/* ===================================
   FLOCSS Architecture
   Foundation / Layout / Object
   =================================== */

/* --- Foundation --- */
@import url("https://fonts.googleapis.com/css2?family=Montserrat:wght@700&family=Noto+Sans+JP:wght@400;700&display=swap");

/* Base Font Size: 1rem = 1rem */
html {
  font-size: 62.5%; /* 1rem/1.6rem = 62.5% */
  scroll-padding-top: calc(var(--header-height) + 2rem);
}

/* Variables */
:root {
  --main-color: #03173f;
  --sub-color: #16497b;
  --accent-color: #fca100;
  --text-color: #333;
  --bg-light: #f8f9fa;
  --white: #fff;
  --header-height: 11rem; /* 8rem */
  --header-height-sp: 8rem; /* 8rem */
  --border-radius: 0.8rem; /* 0.8rem */
  --shadow-light: 0 0.4rem 1.5rem rgba(0, 0, 0, 0.08);
  --shadow-medium: 0 0.8rem 2.5rem rgba(22, 73, 123, 0.1);
  --shadow-heavy: 0 1.2rem 3rem rgba(22, 73, 123, 0.15);
  --transition: 0.3s ease;

  /* Fluid Typography - 1.6rem基準 */
  --font-size-xs: 1.2rem; /* 1.2rem */
  --font-size-sm: 1.4rem; /* 1.4rem */
  --font-size-base: 1.6rem; /* 1.6rem - 基本テキストサイズ */
  --font-size-lg: 1.8rem; /* 1.8rem */
  --font-size-xl: 2.2rem; /* 2.2rem */
  --font-size-2xl: 2.8rem; /* 2.8rem */
  --font-size-3xl: 3.6rem; /* 3.6rem */
  --font-size-4xl: 4.8rem; /* 4.8rem */
  --font-size-5xl: 6rem; /* 6rem */

  /* Heading Sizes - 指定サイズに調整 */
  --h1-size: 3.6rem; /* 36px */
  --h2-size: 3.2rem; /* 32px */
  --h3-size: 2.8rem; /* 28px */
  --h4-size: 2.4rem; /* 24px */
  --h5-size: 2rem; /* 20px */
  --h6-size: 1.8rem; /* 18px */

  /* Fluid Spacing */
  --space-xs: 0.5rem; /* 0.5rem */
  --space-sm: 1rem; /* 1rem */
  --space-md: 1.5rem; /* 1.5rem */
  --space-lg: 2rem; /* 2rem */
  --space-xl: 3rem; /* 3rem */
  --space-2xl: 4rem; /* 4rem */
  --space-3xl: 6rem; /* 6rem */
  --space-4xl: 8rem; /* 8rem */
  --space-5xl: 10rem; /* 10rem */
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  font-family: "Noto Sans JP", sans-serif;
  font-size: var(--font-size-base); /* 1.6rem */
  line-height: 1.7;
  color: var(--text-color);
  background-color: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a {
  text-decoration: none;
  color: var(--sub-color);
  transition: color 0.3s;
}
a:hover {
  color: var(--accent-color);
}
.container {
  max-width: 120rem; /* 120rem */
  margin: 0 auto;
  padding: 0 var(--space-2xl); /* 4rem */
}
.section-padding {
  padding: var(--space-5xl) 0; /* 10rem */
}
.section-title {
  font-size: var(--h3-size); /* 2.8rem - より大きく */
  color: var(--accent-color);
  text-align: center;
  margin-bottom: var(--space-sm); /* 1rem */
  font-family: "Montserrat", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.2rem; /* 0.2rem */
  font-weight: 700;
}
.section-subtitle {
  text-align: center;
  font-size: var(--font-size-xl); /* 2.2rem - より大きく */
  font-weight: 700;
  color: var(--main-color);
  margin-bottom: var(--space-3xl); /* 6rem */
}
/* --- Legacy Button (削除予定) --- */
.btn {
  display: inline-block;
  background: linear-gradient(
    135deg,
    var(--main-color) 0%,
    var(--sub-color) 100%
  );
  color: var(--white) !important;
  padding: 1.4rem 3.5rem;
  border-radius: 5rem;
  font-weight: 700;
  transition: transform var(--transition), box-shadow var(--transition);
  box-shadow: var(--shadow-light);
  border: none;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover {
  color: var(--white) !important;
  transform: translateY(-0.3rem);
  box-shadow: 0 0.7rem 2rem rgba(3, 23, 63, 0.3);
}
.view-more {
  text-align: center;
  margin-top: var(--space-3xl); /* 5rem */
}
.bg-light {
  background-color: var(--bg-light);
}

/* --- Header (Legacy - 削除予定) --- */
.header {
  background-color: var(--white);
  height: var(--header-height);
  position: fixed;
  width: 100%;
  top: 0;
  left: 0;
  z-index: 1000;
  box-shadow: 0 0.2rem 1rem rgba(0, 0, 0, 0.05);
}
.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
  padding: 0 var(--space-2xl);
}
.logo img {
  height: 4.5rem;
  width: auto;
  display: block;
}
.global-nav ul {
  display: flex;
  list-style: none;
  gap: var(--space-xl);
}
.global-nav a {
  color: var(--main-color);
  font-weight: 700;
  font-size: var(--font-size-base);
  padding: var(--space-xs);
  position: relative;
}
.global-nav a::after {
  content: "";
  position: absolute;
  bottom: -0.2rem;
  left: var(--space-xs);
  right: var(--space-xs);
  height: 0.2rem;
  background-color: var(--accent-color);
  transform: scaleX(0);
  transition: transform var(--transition);
}
.global-nav a:hover::after {
  transform: scaleX(1);
}
.secure-link .fa-lock {
  margin-right: var(--space-xs);
  color: var(--accent-color);
}
.hamburger-menu {
  display: none;
  background: 0 0;
  border: none;
  cursor: pointer;
  z-index: 1001;
}
.hamburger-menu span {
  display: block;
  width: 2.5rem;
  height: 0.3rem;
  background-color: var(--main-color);
  margin: var(--space-xs) 0;
  transition: all var(--transition);
}

/* --- Main Content --- */
main {
  /* padding-top: var(--header-height); */
}

/* Hero Section */
.hero {
  position: relative;
  height: calc(100vh - var(--header-height));
  min-height: 50rem;
  max-height: 70rem;
  color: var(--white);
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
}
.hero-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
}
.hero-image::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    180deg,
    rgba(3, 23, 63, 0.7) 0,
    rgba(22, 73, 123, 0.4) 100%
  );
}
.hero-message {
  position: relative;
  z-index: 10;
  padding: 0 2rem;
}
.hero h1 {
  font-size: 3rem;
  font-weight: 700;
  text-shadow: 0 0.2rem 0.8rem rgba(0, 0, 0, 0.5);
  line-height: 1.4;
}

/* President Greeting Section */
.greeting-content {
  display: flex;
  align-items: center;
  gap: 6rem;
}
.president-photo {
  flex: 0 0 30rem;
  text-align: center;
}
.president-photo img {
  width: 100%;
  height: auto;
  border-radius: 0.8rem;
  box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.1);
}
.president-title {
  font-size: 1.6rem;
  color: #666;
  margin-top: 1.5rem;
}
.president-name {
  font-size: 2rem;
  font-weight: 700;
  color: var(--main-color);
}
.greeting-text h3 {
  font-size: 2rem;
  margin-bottom: 2rem;
  color: var(--main-color);
  line-height: 1.5;
}
.greeting-text p {
  margin-bottom: 3rem;
}

/* News & Bulletin Section */
.news-list {
  list-style: none;
  border-top: 0.1rem solid #ddd;
}
.news-list li {
  padding: 2.5rem 2rem;
  border-bottom: 0.1rem solid #ddd;
  display: flex;
  align-items: center;
  gap: 2.5rem;
  flex-wrap: wrap;
  transition: background-color 0.3s;
}
.news-list li:hover {
  background-color: #fff;
}
.news-list time {
  font-family: "Montserrat", sans-serif;
  font-weight: 700;
  flex-shrink: 0;
  color: var(--text-color);
}
.news-list .category {
  padding: 0.5rem 1.2rem;
  color: var(--white);
  border-radius: 3rem;
  font-size: 0.8rem;
  font-weight: 700;
  flex-shrink: 0;
}
.cat-bulletin {
  background-color: var(--accent-color);
}
.cat-news {
  background-color: var(--sub-color);
}
.news-list a {
  font-weight: 700;
  font-size: 1.4rem;
}

/* Schedule Highlight Section */
.schedule-list {
  list-style: none;
  max-width: 90rem;
  margin: 0 auto;
  border-left: 0.3rem solid var(--accent-color);
  padding-left: 4rem;
}
.schedule-list li {
  padding: 2rem 0;
  display: flex;
  align-items: center;
  gap: 3rem;
}
.schedule-list .date {
  font-family: "Montserrat", sans-serif;
  font-weight: 700;
  color: var(--main-color);
  font-size: 1.2rem;
  min-width: 13rem;
}
.schedule-list .event {
  font-size: 1.2rem;
  font-weight: 700;
}

/* Activity Cards Section */
.activity-cards {
  background-color: var(--main-color);
}
.activity-cards .section-subtitle {
  color: rgba(255, 255, 255, 0.8);
}
.cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 3rem;
}
.card {
  display: flex;
  flex-direction: column;
  background-color: var(--white);
  padding: 3.5rem;
  text-align: center;
  border-radius: 0.8rem;
  box-shadow: 0 0.4rem 1.5rem rgba(0, 0, 0, 0.08);
  transition: transform 0.3s, box-shadow 0.3s;
}
.card:hover {
  transform: translateY(-1rem);
  box-shadow: 0 1rem 2.5rem rgba(0, 0, 0, 0.15);
}
.card-icon {
  font-size: 3.5rem;
  color: var(--accent-color);
  margin-bottom: 2.5rem;
}
.card-title {
  font-size: 2rem;
  color: var(--main-color);
  margin-bottom: 1.5rem;
  font-weight: 700;
  flex-grow: 1;
}
.card-description {
  font-size: 1.6rem;
  color: #666;
  line-height: 1.6;
}

/* Community Links Section */
.links-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}
.link-item {
  background: var(--white);
  border-radius: 0.8rem;
  box-shadow: 0 0.8rem 2.5rem rgba(22, 73, 123, 0.1);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s, box-shadow 0.3s;
}
.link-item:hover {
  transform: translateY(-0.5rem);
  box-shadow: 0 1.2rem 3rem rgba(22, 73, 123, 0.15);
}
.link-item img {
  width: 100%;
  height: 25rem;
  object-fit: cover;
  display: block;
}
.link-item-content {
  padding: 3rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}
.link-item-content h3 {
  font-size: 1.6rem;
  color: var(--main-color);
  margin-bottom: 1.5rem;
  font-weight: 700;
}
.link-item-content p {
  margin-bottom: 2.5rem;
  flex-grow: 1;
}
.btn-text {
  font-weight: 700;
  color: var(--sub-color);
  align-self: flex-start;
  font-size: 1.6rem;
}
.btn-text:hover {
  color: var(--accent-color);
}

