body{background:#f4f4f4;margin:0;font-family:Arial,sans-serif}*{box-sizing:border-box}.loop-container{flex-direction:column;align-items:center;gap:20px;padding:20px;display:flex}.loop-card{background:#fff;border-radius:16px;width:min(90%,420px);padding:20px;box-shadow:0 4px 12px #00000014}.caption-card{background:#fff;border-radius:16px;width:min(90vw,420px);margin:20px auto;padding:20px;box-shadow:0 4px 12px #0000001f}.caption-card,.system-card{border-radius:16px;width:min(90vw,420px);margin:20px auto;padding:20px;box-shadow:0 4px 12px #0000001f}.caption-card{background:#fff}.caption-card main{min-height:120px}.caption-card p{font-size:18px;line-height:1.5}.caption-card footer{flex-wrap:wrap;gap:8px;margin-top:20px;display:flex}.system-card{background:#eee;border-left:6px solid #555}.system-card p{font-size:16px;line-height:1.4}.card-button{cursor:pointer;border:none;border-radius:8px;padding:8px 14px}