*{box-sizing:border-box;margin:0;padding:0;font-family:system-ui}
.container{max-width:1100px;margin:0 auto;padding:2rem}
nav{background:#1a365d;padding:1rem}
nav a{color:white;margin-right:1.5rem;text-decoration:none}
.intro-box{background:#f0f7ff;padding:1.5rem;border-radius:10px;margin:2rem 0}
.comment-section{margin-top:4rem;padding-top:2rem;border-top:1px solid #eee}
.comment-form{display:flex;flex-direction:column;gap:0.8rem;margin-bottom:2rem}
input,textarea{padding:0.8rem;border:1px solid #ddd;border-radius:6px}
button{width:fit-content;padding:0.7rem 1.2rem;background:#2b6cb0;color:white;border:none;border-radius:6px;cursor:pointer}
.comment-item{padding:1rem;border:1px solid #eee;border-radius:8px;margin-bottom:1rem}