/* --- Footer --- */
.footer {
  background-color: var(--main-color);
  color: var(--white);
  padding: 6rem 0 0;
}
.footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 4rem;
  padding-bottom: 5rem;
}
.footer-logo img {
  height: 4.5rem;
}
.footer-info p {
  margin-top: 1.5rem;
  font-size: 1.6rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.8);
}
.footer-nav ul {
  list-style: none;
  display: flex;
  gap: 2.5rem;
  flex-wrap: wrap;
}
.footer-nav a {
  color: var(--white);
  opacity: 0.9;
  font-weight: 700;
}
.footer-nav a:hover {
  opacity: 1;
  color: var(--accent-color);
}
.copyright {
  text-align: center;
  padding: 2.5rem;
  border-top: 0.1rem solid hsla(0, 0%, 100%, 0.1);
  color: rgba(255, 255, 255, 0.6);
}

/* --- Responsive Design --- */
@media (max-width: 102.4rem) {
  .cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 76.8rem) {
  /* スマホ用のスクロールパディング調整 */
  html {
    scroll-padding-top: calc(var(--header-height-sp) + 2rem);
  }

  /* ヘッダー高さをスマホ用に調整 */
  .header,
  .c-header {
    height: var(--header-height-sp);
  }

  /* メインコンテンツのpadding-topをスマホ用に調整 */
  main {
    /* padding-top: var(--header-height-sp); */
  }

  /* ヒーローセクションの高さをスマホ用に調整 */
  .hero,
  .c-hero-slider {
    height: calc(100vh - var(--header-height-sp));
  }

  .container {
    padding: 0 2rem;
  }
  .section-padding {
    padding: 8rem 0;
  }
  .hero h1 {
    font-size: 2.5rem;
  }
  .header-container {
    padding: 0 2rem;
  }
  .global-nav {
    position: fixed;
    top: var(--header-height-sp);
    left: 0;
    width: 100%;
    background-color: hsla(0, 0%, 100%, 0.95);
    height: calc(100vh - var(--header-height-sp));
    transform: translateX(100%);
    transition: transform 0.3s ease-in-out;
    backdrop-filter: blur(0.5rem);
  }
  .global-nav.active {
    transform: translateX(0);
  }
  .global-nav ul {
    flex-direction: column;
    align-items: center;
    padding-top: 5rem;
    gap: 3rem;
  }
  .hamburger-menu {
    display: block;
  }
  .greeting-content {
    flex-direction: column;
    gap: 4rem;
  }
  .president-photo {
    flex: 0 0 auto;
    width: 25rem;
  }
  .news-list li,
  .schedule-list li {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  .links-grid {
    grid-template-columns: 1fr;
  }

  /* モバイル用ヘッダー */
  .c-header__hamburger {
    display: block;
  }

  .c-header__nav {
    position: fixed;
    top: var(--header-height-sp);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--header-height-sp));
    background-color: var(--white);
    transform: translateX(-100%);
    transition: transform 0.3s ease-in-out;
    overflow-y: auto;
    padding: 2rem 0;
  }

  .c-header__nav--active {
    transform: translateX(0);
  }

  .c-header__nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0 2rem;
  }

  .c-header__nav li {
    border-bottom: 0.1rem solid #f0f0f0;
  }

  .c-header__nav a {
    padding: 1.5rem 0;
    font-size: 1.8rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .c-header__nav a::after {
    display: none;
  }

  /* モバイル用ドロップダウン */
  .c-header__dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border-radius: 0;
    background-color: var(--bg-light);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-in-out;
    /* Safari iOS対応 */
    -webkit-transition: max-height 0.3s ease-in-out;
    will-change: max-height;
  }

  .c-header__nav li.active .c-header__dropdown {
    max-height: 50rem;
  }

  /* Safari iOS対応: メニューが非アクティブ時の強制リセット */
  .c-header__nav:not(.c-header__nav--active) .c-header__dropdown {
    max-height: 0 !important;
    transition: max-height 0.1s ease-in-out;
    -webkit-transition: max-height 0.1s ease-in-out;
  }

  .c-header__nav:not(.c-header__nav--active) li.has-dropdown {
    /* Safari iOS対応: activeクラスを強制的に無効化 */
  }

  .c-header__nav:not(.c-header__nav--active)
    li.has-dropdown.active
    .c-header__dropdown {
    max-height: 0 !important;
  }

  .c-header__dropdown ul {
    padding: 0;
  }

  .c-header__dropdown li {
    border-bottom: none;
  }

  .c-header__dropdown a {
    padding: 1.2rem 2rem;
    font-size: 1.6rem;
    border-bottom: 0.1rem solid #e0e0e0;
  }

  /* モバイル用ドロップダウンアイコン */
  .c-header__nav li.has-dropdown > a {
    position: relative;
    padding-right: 4rem !important;
  }

  .c-header__nav li.has-dropdown > a::before {
    content: "+";
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-color);
    position: absolute;
    right: 1.5rem;
    top: 50%;
    margin-top: -1rem;
    transition: transform 0.3s ease;
    transform: rotate(0deg);
    transform-origin: center center;
    line-height: 1;
  }

  .c-header__nav li.has-dropdown.active > a::before {
    transform: rotate(45deg);
  }

  .c-header__special-btn {
    margin-left: 0;
    margin-top: 1rem;
    text-align: center;
    border-radius: 0.8rem;
  }
}
@media (max-width: 57.6rem) {
  .cards-grid {
    grid-template-columns: 1fr;
  }
}
/* ===================================
   Layout Components
   =================================== */

/* l-wrapper */
.l-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* l-main */
.l-main {
  flex: 1;
}

/* l-sidebar */
.l-sidebar {
  width: 30rem;
  /* background-color: var(--bg-light); */
  padding: 3rem;
}

/* l-content */
.l-content {
  flex: 1;
  padding: 2rem;
}

/* l-two-column */
.l-two-column {
  display: flex;
  gap: 4rem;
  align-items: flex-start;
}

/* ===================================
   Object Components
   =================================== */

/* --- c-hero-slider (トップページ用スライダー) --- */
.c-hero-slider {
  position: relative;
  height: calc(100vh - var(--header-height));
  min-height: 50rem;
  max-height: 70rem;
  overflow: hidden;
  margin-top: var(--header-height);
}

.c-hero-slider__container {
  position: relative;
  width: 100%;
  height: 100%;
}

.c-hero-slider__slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1s ease-in-out;
  color: var(--white);
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.c-hero-slider__slide--active {
  opacity: 1;
}

.c-hero-slider__image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
}

.c-hero-slider__image::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    180deg,
    rgba(3, 23, 63, 0.7) 0,
    rgba(22, 73, 123, 0.4) 100%
  );
}

.c-hero-slider__content {
  position: relative;
  z-index: 10;
  padding: 0 2rem;
  max-width: 80rem;
  top: -22rem;
  /* bottom: -20rem; */
}

@media screen and (max-width: 767px) {
  .c-hero-slider__content {
    top: -12rem;
    /* bottom: -12rem; */
  }
}

.c-hero-slider__title {
  font-size: 4.2rem;
  font-weight: 700;
  text-shadow: 0 0.2rem 0.8rem rgba(0, 0, 0, 0.5);
  line-height: 1.4;
  font-family: "Montserrat", sans-serif;
}

.c-hero-slider__subtitle {
  font-size: 2rem;
  opacity: 0.9;
  line-height: 1.6;
  margin-bottom: 3rem;
}

.c-hero-slider__button {
  display: inline-block;
  background-color: var(--accent-color);
  color: var(--main-color);
  padding: 1.5rem 4rem;
  border-radius: 5rem;
  font-weight: 700;
  text-decoration: none;
  transition: transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 0.4rem 1.5rem rgba(0, 0, 0, 0.2);
}

.c-hero-slider__button:hover {
  transform: translateY(-0.3rem);
  box-shadow: 0 0.8rem 2.5rem rgba(0, 0, 0, 0.3);
}

/* スライダーナビゲーション */
.c-hero-slider__nav {
  position: absolute;
  bottom: 3rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 1.5rem;
  z-index: 20;
}

.c-hero-slider__dot {
  width: 1.2rem;
  height: 1.2rem;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: background-color var(--transition), transform var(--transition);
}

.c-hero-slider__dot--active {
  background-color: var(--accent-color);
  transform: scale(1.2);
}

.c-hero-slider__dot:hover {
  background-color: rgba(255, 255, 255, 0.8);
}

/* スライダー矢印 */
.c-hero-slider__arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 5rem;
  height: 5rem;
  background-color: rgba(255, 255, 255, 0.2);
  border: none;
  border-radius: 50%;
  color: var(--white);
  font-size: 1.2rem;
  cursor: pointer;
  transition: background-color var(--transition);
  z-index: 20;
  display: none; /* 一旦非表示 */
  align-items: center;
  justify-content: center;
}

.c-hero-slider__arrow:hover {
  background-color: rgba(255, 255, 255, 0.3);
}

.c-hero-slider__arrow--prev {
  left: 3rem;
}

.c-hero-slider__arrow--next {
  right: 3rem;
}

/* --- c-hero-sub (第2階層用 - 旧第3階層スタイル) --- */
.c-hero-sub {
  background: linear-gradient(
    135deg,
    var(--main-color) 0%,
    var(--sub-color) 100%
  );
  color: var(--white);
  padding: 12rem 0 8rem;
  text-align: center;
  position: relative;
}

.c-hero-sub::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.05)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.05)"/><circle cx="50" cy="10" r="0.5" fill="rgba(255,255,255,0.03)"/><circle cx="20" cy="80" r="0.5" fill="rgba(255,255,255,0.03)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
  opacity: 0.3;
}

.c-hero-sub__content {
  position: relative;
  z-index: 2;
}

.c-hero-sub__title {
  font-size: 3.2rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  font-family: "Montserrat", sans-serif;
  letter-spacing: 0.1rem;
}

.c-hero-sub__subtitle {
  font-size: 1.6rem;
  opacity: 0.9;
  margin-bottom: 3rem;
}

.c-hero-sub__breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  font-size: 1.6rem;
  opacity: 0.8;
}

.c-hero-sub__breadcrumb a {
  color: var(--white);
  text-decoration: underline;
  text-underline-offset: 0.3rem;
}

.c-hero-sub__breadcrumb a:hover {
  opacity: 1;
}

.c-hero-sub__breadcrumb-separator {
  color: rgba(255, 255, 255, 0.6);
}

/* --- c-hero-page (第3階層用 - シンプル白背景) --- */
.c-hero-page {
  background-color: var(--white);
  padding: 8rem 0 6rem;
  text-align: center;
  border-bottom: 0.1rem solid #e0e0e0;
}

