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

:root {
  --blue: #4BA3C7;
  --blue-dark: #3A8AAE;
  --blue-light: #EBF5FA;
  --blue-mid: #D0EAF5;
  --text: #333;
  --text-sub: #666;
  --border: #e0e0e0;
  --white: #fff;
  --max-w: 1100px;
}

body { font-family: 'Hiragino Sans', 'Meiryo', sans-serif; color: var(--text); background: #fff; }
a { text-decoration: none; color: inherit; }
img { display: block; max-width: 100%; }

/* ====== HEADER ====== */
header {
  position: sticky; top: 0; z-index: 100;
  background: #fff; border-bottom: 1px solid var(--border);
  height: 64px; display: flex; align-items: center;
}
.header-inner {
  max-width: var(--max-w); margin: 0 auto; padding: 0 24px;
  width: 100%; display: flex; align-items: center; gap: 32px;
}
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-icon {
  width: 40px; height: 40px; background: var(--blue-light);
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
}
.logo-icon svg { width: 22px; height: 22px; }
.logo-text { line-height: 1.2; }
.logo-text .ja { font-size: 15px; font-weight: 700; color: var(--text); }
.logo-text .en { font-size: 9px; letter-spacing: .08em; color: var(--blue); }

nav { display: flex; gap: 24px; margin-left: 16px; }
nav a { font-size: 13px; color: var(--text); white-space: nowrap; padding: 4px 0; border-bottom: 2px solid transparent; transition: color .2s, border-color .2s; }
nav a:hover, nav a.active { color: var(--blue); border-bottom-color: var(--blue); }

.header-right { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.header-phone { display: flex; align-items: center; gap: 6px; font-size: 20px; font-weight: 700; color: var(--text); white-space: nowrap; }
.header-phone svg { color: var(--blue); }
.btn-reserve {
  display: flex; flex-direction: column; align-items: center;
  background: var(--blue); color: #fff;
  padding: 8px 16px; border-radius: 4px;
  font-size: 13px; font-weight: 700; line-height: 1.2; text-align: center;
}
.btn-reserve .sub { font-size: 10px; font-weight: 400; }
.btn-reserve:hover { background: var(--blue-dark); }

/* ====== PAGE HERO ====== */
.page-hero {
  background: linear-gradient(135deg, var(--blue-light) 0%, #f0f9fd 100%);
  padding: 48px 24px;
  border-bottom: 1px solid var(--blue-mid);
}
.page-hero-inner { max-width: var(--max-w); margin: 0 auto; }
.breadcrumb { font-size: 12px; color: var(--text-sub); margin-bottom: 12px; }
.breadcrumb a { color: var(--blue); }
.breadcrumb span { margin: 0 6px; }
.page-hero h1 { font-size: 32px; font-weight: 900; color: var(--text); }

/* ====== SECTION COMMONS ====== */
.section-label {
  text-align: center; font-size: 13px; color: var(--blue);
  font-weight: 700; letter-spacing: .1em; margin-bottom: 12px;
}
.section-title {
  text-align: center; font-size: 28px; font-weight: 900;
  margin-bottom: 40px; color: var(--text);
}
.section-title::after {
  content: ''; display: block; width: 36px; height: 3px;
  background: var(--blue); margin: 16px auto 0;
}

/* ====== BUTTONS ====== */
.btn-blue {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--blue); color: #fff;
  padding: 14px 28px; border-radius: 4px;
  font-size: 15px; font-weight: 700;
}
.btn-blue:hover { background: var(--blue-dark); }
.btn-outline {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid var(--blue); color: var(--blue);
  padding: 12px 32px; border-radius: 999px;
  font-size: 14px; font-weight: 700;
}
.btn-outline:hover { background: var(--blue); color: #fff; }
.btn-ghost {
  display: inline-flex; align-items: center; gap: 6px;
  border: 1px solid var(--border); color: var(--text);
  padding: 8px 20px; border-radius: 4px; font-size: 13px;
}
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); }

/* ====== FOOTER ====== */
footer { background: #f7f9fb; border-top: 1px solid var(--border); }
.footer-nav {
  max-width: var(--max-w); margin: 0 auto; padding: 28px 24px;
  display: flex; flex-wrap: wrap; justify-content: center;
}
.footer-nav a { font-size: 13px; color: var(--text-sub); padding: 4px 16px; }
.footer-nav a + a { border-left: 1px solid var(--border); }
.footer-nav a:hover { color: var(--blue); }
.footer-bottom {
  border-top: 1px solid var(--border);
  max-width: var(--max-w); margin: 0 auto; padding: 20px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.footer-address { font-size: 12px; color: var(--text-sub); line-height: 1.8; }
.back-to-top {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--blue); color: #fff; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; cursor: pointer;
}

/* ====== RESPONSIVE ====== */
@media (max-width: 900px) { nav { display: none; } }
@media (max-width: 600px) { .header-phone { display: none; } }