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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

.page-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

main {
    flex-grow: 1;
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

header {
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    padding: 1rem 0;
}

.logo-container {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.logo {
    width: 120px;
    height: auto;
}

footer {
    background-color: #f8f8f8;
    padding: 1rem 0;
    text-align: center;
    font-size: 0.875rem;
    color: #666;
}

h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

h2 {
    font-size: 1.5rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

p {
    margin-bottom: 1rem;
}

.hero {
    margin-bottom: 2rem;
}

.version {
    display: inline-block;
    background-color: #333;
    color: #fff;
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
    border-radius: 4px;
}

.content {
    background-color: #fff;
}

.lang-button {
    margin-top: 10px;
    background-color: #007bff;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    background: none;
}

.lang-icon {
    width: 24px;
    height: 24px;
}