.c-hero-page__content {
  position: relative;
}

.c-hero-page__title {
  font-size: 2.6rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  font-family: "Montserrat", sans-serif;
  letter-spacing: 0.1rem;
  color: var(--accent-color);
}

.c-hero-page__subtitle {
  font-size: 1.6rem;
  color: #666;
  margin-bottom: 3rem;
}

.c-hero-page__breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  font-size: 1.4rem;
  color: #999;
}

.c-hero-page__breadcrumb a {
  color: var(--sub-color);
  text-decoration: none;
}

.c-hero-page__breadcrumb a:hover {
  color: var(--accent-color);
}

.c-hero-page__breadcrumb-separator {
  color: #ccc;
}

/* --- c-hero-simple (シンプル版) --- */
.c-hero-simple {
  background-color: var(--bg-light);
  padding: 6rem 0 4rem;
  border-bottom: 0.1rem solid #e0e0e0;
}

.c-hero-simple__content {
  text-align: center;
}

.c-hero-simple__title {
  font-size: var(--h1-size);
  color: var(--main-color);
  font-weight: 700;
  margin-bottom: 1rem;
  font-family: "Montserrat", sans-serif;
}

.c-hero-simple__subtitle {
  font-size: 1.6rem;
  color: #666;
  margin-bottom: 2rem;
}

.c-hero-simple__breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  font-size: 1.4rem;
  color: #999;
}

.c-hero-simple__breadcrumb a {
  color: var(--sub-color);
}

.c-hero-simple__breadcrumb a:hover {
  color: var(--accent-color);
}

.c-hero-simple__breadcrumb-separator {
  color: #ccc;
}

/* --- c-greeting --- */
.c-greeting {
  padding: var(--section-padding, 10rem) 0;
}

.c-greeting__content {
  display: flex;
  align-items: center;
  gap: 6rem;
}

.c-greeting__photo {
  flex: 0 0 30rem;
  text-align: center;
}

.c-greeting__photo img {
  width: 100%;
  height: auto;
  border-radius: var(--border-radius);
  box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.1);
}

.c-greeting__title {
  font-size: 1.6rem;
  color: #666;
  margin-top: 1.5rem;
}

.c-greeting__name {
  font-size: 2rem;
  font-weight: 700;
  color: var(--main-color);
}

.c-greeting__text h3 {
  font-size: 2rem;
  margin-bottom: 2rem;
  color: var(--main-color);
  line-height: 1.5;
}

.c-greeting__text p {
  margin-bottom: 3rem;
}

/* --- c-news-list --- */
.c-news-list {
  list-style: none;
  border-top: 0.1rem solid #ddd;
}

.c-news-list__item {
  padding: 2.5rem 2rem;
  border-bottom: 0.1rem solid #ddd;
  display: flex;
  align-items: center;
  gap: 2.5rem;
  flex-wrap: wrap;
  transition: background-color var(--transition);
}

.c-news-list__item:hover {
  background-color: var(--white);
}

.c-news-list__date {
  font-family: "Montserrat", sans-serif;
  font-weight: 700;
  flex-shrink: 0;
  color: var(--text-color);
}

.c-news-list__category {
  padding: 0.5rem 1.2rem;
  color: var(--white);
  border-radius: 3rem;
  font-size: 1.4rem;
  font-weight: 700;
  flex-shrink: 0;
}

.c-news-list__category--bulletin {
  background-color: var(--accent-color);
}

.c-news-list__category--news {
  background-color: var(--sub-color);
}

.c-news-list__link {
  font-weight: 700;
  font-size: 1.6rem;
}

/* --- c-schedule-list --- */
.c-schedule-list {
  list-style: none;
  max-width: 90rem;
  margin: 0 auto;
  border-left: 0.3rem solid var(--accent-color);
  padding-left: 4rem;
}

.c-schedule-list__item {
  padding: 2rem 0;
  display: flex;
  align-items: center;
  gap: 3rem;
}

.c-schedule-list__date {
  font-family: "Montserrat", sans-serif;
  font-weight: 700;
  color: var(--main-color);
  font-size: 1.4rem;
  min-width: 13rem;
}

.c-schedule-list__event {
  font-size: 1.6rem;
  font-weight: 700;
}

/* --- c-activity-cards --- */
.c-activity-cards {
  background-color: var(--main-color);
  padding: var(--section-padding, 10rem) 0;
}

.c-activity-cards .section-subtitle {
  color: rgba(255, 255, 255, 0.8);
}

.c-activity-cards__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
}

.c-activity-cards__item {
  display: flex;
  flex-direction: column;
  background-color: var(--white);
  padding: 2rem;
  text-align: center;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-light);
  transition: transform var(--transition), box-shadow var(--transition);
}

.c-activity-cards__item:hover {
  transform: translateY(-1rem);
  box-shadow: 0 1rem 2.5rem rgba(0, 0, 0, 0.15);
}

.c-activity-cards__icon {
  font-size: 3.5rem;
  color: var(--accent-color);
  margin-bottom: 2.5rem;
}

.c-activity-cards__icon--image {
  display: flex;
  justify-content: center;
  align-items: center;
}

.c-activity-cards__logo {
  width: 6rem;
  height: 6rem;
  object-fit: contain;
  border-radius: 0.5rem;
}

.c-activity-cards__title {
  font-size: 1.8rem;
  color: var(--main-color);
  margin-bottom: 1.5rem;
  font-weight: 700;
  flex-grow: 1;
}

.c-activity-cards__description {
  font-size: 1.6rem;
  color: #666;
  line-height: 1.6;
}

/* --- c-link-grid --- */
.c-link-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.c-link-grid__item {
  background: var(--white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-medium);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition), box-shadow var(--transition);
}

.c-link-grid__item:hover {
  transform: translateY(-0.5rem);
  box-shadow: var(--shadow-heavy);
}

.c-link-grid__image {
  width: 100%;
  height: 25rem;
  object-fit: cover;
  display: block;
}

.c-link-grid__content {
  padding: 3rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.c-link-grid__title {
  font-size: 2rem;
  color: var(--main-color);
  margin-bottom: 1.5rem;
  font-weight: 700;
}

.c-link-grid__text {
  margin-bottom: 2.5rem;
  flex-grow: 1;
}

.c-link-grid__link {
  font-weight: 700;
  color: var(--sub-color);
  align-self: flex-start;
  font-size: 1.6rem;
}

.c-link-grid__link:hover {
  color: var(--accent-color);
}

/* --- c-section --- */
.c-section {
  padding: var(--section-padding, 6rem) 0;
}

.c-section--light {
  background-color: var(--bg-light);
}

.c-section__title {
  font-size: var(--h2-size); /* 32px - より大きく */
  color: var(--main-color);
  text-align: center;
  margin-bottom: 1rem;
  font-family: "Montserrat", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.2rem;
  font-weight: 700;
}

.c-section__subtitle {
  text-align: center;
  font-size: var(--font-size-base); /* 16px - 小さめ */
  font-weight: 400;
  color: #666;
  margin-bottom: 2rem;
}

.c-section__more {
  text-align: center;
  margin-top: 5rem;
}

/* --- c-button --- */
.c-button {
  display: inline-block;
  background: linear-gradient(
    135deg,
    var(--main-color) 0%,
    var(--sub-color) 100%
  );
  color: var(--white) !important;
  padding: 1.4rem 3.5rem;
  border-radius: 5rem;
  font-weight: 700;
  transition: transform var(--transition), box-shadow var(--transition),
    background var(--transition);
  box-shadow: var(--shadow-light);
  border: none;
  cursor: pointer;
  text-decoration: none;
}

.c-button:hover {
  background: linear-gradient(
    135deg,
    var(--sub-color) 0%,
    var(--main-color) 100%
  );
  color: var(--white) !important;
  transform: translateY(-0.3rem);
  box-shadow: 0 0.7rem 2rem rgba(3, 23, 63, 0.3);
}

.c-button--secondary {
  background: var(--accent-color);
  color: var(--main-color) !important;
  border: none;
}

.c-button--secondary:hover {
  background: linear-gradient(135deg, #ffb347 0%, var(--accent-color) 100%);
  color: var(--white) !important;
  box-shadow: 0 0.7rem 2rem rgba(252, 161, 0, 0.3);
}

/* --- c-header (ドロップダウン機能付き) --- */
.c-header {
  background-color: var(--white);
  height: var(--header-height);
  position: fixed;
  width: 100%;
  top: 0;
  left: 0;
  z-index: 1000;
  box-shadow: 0 0.2rem 1rem rgba(0, 0, 0, 0.05);
}

@media screen and (max-width: 767px) {
  .c-header {
    height: var(--header-height-sp);
  }
}

.c-header__container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
  padding: 0 2rem;
  max-width: 140rem;
  margin: 0 auto;
}

.c-header__logo {
  display: block;
  text-decoration: none;
  transition: all 0.5s;
}

.c-header__logo:hover {
  opacity: 0.7;
}

.c-header__logo img {
  width: 28.5rem;
  height: auto;
  display: block;
}

@media screen and (max-width: 767px) {
  .c-header__logo img {
    width: 12.5rem;
  }
}

.c-header__nav {
  display: flex;
  align-items: center;
}

.c-header__nav ul {
  display: flex;
  list-style: none;
  gap: 0.8rem;
  margin: 0;
  padding: 0;
  flex-wrap: nowrap;
}

.c-header__nav li {
  position: relative;
  flex-shrink: 0;
}

.c-header__nav a {
  color: var(--main-color);
  font-weight: 600;
  font-size: 1.6rem;
  padding: 0.6rem 0.8rem;
  position: relative;
  display: block;
  text-decoration: none;
  transition: color var(--transition);
  white-space: nowrap;
}

.c-header__nav a::after {
  content: "";
  position: absolute;
  bottom: -0.2rem;
  left: 1rem;
  right: 1rem;
  height: 0.2rem;
  background-color: var(--accent-color);
  transform: scaleX(0);
  transition: transform var(--transition);
}

.c-header__nav a:hover::after {
  transform: scaleX(1);
}

/* ドロップダウンメニュー */
.c-header__dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--white);
  min-width: 25rem;
  box-shadow: 0 0.8rem 2.5rem rgba(0, 0, 0, 0.15);
  border-radius: 0.8rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-1rem);
  transition: all var(--transition);
  z-index: 1001;
}

.c-header__nav li:hover .c-header__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.c-header__dropdown ul {
  flex-direction: column;
  gap: 0;
  padding: 1rem 0;
}

.c-header__dropdown li {
  position: static;
}

.c-header__dropdown a {
  padding: 1.2rem 2rem;
  font-weight: 600;
  font-size: 1.6rem;
  border-bottom: 0.1rem solid #f0f0f0;
}

