-bubble {
    top: -40px;
    left: -100px;
    max-width: 120px;
  }
  
  .problem-cards-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .overview-cards {
    flex-direction: column;
    gap: 20px;
  }
  
  .comparison-box {
    flex-direction: column;
    gap: 15px;
  }
  
  .timetable-double {
    flex-direction: column;
    gap: 20px;
  }
  
  .week-benefit-cards {
    grid-template-columns: 1fr;
    gap: 15px;
  }
  
  .benefit-header {
    flex-direction: column;
    text-align: center;
    gap: 15px;
  }
  
  .week-detail .section-inner {
    padding: 30px 20px;
  }
  
  .steps-container::before {
    left: 25px;
  }
  
  .step-number {
    width: 40px;
    height: 40px;
    font-size: 18px;
  }
}

/* スマートフォン (480px以下) */
@media (max-width: 480px) {
  .header-container {
    padding: 15px;
  }
  
  .container {
    padding: 0 10px;
  }
  
  .section-inner {
    padding: 20px 15px;
  }
  
  .section-title {
    font-size: 22px;
    margin-bottom: 20px;
  }
  
  .hero {
    padding: 25px 15px;
  }
  
  .hero-inner {
    margin: -50px auto 0;
    padding: 10px;
  }
  
  .intro-subtitle {
    font-size: 18px;
    margin: 15px 0;
  }
  
  .intro-description {
    font-size: 15px;
    max-width: 95%;
    padding: 15px 18px;
  }
  
  .logo {
    max-width: 250px;
  }
  
  .logo-bubble {
    top: -35px;
    left: -80px;
    max-width: 100px;
  }
  
  .problem-card-vertical {
    padding: 25px 20px;
  }
  
  .problem-title {
    font-size: 16px;
  }
  
  .problem-description {
    font-size: 13px;
  }
  
  .benefit-icon {
    width: 60px;
    height: 60px;
  }
  
  .benefit-number {
    font-size: 20px;
  }
  
  .benefit-number-small {
    font-size: 16px !important;
  }
  
  .benefit-title {
    font-size: 18px;
  }
  
  .benefit-description {
    font-size: 14px;
    padding: 15px;
  }
  
  .week-benefit-icon {
    width: 40px;
    height: 40px;
  }
  
  .benefit-icon-image {
    width: 35px;
    height: 35px;
  }
  
  .week-benefit-card {
    padding: 15px;
  }
  
  .week-benefit-card p {
    font-size: 14px;
  }
  
  .week-detail .section-inner {
    padding: 25px 15px;
  }
  
  .week-section-title {
    font-size: 20px;
    padding: 12px 20px;
  }
  
  .sidebar-inner {
    padding: 25px 20px;
  }
  
  .sidebar-title {
    font-size: 16px;
  }
  
  .btn {
    padding: 12px;
    font-size: 14px;
  }
  
  .btn-cta {
    padding: 12px 30px;
    font-size: 15px;
  }
  
  .step {
    padding: 20px 15px;
  }
  
  .step-text {
    font-size: 15px;
  }
  
  .mobile-nav-link {
    padding: 12px 15px;
    font-size: 15px;
  }
}

/* 小型スマートフォン (360px以下) */
@media (max-width: 360px) {
  .header-container {
    padding: 12px;
  }
  
  .section-title {
    font-size: 20px;
  }
  
  .intro-subtitle {
    font-size: 16px;
  }
  
  .intro-description {
    font-size: 14px;
    padding: 12px 15px;
  }
  
  .logo {
    max-width: 220px;
  }
  
  .problem-card-vertical {
    padding: 20px 15px;
  }
  
  .problem-card-icon {
    width: 70px;
    height: 70px;
  }
  
  .problem-icon-image {
    width: 50px;
    height: 50px;
  }
  
  .benefit-icon {
    width: 50px;
    height: 50px;
  }
  
  .benefit-number {
    font-size: 18px;
  }
  
  .benefit-title {
    font-size: 16px;
  }
  
  .week-benefit-icon {
    width: 35px;
    height: 35px;
  }
  
  .benefit-icon-image {
    width: 30px;
    height: 30px;
  }
}


/* Header対策 */

header {
	    margin-top: 26px;
}
	    
@media screen and (max-width:768px) {
header {
	    margin-top: 0px;
	}
}


.corporate_logo {
  width: 100%;
  max-width: 1040px;
  margin: 0 auto;
  padding: 20px 20px;
}

.corporate_logo img {
  height: 18px;
  width: auto;

}



.site_seal {
  display: flex;
  justify-content: center;
  flex-direction: row;
}

.site_seal div.site_seal_left {
  padding: 40px 5px 40px 115px;
}

.site_seal div.site_seal_center {
  padding: 40px 5px 0px 5px;
}

.site_seal div.site_seal_right {
  padding: 40px 115px 40px 5px;
}

@media only screen and (max-width: 767px) {
  .site_seal {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
  }

  .site_seal a {
    display: block !important;
  }

  .site_seal div.site_seal_left {
    padding: 40px 115px 5px;
  }

  .site_seal div.site_seal_right {
padding: 5px 115px 40px;
  }
}

.footer_area_bg {
  background-color: #fff;

}