* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
    background: #f3f4f6;
    color: #222;
    line-height: 1.6;
}

.container {
    width: min(900px, calc(100% - 32px));
    margin: 0 auto;
}

.site-header {
    padding: 32px 0 16px;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.logo {
    font-size: 20px;
    font-weight: 700;
}

.language-switch a {
    display: inline-block;
    padding: 6px 10px;
    margin-left: 4px;
    border-radius: 6px;
    color: #444;
    text-decoration: none;
    font-size: 14px;
}

.language-switch a.active,
.language-switch a:hover {
    background: #222;
    color: #fff;
}

.site-main {
    padding: 16px 0 32px;
}

.content-box {
    background: #fff;
    padding: 40px;
    border-radius: 14px;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
}

h1 {
    margin-top: 0;
    font-size: 30px;
    line-height: 1.25;
}

a {
    color: #2f5d7c;
}

.button-wrap {
    margin-top: 28px;
}

.button {
    display: inline-block;
    padding: 12px 20px;
    border-radius: 8px;
    background: #2f5d7c;
    color: #fff;
    text-decoration: none;
    font-weight: 600;
}

.button:hover {
    background: #244960;
}

.site-footer {
    padding: 8px 0 32px;
    font-size: 14px;
    color: #666;
}

.footer-inner {
    text-align: center;
}

.site-footer a {
    color: #555;
    text-decoration: none;
}

.site-footer a:hover {
    text-decoration: underline;
}

.site-footer span {
    margin: 0 8px;
}

@media (max-width: 600px) {
    .header-inner {
        align-items: flex-start;
        flex-direction: column;
    }

    .content-box {
        padding: 28px 22px;
    }

    h1 {
        font-size: 24px;
    }
}