.c-header__dropdown a:last-child {
  border-bottom: none;
}

.c-header__dropdown a:hover {
  background-color: var(--bg-light);
  color: var(--accent-color);
}

.c-header__dropdown a::after {
  display: none;
}

/* 特別なボタンスタイル */
.c-header__special-btn {
  background-color: var(--accent-color);
  color: var(--main-color) !important;
  border-radius: 2rem;
  padding: 0.8rem 1.6rem !important;
  font-size: 1.4rem;
  margin-left: 1.5rem;
}

.c-header__special-btn:hover {
  background-color: var(--main-color);
  color: var(--white) !important;
}

.c-header__special-btn::after {
  display: none;
}

.c-header__secure .fa-lock {
  margin-right: 0.5rem;
  color: var(--accent-color);
}

.c-header__hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 1001;
}

.c-header__hamburger span {
  display: block;
  width: 2.5rem;
  height: 0.3rem;
  background-color: var(--main-color);
  margin: 0.5rem 0;
  transition: all var(--transition);
}

/* ドロップダウンアイコン（デスクトップ用） */
@media (min-width: 76.9rem) {
  .c-header__nav li.has-dropdown > a::before {
    content: "+";
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-right: 0.5rem;
    transition: transform 0.3s ease;
    transform: rotate(0deg);
  }

  .c-header__nav li.has-dropdown:hover > a::before {
    transform: rotate(45deg);
  }
}

/* --- c-image-grid --- */
.c-image-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  margin-top: 3rem;
}

.c-image-grid__item {
  text-align: center;
}

.c-image-grid__title {
  font-size: 2rem;
  color: var(--main-color);
  margin-bottom: 2rem;
  font-weight: 700;
}

.c-image-grid__image {
  width: 100%;
  height: auto;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-medium);
  display: block;
}

.c-image-grid__text {
  margin-top: 1.5rem;
  color: #666;
  font-size: 1.6rem;
}

/* レスポンシブ対応 */
@media (max-width: 76.8rem) {
  .c-image-grid {
    grid-template-columns: 1fr;
    gap: 4rem;
  }
}

/* --- c-footer (拡張版) --- */
.c-footer {
  background-color: var(--main-color);
  color: var(--white);
  padding: 6rem 0 0;
}

.c-footer__container {
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  gap: 4rem;
  padding-bottom: 5rem;
  align-items: start;
}

.c-footer__logo-section {
  text-align: center;
}

.c-footer__logo {
  height: 7.5rem;
  width: auto;
  display: block;
  margin-bottom: 1rem;
}

.c-footer__info p {
  font-size: 1.6rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.8);
  text-align: left;
}

.c-footer__nav-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.c-footer__nav-group h4 {
  font-size: 1.6rem;
  margin-bottom: 1.5rem;
  color: var(--accent-color);
  font-weight: 700;
  text-align: left;
}

.c-footer__nav-group ul {
  list-style: none;
  margin: 0;
  padding: 0;
  text-align: left;
}

.c-footer__nav-group li {
  margin-bottom: 0.8rem;
}

.c-footer__nav-group a {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.6rem;
  transition: color var(--transition);
  text-decoration: none;
}

.c-footer__nav-group a:hover {
  color: var(--accent-color);
}

.c-footer__contact-section {
  text-align: left;
}

.c-footer__contact h4 {
  font-size: 1.6rem;
  margin-bottom: 1.5rem;
  color: var(--accent-color);
  font-weight: 700;
  text-align: left;
}

.c-footer__contact p {
  font-size: 1.6rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 1rem;
  text-align: left;
}

.c-footer__contact-buttons {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.c-footer__contact-button {
  display: inline-block;
  background-color: var(--accent-color);
  color: var(--main-color) !important;
  padding: 1.2rem 2rem;
  border-radius: 0.8rem;
  font-weight: 700;
  text-decoration: none;
  text-align: center;
  transition: all var(--transition);
  font-size: 1.4rem;
}

.c-footer__contact-button:hover {
  background-color: var(--white);
  color: var(--main-color) !important;
  transform: translateY(-0.2rem);
}

.c-footer__contact-button--secondary {
  background-color: transparent;
  color: var(--white) !important;
  border: 0.2rem solid var(--white);
}

.c-footer__contact-button--secondary:hover {
  background-color: var(--white);
  color: var(--main-color) !important;
}

.c-footer__endpolio {
  margin-top: 2rem;
}

.c-footer__endpolio-link {
  display: inline-block;
  transition: transform var(--transition), opacity var(--transition);
}

.c-footer__endpolio-link:hover {
  transform: scale(1.05);
  opacity: 0.8;
}

.c-footer__endpolio-logo {
  max-width: 6rem;
  height: auto;
  display: block;
}

.c-footer__copyright {
  text-align: center;
  padding: 2.5rem;
  border-top: 0.1rem solid hsla(0, 0%, 100%, 0.1);
  color: rgba(255, 255, 255, 0.6);
}

/* フッターのレスポンシブデザイン */
@media (max-width: 76.8rem) {
  .c-footer__container {
    grid-template-columns: 1fr;
    gap: 3rem;
    text-align: left;
  }

  .c-footer__logo-section {
    text-align: left;
    order: 1;
  }

  .c-footer__nav-section {
    order: 2;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

  .c-footer__contact-section {
    order: 3;
    text-align: left;
  }

  .c-footer__contact-buttons {
    flex-direction: row;
    gap: 1rem;
  }

  .c-footer__contact-button {
    flex: 1;
    font-size: 1.3rem;
    padding: 1rem 1.5rem;
  }
}

@media (max-width: 57.6rem) {
  .c-footer__nav-section {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .c-footer__contact-buttons {
    flex-direction: column;
  }

  .c-footer__contact-button {
    font-size: 1.4rem;
    padding: 1.2rem 2rem;
  }
}

/* --- c-breadcrumb --- */
.c-breadcrumb {
  padding: 2rem 0;
  background-color: calc((--bg-light) + 2rem);
}

.c-breadcrumb__list {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 1rem;
}

.c-breadcrumb__item {
  font-size: 1.6rem;
}

.c-breadcrumb__item:not(:last-child)::after {
  content: ">";
  margin-left: 1rem;
  color: #999;
}

.c-breadcrumb__link {
  color: var(--sub-color);
  transition: color var(--transition);
}

.c-breadcrumb__link:hover {
  color: var(--accent-color);
}

/* --- c-page-header --- */
.c-page-header {
  background: linear-gradient(
    135deg,
    var(--main-color) 0%,
    var(--sub-color) 100%
  );
  color: var(--white);
  padding: 8rem 0 6rem;
  text-align: center;
}

.c-page-header__title {
  font-size: 3.2rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  font-family: "Montserrat", sans-serif;
}

.c-page-header__subtitle {
  font-size: 1.4rem;
  opacity: 0.9;
}

/* --- c-article --- */
.c-article {
  background-color: var(--white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-light);
  padding: 4rem;
  margin-bottom: 3rem;
}

.c-article__header {
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 0.1rem solid #eee;
}

.c-article__title {
  font-size: 2.4rem;
  color: var(--main-color);
  margin-bottom: 1.5rem;
  font-weight: 700;
  line-height: 1.4;
}

.c-article__meta {
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.c-article__date {
  color: #666;
  font-size: 1.4rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.c-article__category {
  padding: 0.5rem 1.2rem;
  border-radius: 2rem;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--white);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.c-article__category--bulletin {
  background-color: var(--accent-color);
}

.c-article__category--news {
  background-color: var(--sub-color);
}

.c-article__content {
  font-size: 1.6rem;
  line-height: 1.8;
  margin-bottom: 3rem;
}

.c-article__content h3 {
  font-size: 2rem;
  color: var(--main-color);
  margin: 3rem 0 1.5rem 0;
  font-weight: 700;
}

.c-article__content p {
  margin-bottom: 2rem;
}

.c-article__content ul,
.c-article__content ol {
  margin: 2rem 0;
  padding-left: 2rem;
}

.c-article__content li {
  margin-bottom: 0.8rem;
}

.c-article__footer {
  border-top: 0.1rem solid #eee;
  padding-top: 2rem;
}

.c-article__share h3 {
  font-size: 1.6rem;
  color: var(--main-color);
  margin-bottom: 1rem;
}

.c-article__share-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.c-article__share-button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.5rem;
  border-radius: 0.5rem;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.4rem;
  transition: all var(--transition);
}

.c-article__share-button--twitter {
  background-color: #1da1f2;
  color: var(--white);
}

.c-article__share-button--twitter:hover {
  background-color: #0d8bd9;
  color: var(--white);
}

.c-article__share-button--facebook {
  background-color: #4267b2;
  color: var(--white);
}

.c-article__share-button--facebook:hover {
  background-color: #365899;
  color: var(--white);
}

.c-article__share-button--line {
  background-color: #00b900;
  color: var(--white);
}

.c-article__share-button--line:hover {
  background-color: #009900;
  color: var(--white);
}

.c-article__nav {
  text-align: center;
  margin-top: 3rem;
}

/* --- c-card-list --- */
.c-card-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.c-card-list__item {
  background-color: var(--white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-light);
  padding: 2rem;
  transition: all var(--transition);
}

.c-card-list__item:hover {
  box-shadow: var(--shadow-medium);
  transform: translateY(-0.2rem);
}

.c-card-list__date {
  color: #666;
  font-size: 1.2rem;
  font-family: "Montserrat", sans-serif;
  font-weight: 700;
}

.c-card-list__category {
  display: inline-block;
  padding: 0.3rem 0.8rem;
  border-radius: 1rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin: 0.5rem 0;
}

.c-card-list__category--bulletin {
  background-color: var(--accent-color);
}

.c-card-list__category--news {
  background-color: var(--sub-color);
}

.c-card-list__title {
  font-size: 1.4rem;
  margin: 1rem 0 0 0;
}

.c-card-list__title a {
  color: var(--main-color);
  text-decoration: none;
  font-weight: 600;
  transition: color var(--transition);
}

.c-card-list__title a:hover {
  color: var(--accent-color);
}

/* --- c-sidebar-widget --- */
.c-sidebar-widget {
  background-color: var(--white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-light);
  padding: 2.5rem;
  margin-bottom: 3rem;
}

.c-sidebar-widget__title {
  font-size: 1.8rem;
  color: var(--main-color);
  margin-bottom: 2rem;
  font-weight: 700;
  border-bottom: 0.2rem solid var(--accent-color);
  padding-bottom: 1rem;
}

.c-sidebar-widget__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.c-sidebar-widget__item {
  border-bottom: 0.1rem solid #eee;
  padding: 1.5rem 0;
}

.c-sidebar-widget__item:last-child {
  border-bottom: none;
}

.c-sidebar-widget__date {
  color: #666;
  font-size: 1.2rem;
  font-family: "Montserrat", sans-serif;
  font-weight: 700;
  display: block;
  margin-bottom: 0.5rem;
}

