:root {
  --color-primary: #f15c8f;
  --color-primary-dark: #d44878;
  --color-primary-light: #fde8f0;
  --color-okinawa: #f15c8f;
  --color-itoman: #5cb85c;
  --color-yonabaru: #f0a030;
  --color-uruma: #5b9bd5;
  --color-text: #333;
  --color-text-light: #666;
  --color-bg: #fff;
  --color-bg-gray: #f7f7f7;
  --font-main: 'Noto Sans JP', 'Hiragino Sans', 'Yu Gothic', sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
}

/* ========== HEADER ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,.1);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.site-logo img {
  height: 52px;
  display: block;
}

.site-nav {
  display: flex;
  gap: 0;
  list-style: none;
}

.site-nav a {
  display: block;
  padding: 8px 16px;
  text-decoration: none;
  color: var(--color-text);
  font-size: .9rem;
  font-weight: 500;
  border-radius: 4px;
  transition: color .2s, background .2s;
}

.site-nav a:hover {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.header-btn {
  background: var(--color-primary);
  color: #fff !important;
  border-radius: 24px !important;
  padding: 8px 20px !important;
}

.header-btn:hover {
  background: var(--color-primary-dark) !important;
  color: #fff !important;
}

/* ========== HERO ========== */
.hero {
  padding: 80px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
  min-height: 480px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 両脇ぼかし層 */
.hero-bg-blur {
  position: absolute;
  inset: -30px;
  width: calc(100% + 60px);
  height: calc(100% + 60px);
  object-fit: cover;
  filter: blur(24px);
  transform: scale(1.08);
  z-index: 0;
}

/* 中央シャープ層（自然なアスペクト比） */
.hero-bg-main {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  height: 100%;
  width: auto;
  z-index: 1;
  object-fit: cover;
}

.hero-inner {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  z-index: 3;
  background: rgba(255,255,255,.82);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border-radius: 16px;
  padding: 48px 56px;
}

.hero-label {
  display: inline-block;
  background: var(--color-primary);
  color: #fff;
  font-size: .8rem;
  letter-spacing: .12em;
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 900;
  line-height: 1.2;
  color: #222;
  margin-bottom: 12px;
}

.hero h1 span {
  color: var(--color-primary);
}

.hero-en {
  font-size: 1rem;
  color: var(--color-text-light);
  letter-spacing: .15em;
  margin-bottom: 24px;
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--color-text-light);
  margin-bottom: 40px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 32px;
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
  transition: transform .15s, box-shadow .15s;
  cursor: pointer;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,.15);
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}

.btn-outline {
  background: #fff;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

/* ========== NEWS TICKER ========== */
.news-ticker {
  background: var(--color-primary);
  color: #fff;
  padding: 12px 0;
  overflow: hidden;
}

.news-ticker-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  gap: 24px;
  align-items: center;
}

.ticker-label {
  background: #fff;
  color: var(--color-primary);
  font-size: .75rem;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: 3px;
  white-space: nowrap;
  flex-shrink: 0;
}

.ticker-list {
  display: flex;
  gap: 40px;
  animation: ticker 30s linear infinite;
  white-space: nowrap;
}

.ticker-list a {
  color: #fff;
  text-decoration: none;
  font-size: .9rem;
}

.ticker-list a:hover {
  text-decoration: underline;
}

@keyframes ticker {
  0%   { transform: translateX(100%); }
  100% { transform: translateX(-200%); }
}

/* ========== SECTION COMMON ========== */
.section {
  padding: 72px 24px;
}

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

.section-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-label {
  display: inline-block;
  color: var(--color-primary);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .15em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 900;
  color: #222;
}

.section-title span {
  color: var(--color-primary);
}

/* ========== LINES SECTION ========== */
.lines-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.line-card {
  background: #fff;
  border-radius: 12px;
  padding: 28px 24px;
  box-shadow: 0 2px 12px rgba(0,0,0,.07);
  border-top: 5px solid var(--line-color);
  transition: transform .2s, box-shadow .2s;
}

.line-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,.12);
}

.line-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--line-color);
  color: #fff;
  font-size: 1.1rem;
  font-weight: 900;
  margin-bottom: 14px;
}

.line-name-ja {
  font-size: 1.3rem;
  font-weight: 900;
  color: #222;
  margin-bottom: 2px;
}

.line-name-en {
  font-size: .8rem;
  color: var(--color-text-light);
  letter-spacing: .1em;
  margin-bottom: 12px;
}

.line-stations {
  font-size: .9rem;
  color: var(--color-text-light);
  display: flex;
  align-items: center;
  gap: 6px;
}

.line-stations::before {
  content: '';
  display: inline-block;
  width: 32px;
  height: 3px;
  background: var(--line-color);
  border-radius: 2px;
  flex-shrink: 0;
}

