/* ===== HEADER ===== */
.site-header {
  background: #fff;
  border-bottom: 3px solid var(--red);
  padding: 10px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}
.header-logo { display: flex; align-items: center; gap: 12px; }
.logo-mark {
  width: 56px; height: 56px;
  border-radius: 10px;
  overflow: hidden;
  flex-shrink: 0;
}
.logo-mark img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}
.logo-texts .sub { font-size: 10px; color: var(--text-mid); display: block; }
.logo-texts .main { font-size: 23px; font-weight: 900; color: var(--red); display: block; }
.header-contact { text-align: right; }
.header-contact .tel-label { font-size: 11px; color: var(--text-mid); display: block; }
.header-contact .tel-num { font-size: 26px; font-weight: 900; color: var(--text-dark); display: block; letter-spacing: 0.03em; }
.header-contact .tel-hours { font-size: 10px; color: var(--text-mid); }

@media (max-width: 680px) {
  .site-header { flex-direction: column; gap: 8px; text-align: center; }
  .header-contact { text-align: center; }
}