/* ===== DEMO BANNER ===== */
.demo-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  background: rgba(13, 27, 42, 0.96);
  border-top: 2px solid var(--gold);
  padding: 10px 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  backdrop-filter: blur(6px);
}

.demo-banner-logo {
  height: 28px;
  width: auto;
  display: block;
  flex-shrink: 0;
}

.demo-banner-text {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.75);
  letter-spacing: 0.05em;
  line-height: 1.5;
}

.demo-banner-text strong {
  color: var(--gold);
  font-weight: 700;
}

.demo-banner-close {
  margin-left: auto;
  background: none;
  border: 1px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.5);
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 3px;
  cursor: pointer;
  font-family: var(--font-sans);
  flex-shrink: 0;
  transition: var(--transition);
}

.demo-banner-close:hover {
  border-color: var(--gold);
  color: var(--gold);
}

/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* SVGがコンテナからはみ出して巨大化するのを防ぐ */
svg {
  overflow: hidden;
  vertical-align: middle;
}

:root {
  --navy: #0D1B2A;
  --navy-mid: #1A2E45;
  --navy-light: #253D5B;
  --gold: #C9A84C;
  --gold-light: #E8C96B;
  --gold-dark: #A8883A;
  --white: #FFFFFF;
  --off-white: #F8F6F1;
  --light-gray: #F0EDE8;
  --mid-gray: #9CA3B0;
  --text: #1A1A2E;
  --text-mid: #4A5568;
  --font-serif: 'Noto Serif JP', serif;
  --font-sans: 'Noto Sans JP', sans-serif;
  --transition: 0.25s ease;
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-hover: 0 8px 32px rgba(0,0,0,0.14);
  --radius: 4px;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--white);
  line-height: 1.8;
  font-size: 15px;
}

a { color: inherit; text-decoration: none; transition: var(--transition); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-pad { padding: 90px 0; }
.bg-light { background: var(--off-white); }
.bg-dark { background: var(--navy); }

/* ===== SECTION HEADER ===== */
.section-header { text-align: center; margin-bottom: 56px; }
.section-header.light .section-label,
.section-header.light .section-title { color: var(--white); }
.section-header.light .section-desc { color: var(--mid-gray); }

.section-label {
  font-family: var(--font-sans);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--gold);
  font-weight: 500;
  display: block;
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 600;
  color: var(--navy);
  line-height: 1.4;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 15px;
  color: var(--text-mid);
  max-width: 560px;
  margin: 0 auto;
}

.section-more { text-align: center; margin-top: 48px; }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius);
  font-weight: 500;
  font-size: 14px;
  letter-spacing: 0.05em;
  transition: var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn-lg { padding: 18px 40px; font-size: 16px; }

.btn-gold {
  background: var(--gold);
  color: var(--navy);
  border-color: var(--gold);
}
.btn-gold:hover { background: var(--gold-light); border-color: var(--gold-light); }

.btn-outline-navy {
  background: transparent;
  color: var(--navy);
  border-color: var(--navy);
}
.btn-outline-navy:hover { background: var(--navy); color: var(--white); }

.btn-outline-white {
  background: transparent;
  color: var(--white);
  border-color: var(--white);
}
.btn-outline-white:hover { background: var(--white); color: var(--navy); }

.btn-outline-gold {
  background: transparent;
  color: var(--gold);
  border-color: var(--gold);
}
.btn-outline-gold:hover { background: var(--gold); color: var(--navy); }

/* ===== HEADER ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: transparent;
  transition: background 0.35s ease, box-shadow 0.35s ease;
  padding: 0;
}

.site-header.scrolled {
  background: var(--navy);
  box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.header-logo a {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.logo-en {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--gold);
  font-weight: 500;
}

.logo-ja {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--white);
  letter-spacing: 0.08em;
}

.header-nav ul {
  display: flex;
  align-items: center;
  gap: 32px;
}

.header-nav a {
  font-size: 13px;
  color: rgba(255,255,255,0.85);
  letter-spacing: 0.04em;
  font-weight: 400;
  padding: 4px 0;
  border-bottom: 1px solid transparent;
}

.header-nav a:hover { color: var(--gold); border-bottom-color: var(--gold); }

.header-nav .nav-cta {
  background: var(--gold);
  color: var(--navy);
  padding: 10px 20px;
  border-radius: var(--radius);
  border-bottom: none;
  font-weight: 600;
}
.header-nav .nav-cta:hover { background: var(--gold-light); color: var(--navy); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: var(--transition);
}

.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ===== NEWS BAR ===== */
.news-bar {
  background: var(--navy-mid);
  padding: 12px 0;
  border-bottom: 1px solid rgba(201,168,76,0.2);
}

.news-bar-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  overflow: hidden;
}

.news-bar-label {
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--gold);
  font-weight: 600;
  white-space: nowrap;
  border: 1px solid var(--gold);
  padding: 2px 8px;
}

.news-bar-list {
  display: flex;
  gap: 32px;
  overflow: hidden;
  flex: 1;
}

.news-bar-list a {
  font-size: 12px;
  color: rgba(255,255,255,0.7);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.news-bar-list a:hover { color: var(--gold); }