/* ========== KARIYUSHI SECTION ========== */
.kariyushi-section {
  background: linear-gradient(135deg, #0f6b9e 0%, #0a4e80 60%, #0f6b9e 100%);
  color: #fff;
}

.kariyushi-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.kariyushi-left {
  display: flex;
  gap: 24px;
  align-items: flex-start;
}

.kariyushi-logo-wrap {
  flex-shrink: 0;
}

.kariyushi-logo-wrap img {
  width: 100px;
  height: 100px;
  object-fit: contain;
  display: block;
  filter: drop-shadow(0 4px 12px rgba(241,92,143,.4));
}

.kariyushi-train-wrap img {
  width: 100%;
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0,0,0,.35);
  display: block;
}

.kariyushi-body .section-label {
  color: var(--color-primary);
}

.kariyushi-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 900;
  margin: 8px 0 20px;
  color: #fff;
}

.kariyushi-route {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.kariyushi-station {
  font-size: 1.4rem;
  font-weight: 900;
  color: #fff;
  background: #7a2a58;
  border: 1px solid #a83878;
  padding: 6px 20px;
  border-radius: 4px;
}

.kariyushi-arrow {
  font-size: 1.4rem;
  color: var(--color-primary);
}

.kariyushi-route-line {
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.kariyushi-desc {
  font-size: .95rem;
  color: #bbb;
  line-height: 1.85;
  margin-bottom: 32px;
  max-width: 520px;
}

.kariyushi-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-outline-white {
  background: transparent;
  color: #fff !important;
  border: 2px solid rgba(255,255,255,.5) !important;
}

.btn-outline-white:hover {
  background: rgba(255,255,255,.1) !important;
  border-color: #fff !important;
}

@media (max-width: 900px) {
  .kariyushi-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .kariyushi-train-wrap {
    order: -1;
  }
}

@media (max-width: 480px) {
  .kariyushi-left {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .kariyushi-logo-wrap img {
    width: 100px;
    height: 100px;
  }

  .kariyushi-route {
    justify-content: center;
  }

  .kariyushi-actions {
    justify-content: center;
  }
}

/* ========== ROUTE MAP SECTION ========== */
.route-map-wrap {
  text-align: center;
}

.route-map-btn {
  background: none;
  border: none;
  padding: 0;
  cursor: zoom-in;
  display: block;
  width: 100%;
  position: relative;
}

.route-map-btn::after {
  content: '空想路線図です';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(-20deg);
  font-size: clamp(2rem, 5vw, 3.6rem);
  font-weight: 900;
  color: rgba(0,0,0,.12);
  letter-spacing: .2em;
  pointer-events: none;
  white-space: nowrap;
  font-family: var(--font-main);
}

.route-map-btn:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 4px;
  border-radius: 16px;
}

.route-map-wrap img {
  max-width: 100%;
  border-radius: 16px;
  box-shadow: 0 4px 24px rgba(0,0,0,.1);
  display: block;
}

/* ========== LIGHTBOX ========== */
.lightbox {
  border: none;
  padding: 0;
  background: transparent;
  max-width: 95vw;
  max-height: 95vh;
  overflow: hidden;
  position: fixed;
  inset: 0;
  margin: auto;
}

.lightbox::backdrop {
  background: rgba(0,0,0,.88);
}

.lightbox-img-wrap {
  max-width: 95vw;
  max-height: 95vh;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-img-wrap img {
  max-width: 95vw;
  max-height: 95vh;
  object-fit: contain;
  transform-origin: center center;
  user-select: none;
  -webkit-user-drag: none;
  border-radius: 8px;
}

.lightbox-close {
  position: fixed;
  top: 16px;
  right: 20px;
  background: rgba(0,0,0,.55);
  border: none;
  color: #fff;
  font-size: 1.6rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  transition: background .15s;
}

.lightbox-close:hover {
  background: rgba(0,0,0,.75);
}

.lightbox-hint {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0,0,0,.6);
  color: #fff;
  font-size: .8rem;
  padding: 4px 14px;
  border-radius: 20px;
  pointer-events: none;
  white-space: nowrap;
}

/* ========== NEWS SECTION ========== */
.news-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid #e8e8e8;
  border-radius: 12px;
  overflow: hidden;
  background: #fff;
}

.news-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 20px 28px;
  text-decoration: none;
  color: inherit;
  border-bottom: 1px solid #f0f0f0;
  transition: background .15s;
}

.news-item:last-child {
  border-bottom: none;
}

.news-item:hover {
  background: var(--color-primary-light);
}

.news-meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: flex-start;
  flex-shrink: 0;
  min-width: 130px;
}

.news-date {
  font-size: .85rem;
  color: var(--color-text-light);
}

.news-category {
  display: inline-block;
  font-size: .72rem;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: 3px;
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.news-category.important {
  background: #fff0f0;
  color: #b30000;
}

