:root {
    --primary: #0b63e5;
    --primary-hover: #0757ca;
    --navy: #082d68;
    --text: #0d1b2e;
    --muted: #64748b;
    --border: #dfe6ef;
    --surface: #f7f9fc;
}

* { 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", "Helvetica Neue", Arial, sans-serif;
    line-height: 1.78;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); }
a:hover { color: var(--primary-hover); }

.legal-nav {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 64px;
    padding: 0 max(20px, calc((100vw - 1120px) / 2));
    border-bottom: 1px solid rgba(223, 230, 239, .92);
    background: rgba(255, 255, 255, .95);
    backdrop-filter: blur(16px);
}

.legal-nav a { text-decoration: none; }
.legal-nav .brand {
    color: var(--text);
    font-size: 16px;
    font-weight: 760;
    letter-spacing: -.02em;
}
.legal-nav .back { color: var(--primary); font-size: 14px; font-weight: 650; }

.legal-wrap {
    width: min(900px, calc(100% - 40px));
    margin: 52px auto;
    padding: 58px 64px 64px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: #fff;
    box-shadow: 0 20px 52px rgba(20, 45, 80, .07);
}

.legal-wrap h1 {
    margin: 0 0 8px;
    font-size: 38px;
    line-height: 1.2;
    letter-spacing: -.045em;
}

.updated {
    margin: 0 0 36px;
    padding-bottom: 22px;
    border-bottom: 1px solid var(--border);
    color: var(--muted);
    font-size: 13px;
}

.legal-wrap h2 {
    margin: 38px 0 12px;
    color: var(--text);
    font-size: 20px;
    line-height: 1.45;
    letter-spacing: -.015em;
}

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

.legal-wrap p { margin: 12px 0; }
.legal-wrap ul,
.legal-wrap ol { padding-left: 1.35em; }
.legal-wrap li + li { margin-top: 6px; }

.notice {
    margin: 28px 0;
    padding: 18px 20px;
    border-left: 3px solid var(--primary);
    background: #eef5ff;
    color: #173a70;
    font-size: 14px;
    line-height: 1.75;
}

.legal-table {
    width: 100%;
    margin: 20px 0;
    border-collapse: collapse;
    font-size: 14px;
}

.legal-table th,
.legal-table td {
    padding: 13px 14px;
    border: 1px solid var(--border);
    text-align: left;
    vertical-align: top;
}

.legal-table th {
    background: var(--surface);
    color: var(--text);
    font-weight: 700;
}

.legal-table td { color: #405066; }

.legal-footer {
    padding: 0 20px 42px;
    color: var(--muted);
    text-align: center;
    font-size: 12px;
    line-height: 1.8;
}

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

@media (max-width: 640px) {
    .legal-nav {
        min-height: 60px;
        padding: 0 16px;
    }
    .legal-nav .brand { font-size: 14px; }
    .legal-nav .back { font-size: 13px; }
    .legal-wrap {
        width: 100%;
        margin: 0;
        padding: 34px 20px 48px;
        border: 0;
        border-radius: 0;
        box-shadow: none;
    }
    .legal-wrap h1 { font-size: 30px; }
    .updated { margin-bottom: 28px; }
    .legal-wrap h2 { margin-top: 30px; font-size: 19px; }
    .legal-wrap p,
    .legal-wrap li { font-size: 14px; }
    .notice { margin: 22px 0; padding: 15px 16px; }
    .legal-table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    .legal-table th,
    .legal-table td {
        min-width: 180px;
        padding: 11px 12px;
        font-size: 13px;
    }
}