:root {
    --bg: #0f172a;
    --panel: #111827;
    --panel-soft: #1f2937;
    --text: #e5e7eb;
    --muted: #94a3b8;
    --accent: #60a5fa;
    --border: #334155;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.65;
}

a {
    color: var(--accent);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

code,
pre {
    font-family: Consolas, "Courier New", monospace;
}

.site-header {
    text-align: center;
    padding: 40px 20px 20px;
}

.logo {
    max-width: 140px;
    height: auto;
    display: block;
    margin: 0 auto 16px;
}

.subtitle {
    color: var(--muted);
    margin-top: 8px;
}

.main-nav {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    padding: 16px 20px 24px;
}

.container {
    max-width: 980px;
    margin: 0 auto;
    padding: 0 20px 40px;
}

.card,
.policy {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 20px;
}

.site-footer {
    text-align: center;
    color: var(--muted);
    padding: 24px 20px 40px;
}

.lang-switch {
    margin-bottom: 24px;
    text-align: center;
}

.policy h2,
.policy h3 {
    margin-top: 0;
}

.policy ul {
    padding-left: 20px;
}

.meta {
    color: var(--muted);
    margin-bottom: 16px;
}

.notice {
    border-left: 4px solid #f59e0b;
    background: rgba(245, 158, 11, 0.08);
    padding: 12px 16px;
    border-radius: 8px;
}