:root {
    --primary: #2563eb;
    --text: #172033;
    --muted: #64748b;
    --border: #e2e8f0;
    --surface: #f8fafc;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    color: var(--text);
    background: var(--surface);
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Microsoft YaHei", sans-serif;
    line-height: 1.75;
}

.legal-nav {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 56px;
    padding: 0 24px;
    border-bottom: 1px solid rgba(226, 232, 240, .9);
    background: rgba(255, 255, 255, .94);
    backdrop-filter: blur(16px);
}

.legal-nav a {
    color: inherit;
    text-decoration: none;
}

.legal-nav .brand { font-weight: 700; }
.legal-nav .back { color: var(--primary); font-size: 14px; }

.legal-wrap {
    width: min(860px, calc(100% - 32px));
    margin: 40px auto;
    padding: 48px 56px;
    border: 1px solid var(--border);
    border-radius: 20px;
    background: #fff;
    box-shadow: 0 18px 50px rgba(15, 23, 42, .06);
}

.legal-wrap h1 {
    margin: 0 0 8px;
    font-size: 34px;
    line-height: 1.25;
    letter-spacing: -.04em;
}

.updated { margin: 0 0 34px; color: var(--muted); font-size: 14px; }

.legal-wrap h2 {
    margin: 34px 0 10px;
    font-size: 20px;
    line-height: 1.4;
}

.legal-wrap p,
.legal-wrap li { color: #334155; font-size: 15px; }

.legal-wrap ul,
.legal-wrap ol { padding-left: 1.3em; }

.notice {
    margin: 24px 0;
    padding: 16px 18px;
    border-left: 4px solid var(--primary);
    border-radius: 8px;
    background: #eff6ff;
    color: #1e3a8a;
}

.legal-table {
    width: 100%;
    margin: 18px 0;
    border-collapse: collapse;
    font-size: 14px;
}

.legal-table th,
.legal-table td {
    padding: 12px;
    border: 1px solid var(--border);
    text-align: left;
    vertical-align: top;
}

.legal-table th { background: var(--surface); }

.legal-footer {
    padding: 0 20px 36px;
    color: var(--muted);
    text-align: center;
    font-size: 13px;
}

.legal-footer a { color: var(--primary); text-decoration: none; }

@media (max-width: 640px) {
    .legal-nav { padding: 0 16px; }
    .legal-wrap {
        width: 100%;
        margin: 0;
        padding: 34px 20px 44px;
        border: 0;
        border-radius: 0;
        box-shadow: none;
    }
    .legal-wrap h1 { font-size: 28px; }
    .legal-wrap h2 { margin-top: 28px; font-size: 19px; }
    .legal-wrap p,
    .legal-wrap li { font-size: 14px; }
    .legal-table { display: block; overflow-x: auto; }
}