.c-sidebar-widget__link {
  color: var(--main-color);
  text-decoration: none;
  font-size: 1.4rem;
  font-weight: 600;
  line-height: 1.4;
  transition: color var(--transition);
}

.c-sidebar-widget__link:hover {
  color: var(--accent-color);
}

.c-sidebar-widget__category-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.c-sidebar-widget__category-item {
  border-bottom: 0.1rem solid #eee;
}

.c-sidebar-widget__category-item:last-child {
  border-bottom: none;
}

.c-sidebar-widget__category-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.2rem 0;
  color: var(--main-color);
  text-decoration: none;
  font-size: 1.4rem;
  font-weight: 600;
  transition: color var(--transition);
}

.c-sidebar-widget__category-link:hover {
  color: var(--accent-color);
}

.c-sidebar-widget__count {
  color: #666;
  font-size: 1.2rem;
  font-weight: 400;
}

/* --- c-table --- */
.c-table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  background-color: var(--white);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-light);
}

.c-table th,
.c-table td {
  padding: 1.5rem;
  text-align: left;
  border-bottom: 0.1rem solid #eee;
}

.c-table th {
  background-color: var(--bg-light);
  font-weight: 700;
  color: var(--main-color);
  width: 20%;
}

.c-table td {
  color: var(--text-color);
}

.c-table tr:last-child th,
.c-table tr:last-child td {
  border-bottom: none;
}

/* 理事・役員表専用スタイル */
.c-table--officers {
  max-width: 80rem;
  margin: 0 auto;
}

.c-table--officers th {
  width: 25%;
  min-width: 20rem;
}

.c-table--officers td {
  width: 35%;
}

.c-table--officers th,
.c-table--officers td {
  padding: 1.2rem 1.5rem;
  vertical-align: middle;
}

/* レスポンシブ対応 */
@media (max-width: 76.8rem) {
  .c-article {
    padding: 2.5rem;
  }

  .c-article__title {
    font-size: 2rem;
  }

  .c-article__meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .c-article__share-buttons {
    flex-direction: column;
  }

  .c-article__share-button {
    justify-content: center;
  }

  .l-two-column {
    flex-direction: column;
    gap: 1rem;
  }

  .l-sidebar {
    width: 100%;
  }

  .c-sidebar-widget {
    padding: 2rem;
  }

  .c-table {
    font-size: 1.4rem;
  }

  .c-table th,
  .c-table td {
    padding: 1rem;
  }

  .c-table th {
    width: 30%;
  }
}

@media (max-width: 57.6rem) {
  .c-article {
    padding: 2rem;
  }

  .c-article__title {
    font-size: 1.8rem;
  }

  .c-article__content {
    font-size: 1.5rem;
  }

  .c-card-list {
    gap: 1.5rem;
  }

  .c-card-list__item {
    padding: 1.5rem;
  }

  .c-sidebar-widget {
    padding: 1.5rem;
  }

  .c-sidebar-widget__title {
    font-size: 1.6rem;
  }

  .c-table {
    display: block;
    overflow-x: auto;
  }

  /* 事務局情報テーブル用のモバイル対応 */
  .c-table th,
  .c-table td {
    white-space: normal;
    word-wrap: break-word;
    word-break: break-word;
    hyphens: auto;
  }

  .c-table th {
    width: 25%;
    min-width: 8rem;
    vertical-align: top;
  }

  .c-table td {
    width: 75%;
    line-height: 1.6;
  }

  /* 小画面でのテーブル追加調整 */
  .c-table th,
  .c-table td {
    padding: 0.8rem;
    font-size: 1.4rem;
  }

  .c-table th {
    width: 30%;
    min-width: 7rem;
  }

  .c-table td {
    width: 70%;
  }

  /* 理事・役員表のモバイル対応 */
  .c-table--officers {
    max-width: 100%;
  }

  .c-table--officers th {
    width: 60%;
    min-width: 15rem;
  }

  .c-table--officers td {
    width: 40%;
  }

  .c-table--officers th,
  .c-table--officers td {
    padding: 1rem 0.8rem;
    font-size: 1.4rem;
  }
}

.c-article__date {
  font-family: "Montserrat", sans-serif;
  font-weight: 700;
}

.c-article__category {
  padding: 0.4rem 1.2rem;
  background-color: var(--accent-color);
  color: var(--white);
  border-radius: 2rem;
  font-size: 1.4rem;
  font-weight: 700;
}

.c-article__content {
  line-height: 1.8;
}

.c-article__content h2 {
  font-size: 2rem;
  color: var(--main-color);
  margin: 4rem 0 2rem;
  font-weight: 700;
}

.c-article__content h3 {
  font-size: 2rem;
  color: var(--main-color);
  margin: 3rem 0 1.5rem;
  font-weight: 700;
}

.c-article__content p {
  margin-bottom: 2rem;
}

.c-article__content ul,
.c-article__content ol {
  margin: 2rem 0;
  padding-left: 3rem;
}

.c-article__content li {
  margin-bottom: 0.8rem;
}

/* --- c-card-list --- */
.c-card-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(30rem, 1fr));
  gap: 3rem;
}

.c-card-list__item {
  background-color: var(--white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-light);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}

.c-card-list__item:hover {
  transform: translateY(-0.5rem);
  box-shadow: var(--shadow-medium);
}

.c-card-list__image {
  width: 100%;
  height: auto;
  object-fit: contain;
  border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.c-card-list__content {
  padding: 1.6rem;
}

.c-card-list__title {
  font-size: 2rem;
  color: var(--main-color);
  margin-bottom: 1rem;
  font-weight: 700;
}

.c-card-list__text {
  color: #666;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.c-card-list__meta {
  font-size: 1.6rem;
  color: #999;
}

/* --- c-table --- */
.c-table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--white);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-light);
}

.c-table__header {
  background-color: var(--main-color);
  color: var(--white);
}

.c-table__header th {
  padding: 2rem;
  text-align: left;
  font-weight: 700;
}

.c-table__body tr {
  border-bottom: 0.1rem solid #eee;
}

.c-table__body tr:hover {
  background-color: var(--bg-light);
}

.c-table__body td {
  padding: 2rem;
}

/* --- c-pagination --- */
.c-pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  margin: 5rem 0;
}

.c-pagination__item {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 4rem;
  height: 4rem;
  border-radius: 50%;
  background-color: var(--white);
  border: 0.1rem solid #ddd;
  color: var(--text-color);
  font-weight: 700;
  transition: all var(--transition);
}

.c-pagination__item:hover {
  background-color: var(--accent-color);
  color: var(--white);
  border-color: var(--accent-color);
}

.c-pagination__item--current {
  background-color: var(--main-color);
  color: var(--white);
  border-color: var(--main-color);
}

/* --- c-form --- */
.c-form {
  background-color: var(--white);
  padding: 4rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-light);
}

.c-form__group {
  margin-bottom: 2.5rem;
}

.c-form__label {
  display: block;
  margin-bottom: 0.8rem;
  font-weight: 700;
  color: var(--main-color);
}

.c-form__input,
.c-form__textarea,
.c-form__select {
  width: 100%;
  padding: 1.2rem 1.5rem;
  border: 0.1rem solid #ddd;
  border-radius: 0.5rem;
  font-size: 1.6rem;
  transition: border-color var(--transition);
}

/* .c-form__input:focus,
.c-form__textarea:focus,
.c-form__select:focus {
  outline: none;
  border-color: var(--accent-color);
} */

.c-form__textarea {
  min-height: 12rem;
  resize: vertical;
}

.c-form__submit {
  background-color: var(--accent-color);
  color: var(--main-color);
  padding: 1.5rem 4rem;
  border: none;
  border-radius: 5rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
}

.c-form__submit:hover {
  transform: translateY(-0.2rem);
  box-shadow: 0 0.5rem 1.5rem rgba(0, 0, 0, 0.2);
}

/* --- c-tabs --- */
.c-tabs {
  margin-bottom: 3rem;
}

.c-tabs__nav {
  display: flex;
  border-bottom: 0.1rem solid #ddd;
  margin-bottom: 3rem;
}

.c-tabs__item {
  padding: 1.5rem 2.5rem;
  background-color: transparent;
  border: none;
  cursor: pointer;
  font-weight: 700;
  color: #666;
  transition: color var(--transition);
  position: relative;
  font-size: 1.6rem;
}

.c-tabs__item:hover {
  color: var(--accent-color);
}

.c-tabs__item--active {
  color: var(--main-color);
}

.c-tabs__item--active::after {
  content: "";
  position: absolute;
  bottom: -0.1rem;
  left: 0;
  right: 0;
  height: 0.2rem;
  background-color: var(--accent-color);
}

.c-tabs__content {
  display: none;
}

.c-tabs__content--active {
  display: block;
}

/* --- c-accordion --- */
.c-accordion {
  border: 0.1rem solid #ddd;
  border-radius: var(--border-radius);
  overflow: hidden;
}

.c-accordion__item {
  border-bottom: 0.1rem solid #ddd;
}

.c-accordion__item:last-child {
  border-bottom: none;
}

.c-accordion__header {
  padding: 2rem;
  background-color: var(--bg-light);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 700;
  transition: background-color var(--transition);
}

.c-accordion__header:hover {
  background-color: #e9ecef;
}

.c-accordion__icon {
  transition: transform var(--transition);
}

.c-accordion__item--active .c-accordion__icon {
  transform: rotate(180deg);
}

.c-accordion__content {
  padding: 0 2rem;
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition), padding var(--transition);
}

.c-accordion__item--active .c-accordion__content {
  padding: 2rem;
  max-height: 50rem;
}

/* --- c-modal --- */
.c-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
}

.c-modal--active {
  opacity: 1;
  visibility: visible;
}

.c-modal__content {
  background-color: var(--white);
  padding: 4rem;
  border-radius: var(--border-radius);
  max-width: 60rem;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
  position: relative;
}

.c-modal__close {
  position: absolute;
  top: 1.5rem;
  right: 2rem;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: #999;
}

.c-modal__close:hover {
  color: var(--text-color);
}

/* ===================================
   Utility Classes
   =================================== */

/* --- u-text --- */
.u-text-center {
  text-align: center;
}
.u-text-left {
  text-align: left;
}
.u-text-right {
  text-align: right;
}

/* --- u-margin --- */
.u-mt-0 {
  margin-top: 0 !important;
}
.u-mt-10 {
  margin-top: 1rem !important;
}
.u-mt-20 {
  margin-top: 2rem !important;
}
.u-mt-30 {
  margin-top: 3rem !important;
}
.u-mt-40 {
  margin-top: 4rem !important;
}
.u-mt-50 {
  margin-top: 5rem !important;
}