.news-bar-more {
  font-size: 11px;
  color: var(--gold);
  white-space: nowrap;
  letter-spacing: 0.05em;
}
.news-bar-more:hover { color: var(--gold-light); }

/* ===== CTA SECTION ===== */
.cta-section {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  padding: 80px 0;
  border-top: 1px solid rgba(201,168,76,0.2);
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
}

.cta-sub {
  font-size: 12px;
  letter-spacing: 0.15em;
  color: var(--gold);
  margin-bottom: 12px;
}

.cta-inner h2 {
  font-family: var(--font-serif);
  font-size: clamp(22px, 2.5vw, 32px);
  color: var(--white);
  margin-bottom: 16px;
}

.cta-desc {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  line-height: 1.8;
}

.cta-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  flex-shrink: 0;
}

.cta-tel { text-align: center; }
.cta-tel p { font-size: 12px; color: rgba(255,255,255,0.6); }
.cta-tel-num {
  display: block;
  font-size: 28px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.05em;
  margin: 4px 0;
}
.cta-tel-num:hover { color: var(--gold); }
.cta-tel-hours { font-size: 12px; color: var(--mid-gray); }

/* ===== FOOTER ===== */
.site-footer {
  background: var(--navy);
  border-top: 1px solid rgba(201,168,76,0.15);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 2fr;
  gap: 64px;
  padding: 64px 24px 48px;
  max-width: 1160px;
  margin: 0 auto;
}

.footer-logo-en {
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--gold);
  margin-bottom: 4px;
}

.footer-logo-ja {
  font-family: var(--font-serif);
  font-size: 20px;
  color: var(--white);
  font-weight: 600;
  margin-bottom: 20px;
  letter-spacing: 0.08em;
}

.footer-address, .footer-hours {
  font-size: 13px;
  color: rgba(255,255,255,0.55);
  margin-bottom: 6px;
  line-height: 1.7;
}

.footer-tel a {
  font-size: 20px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.04em;
  margin: 8px 0;
  display: block;
}
.footer-tel a:hover { color: var(--gold); }

.footer-nav {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.footer-nav-head {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--gold);
  font-weight: 600;
  margin-bottom: 16px;
}

.footer-nav ul li { margin-bottom: 10px; }

.footer-nav ul li a {
  font-size: 13px;
  color: rgba(255,255,255,0.55);
}
.footer-nav ul li a:hover { color: var(--white); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 24px;
  text-align: center;
}

.footer-bottom p {
  font-size: 12px;
  color: rgba(255,255,255,0.3);
}

/* ===== PAGE HEADER (内部ページ用) ===== */
.page-header {
  background:
    linear-gradient(135deg, rgba(13,27,42,0.94) 0%, rgba(26,46,69,0.88) 100%),
    url('https://images.unsplash.com/photo-1589829545856-d10d557cf95f?w=1400&q=80') center/cover no-repeat;
  padding: 140px 0 72px;
  text-align: center;
  border-bottom: 1px solid rgba(201,168,76,0.2);
}

.page-header-label {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--gold);
  display: block;
  margin-bottom: 12px;
}

.page-header h1 {
  font-family: var(--font-serif);
  font-size: clamp(28px, 4vw, 44px);
  color: var(--white);
  font-weight: 600;
}

/* ===== BREADCRUMB ===== */
.breadcrumb {
  background: var(--off-white);
  padding: 12px 0;
  border-bottom: 1px solid var(--light-gray);
}

.breadcrumb ul {
  display: flex;
  gap: 8px;
  align-items: center;
}

.breadcrumb li { font-size: 12px; color: var(--text-mid); }
.breadcrumb li:not(:last-child)::after { content: "›"; margin-left: 8px; }
.breadcrumb a { color: var(--navy-mid); }
.breadcrumb a:hover { color: var(--gold-dark); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .header-nav ul { gap: 20px; }
}

@media (max-width: 900px) {
  .header-nav {
    display: none;
    position: fixed;
    inset: 76px 0 0 0;
    background: var(--navy);
    padding: 32px 24px;
    overflow-y: auto;
  }

  .header-nav.open { display: block; }

  .header-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
  }

  .header-nav ul li { width: 100%; border-bottom: 1px solid rgba(255,255,255,0.08); }

  .header-nav ul li a {
    display: block;
    padding: 16px 0;
    font-size: 16px;
    border: none;
  }

  .header-nav .nav-cta {
    margin-top: 16px;
    display: flex;
    width: 100%;
    border-radius: var(--radius);
    justify-content: center;
  }

  .hamburger { display: flex; }

  .footer-inner { grid-template-columns: 1fr; gap: 40px; }
  .footer-nav { grid-template-columns: repeat(2, 1fr); }

  .cta-inner { flex-direction: column; text-align: center; }

  .news-bar-list { display: none; }
}

@media (max-width: 600px) {
  .section-pad { padding: 64px 0; }
  .footer-nav { grid-template-columns: repeat(2, 1fr); }
  .btn-lg { padding: 16px 28px; font-size: 15px; }
}