body {
            font-family: Arial, sans-serif;
            margin: 0;
            padding: 20px;
            background-color: #f5f5f5;
			background-attachment: fixed;
			background-size: cover;
			background-position: center;
			background-repeat: no-repeat;
			background-image: url('https://api.klbbx.cc/random_image/崩坏星穹铁道?hsp=s');
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
        }

        .header {
            text-align: center;
            margin-bottom: 30px;
        }

        .header h1 {
            font-size: 2.5em;
            margin-bottom: 10px;
        }

        .header p {
            color: #666;
            margin: 0;
        }

        .nav {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin: 20px 0;
            border-bottom: 1px solid #eee;
            padding-bottom: 10px;
            flex-wrap: wrap;
        }

        .nav-item {
            padding: 5px 15px;
            cursor: pointer;
            color: #666;
        }

        .nav-item.active {
            color: #000;
            border-bottom: 2px solid #000;
        }

        .message-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 20px;
            margin-top: 20px;
        }

        .message-card {
            padding: 20px;
            border-radius: 10px;
            position: relative;
        }

        .message-card.pink { background-color: #ffe6e6; }
        .message-card.blue { background-color: #e6f3ff; }
        .message-card.purple { background-color: #f0e6ff; }
        .message-card.yellow { background-color: #fff9e6; }

        .message-time {
            font-size: 0.8em;
            color: #666;
            margin-bottom: 10px;
        }

        .message-content {
            margin-bottom: 20px;
            line-height: 1.5;
        }

        .message-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: 10px;
        }

        .message-stats {
            display: flex;
            gap: 15px;
        }

        .stat-item {
            display: flex;
            align-items: center;
            gap: 5px;
            color: #666;
            cursor: pointer;
        }

        .message-author {
            color: #666;
            font-size: 0.9em;
        }

        .add-button {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            border-radius: 25px;
            background-color: #000;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            cursor: pointer;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }

        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0,0,0,0.5);
        }

        .modal-content {
            background-color: #fff;
            width: 90%;
            max-width: 500px;
            margin: 50px auto;
            padding: 35px;
            border-radius: 10px;
        }

        .modal textarea {
            width: 100%;
            height: 100px;
            margin: 10px 0;
            padding: 10px;
            border: 1px solid #ddd;
            border-radius: 5px;
            resize: vertical;
        }

        .modal-buttons {
            display: flex;
            justify-content: flex-end;
            gap: 10px;
        }

        .btn {
            padding: 8px 16px;
            border: none;
            border-radius: 5px;
            cursor: pointer;
        }

        .btn-primary {
            background-color: #000;
            color: #fff;
        }

        .btn-secondary {
            background-color: #eee;
            color: #000;
        }

        .comments-section {
            margin-top: 10px;
            border-top: 1px solid rgba(0,0,0,0.1);
            padding-top: 10px;
        }

        .comment {
            font-size: 0.9em;
            margin: 5px 0;
            padding: 5px 0;
        }

        .comment-author {
            font-weight: bold;
            margin-right: 5px;
        }

        #categorySelect {
            width: 100%;
            padding: 10px;
            margin-bottom: 10px;
            border: 1px solid #ddd;
            border-radius: 5px;
        }

        @media (max-width: 768px) {
            .message-grid {
                grid-template-columns: 1fr;
            }

            .nav {
                flex-direction: column;
                align-items: center;
            }

            .nav-item {
                padding: 5px 0;
            }

            .modal-content {
                width: 95%;
                margin: 20px auto;
            }
        }