body {
    margin: 0;
    font-family: 'Open Sans', sans-serif;
    color: #333;
    background-color: #fff;
    line-height: 1.6;
}

.container {
    width: 90%;
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
}

header {
    background: #fff;
    border-bottom: 1px solid #ccc;
    padding: 20px 0;
    text-align: center;
}

header h1 {
    margin: 0;
    font-size: 2em;
}

nav ul {
    list-style: none;
    padding: 0;
    margin-top: 10px;
    display: flex;
    justify-content: center;
    gap: 20px;
}

nav a {
    text-decoration: none;
    color: #000;
    font-weight: bold;
    padding: 0 10px;
}

nav a:hover {
    text-decoration: underline;
    color: #3367d6;
}

main h2 {
    font-size: 1.8em;
    margin-top: 40px;
}

footer {
    text-align: center;
    padding: 20px 0;
    border-top: 1px solid #ccc;
    font-size: 0.9em;
    color: #777;
}

.epigraph {
    text-align: center;
    font-style: italic;
    color: #666;
    margin: 60px 0;
}

.epigraph .quote {
    font-size: 1.5em;
}

.epigraph .author {
    margin-top: 10px;
    font-size: 1.1em;
}

header.hero {
    background: url('rose-header.jpg') no-repeat center center/cover;
    height: 300px;
    color: #000;
    position: relative;
}

.header-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
}

.logo-title {
    display: flex;
    align-items: center;
}

.logo {
    height: 40px;
    margin-right: 10px;
}

.site-title {
    font-size: 1.4em;
    font-weight: bold;
    color: black;
}

nav {
    background-color: rgba(255, 255, 255, 0.9);  /* 白背景に少し透過感 */
    padding: 10px 20px;
    border-radius: 8px;
    display: inline-block;
}
.language-switch {
  text-align: right;
  margin-top: 1em;
  font-size: 0.9em;
}
.language-switch a {
  color: #3367d6;
  text-decoration: none;
}
.language-switch a:hover {
  text-decoration: underline;
}
.back-home {
  margin-top: 2em;
  font-size: 0.9em;
  text-align: left;
}

.back-home a {
  color: #3367d6;
  text-decoration: none;
}

.back-home a:hover {
  text-decoration: underline;
}
.under-construction {
  margin-top: 2rem;
  font-size: 0.95em;
  color: #444;
}

.under-construction a {
  color: #3367d6;
  text-decoration: none;
}

.under-construction a:hover {
  text-decoration: underline;
}