:root {
    --primary: #3390ec;
    --text: #222;
    --text-light: #555;
    --hint: #888;
    --bg: #fff;
    --bg-alt: #f5f7fa;
    --border: #e0e0e0;
    --warning-bg: #fff3cd;
    --warning-border: #ffc107;
    --warning-text: #856404;
    --danger: #e74c3c;
    --radius: 8px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
}
.page-wrap {
    max-width: 720px;
    margin: 0 auto;
    padding: 20px 16px 60px;
}
.back-link {
    display: inline-block;
    padding: 8px 0 20px;
    color: var(--primary);
    text-decoration: none;
    font-size: 14px;
}
h1 {
    font-size: 24px;
    margin-bottom: 4px;
}
.update-date {
    font-size: 13px;
    color: var(--hint);
    margin-bottom: 24px;
}
h2 {
    font-size: 17px;
    margin-top: 24px;
    margin-bottom: 8px;
    padding-bottom: 6px;
    border-bottom: 2px solid var(--primary);
    display: inline-block;
}
h3 {
    font-size: 15px;
    margin-top: 16px;
    margin-bottom: 6px;
}
p, li {
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 8px;
}
ul { padding-left: 20px; margin-bottom: 12px; }
li { margin-bottom: 4px; }
.section {
    margin-bottom: 20px;
}
.highlight-box {
    background: var(--warning-bg);
    border: 1px solid var(--warning-border);
    border-left: 4px solid var(--danger);
    border-radius: var(--radius);
    padding: 14px 16px;
    margin: 16px 0;
}
.highlight-box p { margin-bottom: 4px; font-size: 14px; }
.highlight-box strong { color: var(--warning-text); }
.info-box {
    background: var(--bg-alt);
    border-radius: var(--radius);
    padding: 14px 16px;
    margin: 12px 0;
}
.contact-list { list-style: none; padding: 0; }
.contact-list li {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}
.contact-list li:last-child { border-bottom: none; }
.contact-list .label { color: var(--hint); }
.contact-list .value { color: var(--text); font-weight: 500; }
.contact-list .value a { color: var(--primary); text-decoration: none; }
.footer-links {
    margin-top: 32px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}
.footer-links a {
    color: var(--hint);
    font-size: 13px;
    text-decoration: none;
}
.footer-links a:hover { color: var(--primary); }