.news-title {
  font-size: .95rem;
  line-height: 1.7;
  padding-top: 2px;
}

.news-more {
  text-align: center;
  margin-top: 24px;
}

/* ========== SERVICE SECTION ========== */
.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.service-card {
  background: #fff;
  border-radius: 12px;
  padding: 32px 24px;
  text-align: center;
  box-shadow: 0 2px 12px rgba(0,0,0,.06);
  transition: transform .2s, box-shadow .2s;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,.12);
}

.service-icon {
  font-size: 2.4rem;
  margin-bottom: 16px;
}

.service-name {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: #222;
}

.service-desc {
  font-size: .85rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

.service-card-link {
  text-decoration: none;
  color: inherit;
  display: block;
  position: relative;
}

.service-card-link::after {
  content: '↗';
  position: absolute;
  top: 16px;
  right: 16px;
  font-size: .85rem;
  color: #a02860;
}

/* ========== YUICA SECTION ========== */
.yuica-section {
  background: linear-gradient(135deg, #fff5f8 0%, #fde8f0 100%);
}

.yuica-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.yuica-logo {
  height: 52px;
  width: auto;
  display: block;
  margin-bottom: 20px;
}

.yuica-catch {
  font-size: clamp(1.2rem, 2.5vw, 1.6rem);
  font-weight: 900;
  color: #b83368;
  line-height: 1.4;
  margin-bottom: 16px;
}

.yuica-desc {
  font-size: .95rem;
  color: var(--color-text-light);
  line-height: 1.85;
  margin-bottom: 32px;
}

.yuica-info {
  font-size: .88rem;
  color: #b83368;
  font-weight: 700;
  margin-bottom: 24px;
  padding-left: 12px;
  border-left: 3px solid var(--color-primary);
}

.yuica-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.yuica-img-wrap img {
  width: 100%;
  display: block;
  border-radius: 12px;
}

.yuica-features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 48px;
  padding-top: 40px;
  border-top: 1px solid rgba(241,92,143,.2);
}

.yuica-feature {
  background: #fff;
  border-radius: 12px;
  padding: 24px 20px;
  text-align: center;
  border-top: 3px solid var(--color-primary);
}

.yuica-feature-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.yuica-feature-title {
  font-size: .9rem;
  font-weight: 700;
  color: #222;
  margin-bottom: 8px;
  line-height: 1.4;
}

.yuica-feature-desc {
  font-size: .82rem;
  color: var(--color-text-light);
  line-height: 1.6;
}

@media (max-width: 768px) {
  .yuica-features {
    grid-template-columns: repeat(2, 1fr);
  }
}

.yuica-naming {
  margin-top: 20px;
  padding: 16px 20px;
  background: #fff0f5;
  border-radius: 12px;
  border: 1px solid var(--color-primary);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.yuica-naming-label {
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .15em;
  color: var(--color-primary);
  text-transform: uppercase;
}

.yuica-naming-title {
  font-size: .9rem;
  font-weight: 700;
  color: #222;
}

.yuica-naming-text {
  font-size: .82rem;
  color: var(--color-text-light);
  line-height: 1.75;
}

.yuica-naming-tagline {
  font-size: .85rem;
  font-weight: 700;
  color: #b83368;
}

.yuica-naming-tagline em {
  font-style: normal;
}

@media (max-width: 600px) {
  .yuica-naming {
    padding: 24px 20px;
  }
}

@media (max-width: 768px) {
  .yuica-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .yuica-img-wrap {
    order: 1;
  }
}

/* ========== FOOTER ========== */
.site-footer {
  background: #1a1a2e;
  color: #ccc;
  padding: 56px 24px 32px;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand img {
  height: 44px;
  filter: brightness(0) invert(1);
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: .85rem;
  line-height: 1.8;
  color: #aaa;
}

.footer-col h4 {
  font-size: .85rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
  letter-spacing: .08em;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-col a {
  color: #999;
  text-decoration: none;
  font-size: .85rem;
  transition: color .15s;
}

.footer-col a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  border-top: 1px solid #333;
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p {
  font-size: .8rem;
  color: #666;
}

.footer-legal {
  display: flex;
  gap: 20px;
}

.footer-legal a {
  color: #666;
  text-decoration: none;
  font-size: .8rem;
}

.footer-legal a:hover {
  color: #aaa;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
  .site-nav {
    display: none;
  }

  .hero {
    padding: 40px 16px;
  }

  .hero-inner {
    padding: 32px 24px;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .news-item {
    flex-direction: column;
    gap: 8px;
  }

  .news-meta {
    flex-direction: row;
    align-items: center;
  }
}

@media (max-width: 480px) {
  .footer-top {
    grid-template-columns: 1fr;
  }
}