.u-mb-0 {
  margin-bottom: 0 !important;
}
.u-mb-10 {
  margin-bottom: 1rem !important;
}
.u-mb-20 {
  margin-bottom: 2rem !important;
}
.u-mb-30 {
  margin-bottom: 3rem !important;
}
.u-mb-40 {
  margin-bottom: 4rem !important;
}
.u-mb-50 {
  margin-bottom: 5rem !important;
}

/* --- u-padding --- */
.u-pt-0 {
  padding-top: 0 !important;
}
.u-pt-10 {
  padding-top: 1rem !important;
}
.u-pt-20 {
  padding-top: 2rem !important;
}
.u-pt-30 {
  padding-top: 3rem !important;
}
.u-pt-40 {
  padding-top: 4rem !important;
}
.u-pt-50 {
  padding-top: 5rem !important;
}

.u-pb-0 {
  padding-bottom: 0 !important;
}
.u-pb-10 {
  padding-bottom: 1rem !important;
}
.u-pb-20 {
  padding-bottom: 2rem !important;
}
.u-pb-30 {
  padding-bottom: 3rem !important;
}
.u-pb-40 {
  padding-bottom: 4rem !important;
}
.u-pb-50 {
  padding-bottom: 5rem !important;
}

/* --- u-display --- */
.u-hidden {
  display: none !important;
}
.u-block {
  display: block !important;
}
.u-inline {
  display: inline !important;
}
.u-inline-block {
  display: inline-block !important;
}
.u-flex {
  display: flex !important;
}

/* --- u-color --- */
.u-color-main {
  color: var(--main-color) !important;
}
.u-color-sub {
  color: var(--sub-color) !important;
}
.u-color-accent {
  color: var(--accent-color) !important;
}
.u-color-white {
  color: var(--white) !important;
}
.u-text-white {
  color: var(--white) !important;
}

/* --- u-bg --- */
.u-bg-main {
  background-color: var(--main-color);
}
.u-bg-sub {
  background-color: var(--sub-color);
}
.u-bg-accent {
  background-color: var(--accent-color);
}
.u-bg-light {
  background-color: var(--bg-light);
}
.u-bg-white {
  background-color: var(--white);
}

/* ===================================
   Page-Specific Styles
   =================================== */

/* --- p-about (クラブ概要ページ) --- */
.p-about__intro {
  background: linear-gradient(135deg, var(--bg-light) 0%, var(--white) 100%);
  padding: 6rem 0;
}

.p-about__history {
  padding: 8rem 0;
}

.p-about__timeline {
  position: relative;
  padding-left: 4rem;
}

.p-about__timeline::before {
  content: "";
  position: absolute;
  left: 2rem;
  top: 0;
  bottom: 0;
  width: 0.2rem;
  background-color: var(--accent-color);
}

.p-about__timeline-item {
  position: relative;
  margin-bottom: 4rem;
  padding-left: 4rem;
}

.p-about__timeline-item::before {
  content: "";
  position: absolute;
  left: -2.8rem;
  top: 0.5rem;
  width: 1.2rem;
  height: 1.2rem;
  background-color: var(--accent-color);
  border-radius: 50%;
}

.p-about__year {
  font-family: "Montserrat", sans-serif;
  font-weight: 700;
  color: var(--main-color);
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

/* --- p-news (新着情報ページ) --- */
.p-news__filter {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 4rem;
  justify-content: center;
  flex-wrap: wrap;
}

.p-news__filter-btn {
  padding: 1rem 2rem;
  background-color: var(--white);
  border: 0.1rem solid #ddd;
  border-radius: 2.5rem;
  cursor: pointer;
  transition: all var(--transition);
  font-weight: 700;
}

.p-news__filter-btn:hover,
.p-news__filter-btn--active {
  background-color: var(--accent-color);
  color: var(--white);
  border-color: var(--accent-color);
}

/* --- p-contact (お問い合わせページ) --- */
.p-contact__info {
  background-color: var(--bg-light);
  padding: 4rem;
  border-radius: var(--border-radius);
  margin-bottom: 4rem;
}

.p-contact__info-item {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.p-contact__info-icon {
  width: 4rem;
  height: 4rem;
  background-color: var(--accent-color);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* --- p-member (会員限定ページ) --- */
.p-member__login {
  max-width: 40rem;
  margin: 0 auto;
  padding: 6rem 0;
}

.p-member__notice {
  background-color: #fff3cd;
  border: 0.1rem solid #ffeaa7;
  color: #856404;
  padding: 1.5rem;
  border-radius: 0.5rem;
  margin-bottom: 3rem;
}

/* ===================================
   Responsive Design Extensions
   =================================== */

@media (max-width: 76.8rem) {
  .l-two-column {
    flex-direction: column;
  }

  .l-sidebar {
    width: 100%;
  }

  .c-page-header__title {
    font-size: 2rem;
  }

  .c-article {
    padding: 2.5rem;
  }

  .c-card-list {
    grid-template-columns: 1fr;
  }

  .c-tabs__nav {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
  }

  .c-tabs__nav::-webkit-scrollbar {
    display: none;
  }

  .c-tabs__item {
    flex-shrink: 0;
    white-space: nowrap;
    padding: 1.2rem 2rem;
    font-size: 1.4rem;
  }

  .c-modal__content {
    padding: 2.5rem;
    width: 95%;
  }

  .p-news__filter {
    justify-content: flex-start;
  }

  .p-about__timeline {
    padding-left: 2rem;
  }

  .p-about__timeline-item {
    padding-left: 2.5rem;
  }

  /* Hero Components Responsive */
  .c-hero-slider {
    height: 60vh;
    min-height: 40rem;
    margin-top: 3rem;
  }

  .c-hero-slider__title {
    font-size: 2.2rem;
  }

  .c-hero-slider__subtitle {
    font-size: 1.4rem;
  }

  .c-hero-slider__arrow {
    width: 4rem;
    height: 4rem;
    font-size: 1.6rem;
  }

  .c-hero-slider__arrow--prev {
    left: 1.5rem;
  }

  .c-hero-slider__arrow--next {
    right: 1.5rem;
  }

  .c-hero-sub {
    padding: 8rem 0 6rem;
  }

  .c-hero-sub__title {
    font-size: 2.2rem;
  }

  .c-hero-sub__subtitle {
    font-size: 1.6rem;
  }

  .c-hero-sub__breadcrumb {
    flex-wrap: wrap;
    justify-content: center;
  }

  .c-hero-page {
    padding: 6rem 0 4rem;
  }

  .c-hero-page__title {
    font-size: 1.6rem;
  }

  .c-hero-page__subtitle {
    font-size: 1.6rem;
  }

  .c-hero-page__breadcrumb {
    flex-wrap: wrap;
    justify-content: center;
  }

  .c-hero-simple {
    padding: 4rem 0 3rem;
  }

  .c-hero-simple__title {
    font-size: 2.4rem;
  }

  .c-hero-simple__breadcrumb {
    flex-wrap: wrap;
    justify-content: center;
  }

  /* Header Responsive */
  .c-header__nav {
    position: fixed;
    top: var(--header-height-sp);
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.98);
    height: calc(100vh - var(--header-height-sp));
    transform: translateX(100%);
    transition: transform var(--transition);
    backdrop-filter: blur(1rem);
    overflow-y: auto;
    z-index: 999;
    display: block;
  }

  .c-header__nav--active {
    transform: translateX(0);
  }

  .c-header__nav ul {
    flex-direction: column;
    align-items: stretch;
    padding: 2rem 0;
    gap: 0;
  }

  .c-header__nav li {
    width: 100%;
    border-bottom: 0.1rem solid #eee;
  }

  .c-header__nav li:last-child {
    margin-top: 2rem;
    border-bottom: none;
  }

  .c-header__nav > ul > li > a {
    padding: 2rem;
    text-align: center;
    width: 100%;
    font-size: 1.6rem;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    column-gap: 1rem;
  }

  .c-header__nav .c-header__special-btn {
    width: 80%;
    margin: 0 auto;
  }

  /* ドロップダウンをアコーディオン化 */
  .c-header__dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    background-color: var(--bg-light);
    border-radius: 0;
    margin-top: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition);
  }

  .c-header__dropdown ul {
    padding: 0;
    opacity: 0;
  }

  .has-dropdown.active .c-header__dropdown ul {
    opacity: 1;
  }

  .c-header__dropdown a {
    padding: 1.5rem 3rem;
    font-size: 1.4rem;
    color: var(--sub-color);
    border-bottom: 0.1rem solid #f0f0f0;
    text-align: center;
  }

  .c-header__dropdown a:hover {
    background-color: #f8f9fa;
    color: var(--accent-color);
  }

  .c-header__dropdown li:last-child {
    margin-top: 0;
  }

  .c-header__hamburger {
    display: block;
  }

  .c-header__special-btn {
    margin-left: 0;
    margin-top: 1rem;
    font-size: 1.4rem;
  }

  /* アコーディオン矢印 */
  .c-header__nav > ul > li:has(.c-header__dropdown) > a::after {
    content: "▼";
    font-size: 1.2rem;
    transition: transform var(--transition);
  }

  .c-header__nav > ul > li.active > a::after {
    transform: rotate(180deg);
  }

  /* Footer Responsive */
  .c-footer__container {
    grid-template-columns: 1fr;
    gap: 3rem;
    text-align: center;
  }

  .c-footer__nav-section {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  /* Greeting Component Responsive */
  .c-greeting__content {
    flex-direction: column;
    gap: 3rem;
    text-align: center;
  }

  .c-greeting__photo {
    flex: none;
    width: 25rem;
    margin: 0 auto;
  }

  .c-greeting__text {
    width: 100%;
  }

  /* Activity Cards Responsive - タブレットは2列 */
  .c-activity-cards__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }

  /* Link Grid Responsive - タブレットは1列 */
  .c-link-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}

@media (max-width: 48rem) {
  .c-form {
    padding: 2.5rem;
  }

  .c-pagination {
    gap: 0.5rem;
  }

  .c-pagination__item {
    width: 3.5rem;
    height: 3.5rem;
  }

  /* Hero Components Mobile */
  .c-hero-slider__title {
    font-size: 1.8rem;
  }

  .c-hero-slider__subtitle {
    font-size: 1.6rem;
  }

  .c-hero-slider__button {
    padding: 1.2rem 3rem;
    font-size: 1.6rem;
  }

  .c-hero-sub__title {
    font-size: 2.2rem;
  }

  .c-hero-sub__subtitle {
    font-size: 1.6rem;
  }

  .c-hero-page__title {
    font-size: 1.4rem;
  }

  .c-hero-page__subtitle {
    font-size: 1.4rem;
  }

  /* Activity Cards Mobile - 完全1カラム化 */
  .c-activity-cards__grid {
    grid-template-columns: 1fr !important;
    gap: 2rem;
  }

