[ '材料与芯片', '器件与模块', '场景与应用', '设备与服务', ], 'degrees' => ['associate', 'bachelor', 'master', 'doctorate', 'other'], 'location_countries' => ['cn', 'overseas'], /** 意向参赛地点(报名表 event_location 可选值,稳定编码) */ 'event_locations' => ['shanghai', 'suzhou', 'shenzhen'], /** 观众报名「观赛目的」可选值(稳定编码) */ 'audience_purposes' => [ 'networking', 'collaboration', 'investment', 'study', 'media', 'other', ], /** 单文件上限(KB);须保证 PHP upload_max_filesize、post_max_size 均大于此值(见 public/.user.ini 与 composer serve-dev) */ 'file_max_kb' => 20480, 'file_mimes' => ['pdf', 'ppt', 'pptx', 'doc', 'docx', 'wps', 'rar', 'zip'], /** 报名信息 ZIP 导出限制(可通过 .env 调整) */ 'export' => [ 'part_size' => (int) env('EXPORT_PART_SIZE', 10), 'chunk_size' => (int) env('EXPORT_CHUNK_SIZE', 20), 'max_files' => (int) env('EXPORT_MAX_FILES', 5000), 'max_total_bytes' => (int) env('EXPORT_MAX_BYTES', 2 * 1024 * 1024 * 1024), 'time_limit' => (int) env('EXPORT_TIME_LIMIT', 0), ], ];