* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            background-image: url("/static/images/background.webp");
            background-size: cover;           /* 背景图拉伸至完全覆盖容器 */
            background-position: calc(100% + 200px) center;      /* 居中显示背景图 */
            background-repeat: no-repeat;     /* 避免重复平铺 */
            background-attachment: fixed;     /* 固定背景图位置 */
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 100vh;                /* 最小高度等于视口高度 */
            margin: 0;
            padding: 0;
        }

        .container {
            background-color: rgba(255, 255, 255, 0.95);
            border-radius: 10px;
            box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
            width: 90%;
            max-width: 800px;
            padding: 30px;
            backdrop-filter: blur(5px);
            opacity: 0;
            animation: fadeIn 0.5s ease-in-out 2s forwards;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }

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

        header h1 {
            color: #333;
            font-size: 2rem;
            font-weight: bold;
        }

        .blacklist-form {
            display: flex;
            flex-direction: column;
            gap: 20px;
            margin-bottom: 30px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
        }

        .form-group label {
            font-weight: bold;
            margin-bottom: 5px;
            color: #555;
        }

        .form-group input,
        .form-group textarea {
            padding: 12px;
            border: 2px solid #ddd;
            border-radius: 5px;
            font-size: 1rem;
            transition: border-color 0.3s;
        }

        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: #f44336;
        }

        .submit-btn {
            background-color: #f44336;
            color: white;
            padding: 12px 20px;
            border: none;
            border-radius: 5px;
            font-size: 1.1rem;
            cursor: pointer;
            transition: background-color 0.3s;
            font-weight: bold;
        }

        .submit-btn:hover {
            background-color: #d32f2f;
        }

        .message {
            margin-top: 20px;
            padding: 10px;
            border-radius: 5px;
            text-align: center;
            font-weight: bold;
            display: none;
        }

        .message.success {
            background-color: #dff0d8;
            color: #3c763d;
            border: 1px solid #d6e9c6;
        }

        .message.error {
            background-color: #f2dede;
            color: #a94442;
            border: 1px solid #ebccd1;
        }

        /* 黑名单列表样式 */
        .blacklist-board {
            margin-top: 30px;
            padding: 20px;
            background-color: #f8f9fa;
            border-radius: 8px;
            border: 1px solid #e9ecef;
        }

        .blacklist-board h2 {
            color: #333;
            margin-bottom: 15px;
            font-size: 1.3rem;
        }

        .blacklist-list {
            max-height: 400px;
            overflow-y: auto;
        }

        .blacklist-item {
            padding: 15px;
            margin-bottom: 15px;
            background-color: white;
            border-radius: 5px;
            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
            border-left: 4px solid #f44336;
        }

        .blacklist-item:last-child {
            margin-bottom: 0;
        }

        .blacklist-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 10px;
            font-size: 0.9rem;
        }

        .player-id {
            font-weight: bold;
            color: #f44336;
        }

        .timestamp {
            color: #666;
        }

        .blacklist-reason {
            color: #333;
            line-height: 1.5;
            margin-bottom: 5px;
        }

        .no-blacklist {
            text-align: center;
            color: #666;
            font-style: italic;
            padding: 20px;
        }

        /* 搜索框样式 */
        .search-container {
            margin-bottom: 20px;
            display: flex;
            gap: 10px;
        }

        .search-input {
            flex: 1;
            padding: 10px;
            border: 2px solid #ddd;
            border-radius: 5px;
            font-size: 1rem;
            transition: border-color 0.3s;
        }

        .search-input:focus {
            outline: none;
            border-color: #f44336;
        }

        .search-btn {
            background-color: #f44336;
            color: white;
            padding: 10px 20px;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            transition: background-color 0.3s;
            font-weight: bold;
        }

        .search-btn:hover {
            background-color: #d32f2f;
        }

        /* 移动端适配 */
        @media (max-width: 768px) {
            .container {
                width: 95%;
                padding: 20px;
            }

            header h1 {
                font-size: 1.5rem;
            }

            .form-group input,
            .form-group textarea {
                font-size: 0.9rem;
            }

            .blacklist-header {
                flex-direction: column;
                gap: 5px;
            }

            .search-container {
                flex-direction: column;
            }
        }
        /* 搜索高亮样式 */
        mark {
            background-color: #ffeb3b;
            padding: 2px 4px;
            border-radius: 2px;
            font-weight: bold;
        }