  .c-activity-cards__item {
    padding: 2.5rem;
    max-width: 100%;
  }

  .c-activity-cards__icon {
    font-size: 2.5rem;
  }

  .c-activity-cards__logo {
    width: 5rem;
    height: 5rem;
  }

  .c-activity-cards__title {
    font-size: 1.8rem;
  }

  /* Link Grid Mobile - 完全1カラム化 */
  .c-link-grid {
    grid-template-columns: 1fr !important;
    gap: 2rem;
  }

  .c-link-grid__content {
    padding: 2rem;
  }

  .c-link-grid__title {
    font-size: 2rem;
  }

  /* News List Mobile */
  .c-news-list__item {
    padding: 1.5rem;
    row-gap: 0.6rem;
    column-gap: 1.5rem;
  }

  .c-news-list__date {
    font-size: 1.4rem;
    min-width: auto;
  }

  .c-news-list__link {
    font-size: 1.6rem;
    width: 100%;
  }

  /* Schedule List Mobile */
  .c-schedule-list {
    padding-left: 2rem;
  }

  .c-schedule-list__item {
    gap: 1.5rem;
  }

  .c-schedule-list__date {
    font-size: 1.6rem;
    min-width: auto;
  }

  .c-schedule-list__event {
    font-size: 1.6rem;
  }

  /* Greeting Mobile - 画像横いっぱい */
  .c-greeting__content {
    flex-direction: column;
    gap: 2rem;
    text-align: center;
  }

  .c-greeting__photo {
    width: 100%;
    max-width: 100%;
    margin: 0;
  }

  .c-greeting__photo img {
    width: 100%;
    height: auto;
    max-width: 40rem;
    margin: 0 auto;
    display: block;
  }

  .c-greeting__text {
    width: 100%;
  }

  .c-greeting__text h3 {
    font-size: 1.8rem;
  }

  /* Table Mobile */
  .c-table {
    font-size: 1.4rem;
  }

  .c-table__header th,
  .c-table__body td {
    padding: 1.2rem 0.8rem;
  }

  /* Button Mobile */
  .c-button {
    padding: 1.2rem 2.5rem;
    font-size: 1.6rem;
  }

  /* Section Mobile */
  .c-section__title {
    font-size: 2.4rem;
  }

  .c-section__subtitle {
    font-size: 1.6rem;
  }
}

@media screen and (min-width: 768px) {
  .c-header__nav li.has-dropdown > a::before {
    display: none;
  }
}

/* --- 会長方針ページ専用コンポーネント --- */

.c-article__author {
  color: var(--main-color);
  font-weight: 700;
  font-size: 1.6rem;
}

.c-article__divider {
  border: none;
  border-top: 0.2rem solid var(--accent-color);
  margin: 4rem 0;
  width: 10rem;
}

/* --- c-president-photo --- */
.c-president-photo {
  float: right;
  margin: 0 0 2rem 3rem;
  text-align: center;
  max-width: 25rem;
}

.c-president-photo__image {
  width: 100%;
  height: auto;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-medium);
  margin-bottom: 1rem;
}

.c-president-photo__caption {
  background-color: var(--bg-light);
  padding: 1.5rem;
  border-radius: var(--border-radius);
}

.c-president-photo__title {
  font-size: 1.4rem;
  color: #666;
  margin-bottom: 0.5rem;
}

.c-president-photo__name {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--main-color);
}

/* --- c-slogan --- */
.c-slogan {
  background: linear-gradient(
    135deg,
    var(--main-color) 0%,
    var(--sub-color) 100%
  );
  color: var(--white);
  padding: 3rem;
  border-radius: var(--border-radius);
  text-align: center;
  margin: 3rem 0;
  position: relative;
}

.c-slogan::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.05)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.05)"/><circle cx="50" cy="10" r="0.5" fill="rgba(255,255,255,0.03)"/><circle cx="20" cy="80" r="0.5" fill="rgba(255,255,255,0.03)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
  opacity: 0.3;
  border-radius: var(--border-radius);
}

.c-slogan__text {
  font-size: 2.4rem;
  font-weight: 700;
  font-family: "Montserrat", sans-serif;
  letter-spacing: 0.1rem;
  position: relative;
  z-index: 2;
}

/* --- c-priority-list --- */
.c-priority-list {
  list-style: none;
  counter-reset: priority-counter;
  margin: 3rem 0;
  padding: 0;
}

.c-priority-list__item {
  counter-increment: priority-counter;
  background-color: var(--white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-light);
  padding: 3rem;
  margin-bottom: 2rem;
  position: relative;
  border-left: 0.5rem solid var(--accent-color);
}

.c-priority-list__item::before {
  content: counter(priority-counter);
  position: absolute;
  top: -1rem;
  left: -1rem;
  width: 4rem;
  height: 4rem;
  background-color: var(--accent-color);
  color: var(--main-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  font-weight: 700;
  font-family: "Montserrat", sans-serif;
}

.c-priority-list__item h3 {
  font-size: 2rem;
  color: var(--main-color);
  margin-bottom: 1.5rem;
  font-weight: 700;
  padding-left: 2rem;
}

.c-priority-list__item p {
  color: var(--text-color);
  line-height: 1.7;
  padding-left: 2rem;
  margin: 0;
}

/* レスポンシブ対応 */
@media (max-width: 76.8rem) {
  .c-president-photo {
    float: none;
    margin: 2rem auto;
    max-width: 20rem;
  }

  .c-slogan__text {
    font-size: 2rem;
  }

  .c-priority-list__item {
    padding: 2rem;
  }

  .c-priority-list__item h3 {
    font-size: 1.8rem;
    padding-left: 1rem;
  }

  .c-priority-list__item p {
    padding-left: 1rem;
  }
}

@media (max-width: 57.6rem) {
  .c-president-photo {
    max-width: 18rem;
  }

  .c-slogan__text {
    font-size: 1.8rem;
  }

  .c-priority-list__item {
    padding: 1.5rem;
  }

  .c-priority-list__item::before {
    width: 3rem;
    height: 3rem;
    font-size: 1.4rem;
  }

  .c-priority-list__item h3 {
    font-size: 1.6rem;
    padding-left: 0.5rem;
  }

  .c-priority-list__item p {
    padding-left: 0.5rem;
  }
}

/* ===================================
   Breadcrumb Component
   =================================== */
.c-breadcrumb {
  background-color: var(--bg-light);
  border-bottom: 1px solid #e9ecef;
  padding-top: calc(var(--header-height) + 2rem);
  bottom: 1.2rem;
}

.c-breadcrumb__list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: var(--font-size-sm);
}

.c-breadcrumb__item {
  display: flex;
  align-items: center;
  color: var(--text-color);
}

.c-breadcrumb__item:not(:last-child)::after {
  content: ">";
  margin: 0 0.8rem;
  color: #999;
  font-size: 1.2rem;
}

.c-breadcrumb__link {
  color: var(--sub-color);
  text-decoration: none;
  transition: var(--transition);
}

.c-breadcrumb__link:hover {
  color: var(--accent-color);
  text-decoration: underline;
}

.c-breadcrumb__item:last-child {
  color: var(--text-color);
  font-weight: 500;
}

/* Responsive */
@media (max-width: 76.8rem) {
  .c-breadcrumb {
    padding-top: calc(var(--header-height-sp) + 2rem);
    padding-bottom: 2rem;
  }

  .c-breadcrumb__list {
    font-size: 1.3rem;
  }

  .c-breadcrumb__item:not(:last-child)::after {
    margin: 0 0.6rem;
  }
}

@media (max-width: 48rem) {
  .c-breadcrumb__list {
    font-size: 1.2rem;
  }

  .c-breadcrumb__item:not(:last-child)::after {
    margin: 0 0.4rem;
  }
}
/* ===================================
   Annual Schedule Page Components
   =================================== */

/* スケジュール画像コンポーネント */
.c-schedule-image {
  text-align: center;
  margin-bottom: 4rem;
}

.c-schedule-image__img {
  max-width: 100%;
  height: auto;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-medium);
  margin-bottom: 1.6rem;
}

.c-schedule-image__caption {
  font-size: var(--font-size-lg);
  color: var(--text-color);
  font-weight: 500;
  margin: 0;
}

/* PDFダウンロードボタン */
.c-pdf-download {
  text-align: center;
  margin: 4rem 0;
}

.c-button--pdf {
  background: linear-gradient(135deg, #d32f2f 0%, #b71c1c 100%);
  color: var(--white);
  padding: 1.6rem 3.2rem;
  font-size: var(--font-size-lg);
  font-weight: 600;
  border-radius: var(--border-radius);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 1.2rem;
  transition: var(--transition);
  box-shadow: var(--shadow-medium);
}

.c-button--pdf:hover {
  background: linear-gradient(135deg, #b71c1c 0%, #d32f2f 100%);
  transform: translateY(-2px);
  box-shadow: var(--shadow-heavy);
  color: var(--white);
  text-decoration: none;
}

.c-button--pdf i {
  font-size: 2rem;
  color: var(--white);
}

/* ページコンテンツ */
.c-page-content {
  margin-top: 4rem;
  padding-top: 4rem;
  border-top: 1px solid #e9ecef;
}

.c-page-content h2 {
  color: var(--main-color);
  margin-bottom: 2.4rem;
}

.c-page-content h3 {
  color: var(--sub-color);
  margin-bottom: 1.6rem;
}

/* 既存の画像グリッドスタイルの調整 */
.c-image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 3rem;
  margin-bottom: 4rem;
}

.c-image-grid__item {
  text-align: center;
}

.c-image-grid__title {
  font-size: var(--font-size-xl);
  color: var(--main-color);
  margin-bottom: 1.6rem;
  font-weight: 600;
}

.c-image-grid__image {
  width: 100%;
  height: auto;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-medium);
  margin-bottom: 1.6rem;
}

.c-image-grid__text {
  font-size: var(--font-size-base);
  color: var(--text-color);
  margin: 0;
}

/* レスポンシブ対応 */
@media (max-width: 76.8rem) {
  .c-schedule-image__caption {
    font-size: var(--font-size-base);
  }

  .c-button--pdf {
    padding: 1.4rem 2.4rem;
    font-size: var(--font-size-base);
  }

  .c-image-grid {
    gap: 2rem;
  }

  .c-image-grid__title {
    font-size: var(--font-size-lg);
  }
}

@media (max-width: 48rem) {
  .c-schedule-image {
    margin-bottom: 3rem;
  }

  .c-pdf-download {
    margin: 3rem 0;
  }

  .c-button--pdf {
    padding: 1.2rem 2rem;
    font-size: var(--font-size-sm);
    gap: 0.8rem;
  }

  .c-button--pdf i {
    font-size: 1.6rem;
  }

  .c-image-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .c-page-content {
    margin-top: 3rem;
    padding-top: 3rem;
  }
}
/* 画像グリッド内のPDFボタン */
.c-image-grid__pdf {
  margin-top: 1.6rem;
}

