* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.7;
    color: #333;
    background: #f5f5f5;
}
.container { max-width: 900px; margin: 0 auto; padding: 20px; }
header { background: #ff6b35; color: white; padding: 20px 0; margin-bottom: 20px; }
header h1 { text-align: center; font-size: 1.8em; }
header a { color: white; text-decoration: none; }
.term-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 10px; }
.term-list a {
    background: white;
    padding: 14px;
    border-radius: 6px;
    text-decoration: none;
    color: #ff6b35;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    transition: all 0.2s;
    font-size: 1em;
}
.term-list a:hover { background: #ff6b35; color: white; transform: translateY(-2px); }
.term-detail { background: white; padding: 30px; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,0.1); }
.term-detail h1 { color: #ff6b35; border-bottom: 3px solid #ff6b35; padding-bottom: 10px; margin-bottom: 20px; font-size: 2em; }
.english-equiv { color: #666; font-size: 0.9em; font-style: italic; margin-bottom: 15px; }
.description { font-size: 1.05em; line-height: 1.9; margin-bottom: 30px; white-space: pre-line; }
.description a { color: #ff6b35; text-decoration: underline; }
.related { background: #fff3e0; padding: 20px; border-radius: 6px; }
.related h2 { font-size: 1.1em; margin-bottom: 15px; color: #ff6b35; }
.related-list { display: flex; flex-wrap: wrap; gap: 8px; }
.related-list a { background: #ff6b35; color: white; padding: 8px 14px; border-radius: 20px; text-decoration: none; font-size: 0.95em; }
.related-list a:hover { opacity: 0.85; }
.back-link { display: inline-block; margin-bottom: 20px; color: #ff6b35; text-decoration: none; }
.back-link:hover { text-decoration: underline; }
footer { text-align: center; padding: 20px; color: #666; font-size: 0.9em; }
footer a { color: #666; text-decoration: none; }
footer a:hover { text-decoration: underline; }
.policy { background: white; padding: 30px; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,0.1); }
.policy h1 { color: #ff6b35; border-bottom: 3px solid #ff6b35; padding-bottom: 10px; margin-bottom: 20px; }
.policy h2 { color: #333; margin-top: 25px; margin-bottom: 10px; font-size: 1.2em; }
.policy p, .policy ul { margin-bottom: 15px; line-height: 1.8; }
.policy ul { padding-left: 20px; }
.section-title { font-size: 1.4em; color: #ff6b35; border-bottom: 2px solid #ff6b35; padding-bottom: 8px; margin: 30px 0 20px 0; }
.letter-section { margin-bottom: 25px; }
.letter-heading { font-size: 1.2em; color: #333; background: #fff3e0; padding: 10px 15px; border-radius: 4px; margin-bottom: 12px; }
.intro { background: #fff3e0; padding: 20px; border-radius: 8px; margin-bottom: 20px; line-height: 1.8; color: #333; }