.c-button--small {
  padding: 1rem 2rem;
  font-size: var(--font-size-sm);
  gap: 0.8rem;
}

.c-button--small i {
  font-size: 1.4rem;
}

/* レスポンシブ対応 */
@media (max-width: 48rem) {
  .c-image-grid__pdf {
    margin-top: 1.2rem;
  }

  .c-button--small {
    padding: 0.8rem 1.6rem;
    font-size: 1.2rem;
    gap: 0.6rem;
  }

  .c-button--small i {
    font-size: 1.2rem;
  }
}
/* 準備中プレースホルダー */
.c-image-grid__placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-light);
  border: 2px dashed #ddd;
  border-radius: var(--border-radius);
  padding: 4rem 2rem;
  margin-bottom: 1.6rem;
  min-height: 300px;
}

.c-image-grid__placeholder i {
  font-size: 4rem;
  color: #999;
  margin-bottom: 1.6rem;
}

.c-image-grid__preparing {
  font-size: var(--font-size-xl);
  color: #666;
  font-weight: 500;
  margin: 0;
}

/* レスポンシブ対応 */
@media (max-width: 76.8rem) {
  .c-image-grid__placeholder {
    padding: 3rem 1.5rem;
    min-height: 250px;
  }

  .c-image-grid__placeholder i {
    font-size: 3rem;
    margin-bottom: 1.2rem;
  }

  .c-image-grid__preparing {
    font-size: var(--font-size-lg);
  }
}

@media (max-width: 48rem) {
  .c-image-grid__placeholder {
    padding: 2.5rem 1rem;
    min-height: 200px;
  }

  .c-image-grid__placeholder i {
    font-size: 2.5rem;
    margin-bottom: 1rem;
  }

  .c-image-grid__preparing {
    font-size: var(--font-size-base);
  }
}
/* ===================================
   Bulletin Page Components
   =================================== */

/* 会報タブ */
.c-bulletin-tabs {
  margin-bottom: 4rem;
}

.c-bulletin-tabs__nav {
  display: flex;
  gap: 0.4rem;
  margin-bottom: 3rem;
  border-bottom: 2px solid #e9ecef;
  overflow-x: auto;
  padding-bottom: 0;
}

.c-bulletin-tabs__item {
  background: none;
  border: none;
  padding: 1.2rem 2.4rem;
  font-size: var(--font-size-base);
  font-weight: 500;
  color: #666;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  border-bottom: 3px solid transparent;
  position: relative;
  top: 2px;
}

.c-bulletin-tabs__item:hover {
  color: var(--sub-color);
  background-color: rgba(22, 73, 123, 0.05);
}

.c-bulletin-tabs__item--active {
  color: var(--sub-color);
  border-bottom-color: var(--sub-color);
  background-color: rgba(22, 73, 123, 0.1);
}

.c-bulletin-tabs__content {
  display: none;
}

.c-bulletin-tabs__content--active {
  display: block;
}

/* 会報リスト */
.c-bulletin-list {
  display: grid;
  gap: 2.4rem;
}

.c-bulletin-item {
  background: var(--white);
  border-radius: var(--border-radius);
  padding: 2.4rem;
  box-shadow: var(--shadow-light);
  transition: var(--transition);
}

.c-bulletin-item:hover {
  box-shadow: var(--shadow-medium);
  transform: translateY(-2px);
}

.c-bulletin-item__header {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  margin-bottom: 1.6rem;
}

.c-bulletin-item__date {
  font-size: var(--font-size-sm);
  color: #666;
  font-weight: 500;
}

.c-bulletin-item__type {
  background: var(--accent-color);
  color: var(--white);
  padding: 0.4rem 1.2rem;
  border-radius: 2rem;
  font-size: var(--font-size-xs);
  font-weight: 600;
}

.c-bulletin-item__title {
  font-size: var(--font-size-xl);
  color: var(--main-color);
  margin-bottom: 1.2rem;
  font-weight: 600;
  line-height: 1.4;
}

.c-bulletin-item__excerpt {
  color: #666;
  margin-bottom: 2rem;
  line-height: 1.6;
}

.c-bulletin-item__actions {
  display: flex;
  gap: 1.2rem;
  flex-wrap: wrap;
}

/* 会報なしの状態 */
.c-no-bulletins {
  text-align: center;
  padding: 4rem 2rem;
  color: #666;
}

.c-no-bulletins p {
  font-size: var(--font-size-base);
  margin: 0;
}

/* レスポンシブ対応 */
@media (max-width: 76.8rem) {
  .c-bulletin-tabs__nav {
    gap: 0.2rem;
  }

  .c-bulletin-tabs__item {
    padding: 1rem 1.8rem;
    font-size: var(--font-size-sm);
  }

  .c-bulletin-item {
    padding: 2rem;
  }

  .c-bulletin-item__title {
    font-size: var(--font-size-lg);
  }

  .c-bulletin-item__actions {
    gap: 1rem;
  }
}

@media (max-width: 48rem) {
  .c-bulletin-tabs__nav {
    margin-bottom: 2rem;
  }

  .c-bulletin-tabs__item {
    padding: 0.8rem 1.4rem;
    font-size: var(--font-size-sm);
  }

  .c-bulletin-list {
    gap: 2rem;
  }

  .c-bulletin-item {
    padding: 1.6rem;
  }

  .c-bulletin-item__header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.8rem;
  }

  .c-bulletin-item__title {
    font-size: var(--font-size-base);
    margin-bottom: 1rem;
  }

  .c-bulletin-item__actions {
    flex-direction: column;
    gap: 0.8rem;
  }

  .c-bulletin-item__actions .c-button {
    width: 100%;
    justify-content: center;
  }

  .c-no-bulletins {
    padding: 4rem 1rem;
  }

  .c-no-bulletins i {
    font-size: 3rem;
    margin-bottom: 1.5rem;
  }

  .c-no-bulletins p {
    font-size: var(--font-size-base);
  }
}

.c-table th,
.c-table td {
  padding: 1.2rem 1.6rem;
  text-align: left;
  border-bottom: 1px solid #e9ecef;
}

.c-table th {
  background: var(--bg-light);
  font-weight: 600;
  color: var(--main-color);
  font-size: var(--font-size-sm);
}

.c-table td {
  font-size: var(--font-size-base);
}

.c-table tr:last-child th,
.c-table tr:last-child td {
  border-bottom: none;
}

/* 画像スタイル */
.c-article__content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--border-radius);
  margin: 2rem 0;
  box-shadow: var(--shadow-light);
}

/* 引用スタイル */
.c-article__content blockquote {
  background: var(--bg-light);
  border-left: 4px solid var(--accent-color);
  padding: 2rem;
  margin: 2.4rem 0;
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
  font-style: italic;
}

/* コードスタイル */
.c-article__content code {
  background: #f8f9fa;
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-family: "Courier New", monospace;
  font-size: 0.9em;
}

.c-article__content pre {
  background: #f8f9fa;
  padding: 1.6rem;
  border-radius: var(--border-radius);
  overflow-x: auto;
  margin: 2rem 0;
}

.c-article__content pre code {
  background: none;
  padding: 0;
}

/* レスポンシブ対応 */
@media (max-width: 76.8rem) {
  .c-article__header {
    padding: 3rem 3rem 1.5rem;
  }

  .c-article__title {
    font-size: var(--h2-size);
  }

  .c-article__content {
    padding: 2.4rem 3rem 3rem;
  }

  .c-article__content h2 {
    font-size: var(--h3-size);
    margin: 2.4rem 0 1.2rem;
  }

  .c-article__content h3 {
    font-size: var(--h4-size);
    margin: 2rem 0 1rem;
  }

  .c-article__nav {
    padding: 1.5rem 3rem 3rem;
  }

  .c-table th,
  .c-table td {
    padding: 1rem 1.2rem;
    font-size: var(--font-size-sm);
  }
}

@media (max-width: 48rem) {
  .c-article__header {
    padding: 2.4rem 2rem 1.2rem;
  }

  .c-article__title {
    font-size: var(--h3-size);
    margin-bottom: 1.6rem;
  }

  .c-article__meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .c-article__content {
    padding: 2rem;
  }

  .c-article__content h2 {
    font-size: var(--h4-size);
    margin: 2rem 0 1rem;
  }

  .c-article__content h3 {
    font-size: var(--h5-size);
    margin: 1.6rem 0 0.8rem;
  }

  .c-article__nav {
    padding: 1.2rem 2rem 2.4rem;
  }

  .c-button--secondary {
    width: 100%;
    justify-content: center;
    padding: 1.4rem 2rem;
  }

  .c-table {
    font-size: var(--font-size-sm);
  }

  .c-table th,
  .c-table td {
    padding: 0.8rem 1rem;
  }

  /* テーブルを横スクロール可能にする */
  .c-article__content .c-table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }
}

/* ===================================
   Password Protection Form
   =================================== */

.c-password-form {
  max-width: 60rem;
  margin: 0 auto;
  padding: 4rem 2rem;
  text-align: center;
}

.c-password-form .post-password-form {
  background: var(--white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-medium);
  padding: 4rem 3rem;
  margin: 2rem 0;
}

.c-password-form .post-password-form p {
  font-size: var(--font-size-base);
  line-height: 1.8;
  margin-bottom: 2rem;
  color: var(--text-color);
}

.c-password-form .post-password-form p:first-child {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--main-color);
  margin-bottom: 3rem;
}

.c-password-form .post-password-form label {
  display: block;
  font-weight: 700;
  color: var(--main-color);
  margin-bottom: 1rem;
  font-size: var(--font-size-base);
}

.c-password-form .post-password-form input[type="password"] {
  width: 100%;
  max-width: 30rem;
  padding: 1.2rem 1.6rem;
  border: 2px solid #e0e0e0;
  border-radius: var(--border-radius);
  font-size: var(--font-size-base);
  margin: 1rem 0 2rem 0;
  transition: var(--transition);
  background: var(--white);
}

.c-password-form .post-password-form input[type="password"]:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(252, 161, 0, 0.1);
}

.c-password-form .post-password-form input[type="submit"] {
  background: var(--accent-color);
  color: var(--white);
  border: none;
  padding: 1.2rem 3rem;
  border-radius: var(--border-radius);
  font-size: var(--font-size-base);
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  min-width: 12rem;
}

.c-password-form .post-password-form input[type="submit"]:hover {
  background: #e8910a;
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
}

/* パスワード保護フォームのアイコン装飾 */
.c-password-form::before {
  content: "\f023";
  font-family: "Font Awesome 5 Free";
  font-weight: 900;
  font-size: 4rem;
  color: var(--accent-color);
  display: block;
  margin-bottom: 2rem;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
  .c-password-form {
    padding: 2rem 1rem;
  }

  .c-password-form .post-password-form {
    padding: 3rem 2rem;
  }

  .c-password-form .post-password-form input[type="password"] {
    max-width: 100%;
  }
}